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What do I do with this???? clogged head? carbon?
#314595
05/11/09 01:14 PM
05/11/09 01:14 PM
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Joined: Jan 2003
Posts: 9,857
Cambridge Idaho
RUMBLON
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Cambridge Idaho
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OK, as I always say, I am no mechanic. I love the body and paint work but hate mechanics. I am restoring this 67 power wagon and am changing the the 2BBl for a 4 BBL intake, new barn and electronic ignition. when I pulled the 2BBL intake I found this clogged port???? Ywo questions? Can I just break it out and if so, how do I keep the mess from going inside the engine and causing issues. And, what causes this, should I check further into the motor or do I need to fix something while I am in there????? Its only clogged on one side.  Thanks Dave
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Re: What do I do with this???? clogged head? carbon?
[Re: RUMBLON]
#314596
05/11/09 01:17 PM
05/11/09 01:17 PM
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Joined: Jan 2003
Posts: 17,861
albany ny
05dakota
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I Live Here
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albany ny
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thats the exhaust cross over
5549 post on old board
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Re: What do I do with this???? clogged head? carbon?
[Re: 05dakota]
#314597
05/11/09 01:19 PM
05/11/09 01:19 PM
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Joined: Jan 2003
Posts: 9,857
Cambridge Idaho
RUMBLON
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Cambridge Idaho
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Quote:
thats the exhaust cross over
Ok, does that mean that I can simply break it inwards and it will be blown out the tail pipe? and any idea if something wrong is causing it, or is it normal??
Thanks Dave
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Re: What do I do with this???? clogged head? carbon?
[Re: Jim_Lusk]
#314599
05/11/09 01:35 PM
05/11/09 01:35 PM
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Joined: Jan 2003
Posts: 9,982
Ansonia, CT
CJK440
master
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master
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Ansonia, CT
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Stab at it with a shop vac nozzle nearby.
2017 Contusion Blue Challenger T/A 392 M6 "BLKNBLU"
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Re: What do I do with this???? clogged head? carbon?
[Re: 71 FJ6 Charger]
#314602
05/11/09 02:08 PM
05/11/09 02:08 PM
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Joined: Jan 2003
Posts: 9,857
Cambridge Idaho
RUMBLON
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Cambridge Idaho
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I had to drill it out  Its approx 70 percent open at this point. Made sure nothing got into the valley and used the vacume anyways. all I need now in the intake gaskets, valve cover gaskets, new fuel pump and thermostat and its mostly ready to go. Now, I just need to repair the radiator support and install and I can get these painted fenders off of the ground  Lots of days work left. Dave thanks
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Re: What do I do with this???? clogged head? carbon?
[Re: RUMBLON]
#314603
05/11/09 02:29 PM
05/11/09 02:29 PM
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Joined: Apr 2007
Posts: 2,826
NY usa
540challenger
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master
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Posts: 2,826
NY usa
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Quote:
I had to drill it out Its approx 70 percent open at this point. Made sure nothing got into the valley and used the vacume anyways.
all I need now in the intake gaskets, valve cover gaskets, new fuel pump and thermostat and its mostly ready to go.
Now, I just need to repair the radiator support and install and I can get these painted fenders off of the ground
Lots of days work left.
Dave
thanks
What 4BBl manifold are you putting on there alot of the aftermarket intake's don't used the crossover
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Re: What do I do with this???? clogged head? carbon?
[Re: RUMBLON]
#314604
05/11/09 02:31 PM
05/11/09 02:31 PM
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Joined: Dec 2006
Posts: 3,533
Indiana
Fury Fan
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master
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Posts: 3,533
Indiana
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As mentioned, the easiest way to clean it is with a shopvac nozzle sucking the particles up as you go.
The heat crossover heats the manifold so that the divorced choke will operate properly (in concert with the heat riser in the exhaust manifold) and it also helps keep the carb warm to atomize fuel better.
From my experience, even if the engine will start/run with a blocked crossover, you’re still losing MPG and washing your cylinders with fuel due to a choke that might not open fully. The effects of this vary with the climate you live in.
It’s also been my experience that this is a smallblock issue. I’ve had two 318s do this to me (one did it twice) but I’ve not yet had (or seen) a bigblock plug this passage.
Blocking/not blocking the crossover can be a heated discussion (pun intended) but IMO the closer to stock the engine is, the better off you are to maintain its function.
Parts I seek:
driver doorpanel, 65 Sport Fury, prefer black, needs to be 7-8 on 10 scale, might buy set
16" x 6" Dodge truck wheel(s), from early 70s?, takes 9" dogdish - need for a research job so cheaper is better.
69-73 C-body caliper brackets and/or splashields
Send a PM.
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Re: What do I do with this???? clogged head? carbon?
[Re: 540challenger]
#314605
05/11/09 04:31 PM
05/11/09 04:31 PM
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Joined: Jan 2003
Posts: 9,857
Cambridge Idaho
RUMBLON
OP
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Cambridge Idaho
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Quote:
Quote:
I had to drill it out Its approx 70 percent open at this point. Made sure nothing got into the valley and used the vacume anyways.
all I need now in the intake gaskets, valve cover gaskets, new fuel pump and thermostat and its mostly ready to go.
Now, I just need to repair the radiator support and install and I can get these painted fenders off of the ground
Lots of days work left.
Dave
thanks
What 4BBl manifold are you putting on there alot of the aftermarket intake's don't used the crossover
this stock one but not the carb.
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Re: What do I do with this???? clogged head? carbon?
[Re: RUMBLON]
#314606
05/11/09 04:41 PM
05/11/09 04:41 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
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Posts: 36,040
Lincoln Nebraska
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I would not chip away anything out of there & risk a hardened piece of carbon getting by you & into the oiling system and as said add an electric choke otherwise the choke wont open up near fast enough & the plugs will foul in short order plus the mileage/cyl wash.
live every 24 hour block of time like it's your last day on earth
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Re: What do I do with this???? clogged head? carbon?
[Re: buildanother]
#314608
05/12/09 09:45 AM
05/12/09 09:45 AM
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Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
Rug_Trucker
I Live Here
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I Live Here
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This happened on my original 360 2bbl in my van. In 20 degree weather it would sputter when going slow around corners.
You need to pull the head IMO. Valve seals are probably shot. The valves are probably crudded up bad. Worn valve guides are often the reason.
"The only thing to do for triumph of evil is for good men to do nothing"
"NUNQUAM NON PARATUS!"
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Re: What do I do with this???? clogged head? carbon?
[Re: buildanother]
#314610
05/12/09 10:27 AM
05/12/09 10:27 AM
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Joined: Mar 2003
Posts: 15,478
the boonies
aarcuda
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I Live Here
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the boonies
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Quote:
Be aware that some of that crud will end up in 2 cylinders, as the other end of that channel of carbon is right at the exhaust bowls of the 2 cylinders. It will probably burn out of there anyway though, so just get as much out of there as you can. And the heat riser is probably no good, that's what makes that stuff pile up in there. The chevies also had the same problem and delayed choke opening etc.
 make sure the exhaust valve is closed for those cylinders (i believe they are 5 and 4. if not its 3 and 6. look at the hump in the cylinder and it will go to an exhaust port) or else hard carbon will slip past the exhaust valve and into the cylinder
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Re: What do I do with this???? clogged head? carbon?
[Re: MoparforLife]
#314611
05/12/09 10:58 AM
05/12/09 10:58 AM
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Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
Rug_Trucker
I Live Here
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I Live Here
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Not2farfromNashville, TN
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Quote:
Like said above most of your after market performance manifolds are blocked any way so it would be of no advantage to go through the work to chip it out and risk getting carbon spread through the engine.
Not so! My holley SD, Eddie LD340, LD4B, Offy etc have exhaust crossovers. Your Crosswind, Airgap etc. don't. We are talking about a truck here, not a racecar.
I run with mine blocked off on my 360. It is an aluminum intake. It is OK even down to 2* But that is aluminum! Not iron! Gonna drive in the winter up there in Idaho, and Northern Nevada with an iron intake? Do the job right.
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Re: What do I do with this???? clogged head? carbon?
[Re: Rug_Trucker]
#314613
05/12/09 11:55 AM
05/12/09 11:55 AM
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Joined: Jan 2003
Posts: 9,857
Cambridge Idaho
RUMBLON
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OP
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Cambridge Idaho
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Quote:
This happened on my original 360 2bbl in my van. In 20 degree weather it would sputter when going slow around corners.
You need to pull the head IMO. Valve seals are probably shot. The valves are probably crudded up bad. Worn valve guides are often the reason.
Man, I didnt want to get into this engine that much. as stated above I drilled MOST of it out. The inside looks good, but I am no mechanic. So I should pull the heads and look at the valves seals. So, you mean it needs a valve job????
Dave
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Re: What do I do with this???? clogged head? carbon?
[Re: RUMBLON]
#314614
05/12/09 12:03 PM
05/12/09 12:03 PM
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Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
Rug_Trucker
I Live Here
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I Live Here
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Not2farfromNashville, TN
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Quote:
Quote:
This happened on my original 360 2bbl in my van. In 20 degree weather it would sputter when going slow around corners.
You need to pull the head IMO. Valve seals are probably shot. The valves are probably crudded up bad. Worn valve guides are often the reason.
Man, I didnt want to get into this engine that much. as stated above I drilled MOST of it out. The inside looks good, but I am no mechanic. So I should pull the heads and look at the valves seals. So, you mean it needs a valve job????
Dave
It might. I pulled a slant head apart that had crud caked up on the valves from the guides and seals leaking. Just one side of the head and stem.
A wire wheel fixed that. The faces of the valves were fine. It was a wonder it could breath with tha much crap on them.
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Re: What do I do with this???? clogged head? carbon?
[Re: RapidRobert]
#314616
05/12/09 12:17 PM
05/12/09 12:17 PM
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Joined: Jan 2003
Posts: 9,857
Cambridge Idaho
RUMBLON
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Quote:
Dave I just had a 318 2bbl & the crossover was not heating(should be able to put your finger on the crossover pasage & feel heat starting after several minutes) & I had opened up the carb(from hell) 4 times(not kidding) & it still wasn't right so I swapped to a streetmaster alum intake and an eddy 1406(w elec choke) & now starts excellent/runs fairly good after changing the metering rods one time. I left the clogged heat riser passages as is. imo Even though it looks nasty I would not mess with them(cant get anywhere near all of it out without taking off the heads to do it right & could loose pieces into the oil or the chambers with catastrophic results 
Thats the problem, I was concerned about it getting into the valley and made sure that didnt happen, but didnt worry about it getting any where else. It ran OK, not great before, but it ran good enough. Now I am wondering if I need to pull the engine and just rebuild it.  or at least the heads.
Dave
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Re: What do I do with this???? clogged head? carbon?
[Re: RapidRobert]
#314617
05/12/09 12:20 PM
05/12/09 12:20 PM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
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I Live Here
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Florida
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withRR leave well enuff alone you can change the seals without R&R the heads easy enuff when the engine is out I ran plenty of JY engines worse than that change the seals and button it back together and hope ya dont already have some loose carbon floating around on start up if $ and time are on your side then by all maens do it right and R&R them and get a valve job bet the exhast valves have pitting on the seat now anyways,IMO slam it and run it,I would!  runwhatyabrung 
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Re: What do I do with this???? clogged head? carbon?
[Re: Rug_Trucker]
#314618
05/12/09 12:36 PM
05/12/09 12:36 PM
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Joined: Jan 2003
Posts: 25,200
Upper Midwest
MoparforLife
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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Quote:
Quote:
Like said above most of your after market performance manifolds are blocked any way so it would be of no advantage to go through the work to chip it out and risk getting carbon spread through the engine.
Not so! My holley SD, Eddie LD340, LD4B, Offy etc have exhaust crossovers. Your Crosswind, Airgap etc. don't. We are talking about a truck here, not a racecar.
I run with mine blocked off on my 360. It is an aluminum intake. It is OK even down to 2* But that is aluminum! Not iron! Gonna drive in the winter up there in Idaho, and Northern Nevada with an iron intake? Do the job right.
I said most. And I know for a fact that my LD340 is blocked (cast) and has no choke well accommadation. How hard is it to look at the intake and make sure? Also very easy to put an electric choke on and it will help emensly Not perfect by any means but they do work.
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Re: What do I do with this???? clogged head? carbon?
[Re: MoparforLife]
#314619
05/12/09 12:41 PM
05/12/09 12:41 PM
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Joined: Jan 2003
Posts: 9,857
Cambridge Idaho
RUMBLON
OP
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OP
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Joined: Jan 2003
Posts: 9,857
Cambridge Idaho
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Quote:
Quote:
Quote:
Like said above most of your after market performance manifolds are blocked any way so it would be of no advantage to go through the work to chip it out and risk getting carbon spread through the engine.
Not so! My holley SD, Eddie LD340, LD4B, Offy etc have exhaust crossovers. Your Crosswind, Airgap etc. don't. We are talking about a truck here, not a racecar.
I run with mine blocked off on my 360. It is an aluminum intake. It is OK even down to 2* But that is aluminum! Not iron! Gonna drive in the winter up there in Idaho, and Northern Nevada with an iron intake? Do the job right.
I said most. And I know for a fact that my LD340 is blocked (cast) and has no choke well accommadation. How hard is it to look at the intake and make sure? Also very easy to put an electric choke on and it will help emensly Not perfect by any means but they do work.
I can do that easy enough, thats no issue. i am more worried about the issues I may already caused by drilling out most of the crud. If I am safe, then buying the correct manifold to make it better is no issue. I just dont want to have to replace the engine or get into any major cost factors like doing the heads. But at the same time, its exposed and easy to get to, before I put all newly painted sheet metal around it.
Dave
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Re: What do I do with this???? clogged head? carbon?
[Re: MoparforLife]
#314620
05/12/09 12:46 PM
05/12/09 12:46 PM
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Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
Rug_Trucker
I Live Here
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I Live Here
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Not2farfromNashville, TN
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Moparforlife aluminum as I am sure you know will warm up lots faster than an iron one. Especially with hot oil splashing off the cam. That is why my Offy is plugged on my work van. Dave I've never seen a Mopar head that didn't have sloppy guides. If you have it apart might as well do it right. I am going through this same stuff on a slant that lost oil pressure. I looked at the cam when replacing the crank and bearings. Lifters look fine, lobes have weird looking pits. Changed water pump as the factory one was still there. Doing the freeze plugs, new oil pump, pickup, timing chain etc.........sometimes things snowball
"The only thing to do for triumph of evil is for good men to do nothing"
"NUNQUAM NON PARATUS!"
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Re: What do I do with this???? clogged head? carbon?
[Re: scratchnfotraction]
#314627
05/12/09 01:02 PM
05/12/09 01:02 PM
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Joined: Jan 2003
Posts: 9,857
Cambridge Idaho
RUMBLON
OP
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OP
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Posts: 9,857
Cambridge Idaho
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Quote:
withRR
leave well enuff alone
you can change the seals without R&R the heads easy enuff when the engine is out
I ran plenty of JY engines worse than that
change the seals and button it back together and hope ya dont already have some loose carbon floating around on start up
if $ and time are on your side then by all maens do it right and R&R them and get a valve job
bet the exhast valves have pitting on the seat now anyways,IMO
slam it and run it,I would!
runwhatyabrung
I have a question, whats R&R stand for? and the seals you are speaking of, can I do those as it sits now, or are you talkign about removing the heads and redoing the valve seals?
Thanks dave
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Re: What do I do with this???? clogged head? carbon?
[Re: RUMBLON]
#314628
05/12/09 02:25 PM
05/12/09 02:25 PM
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Joined: Jan 2003
Posts: 25,200
Upper Midwest
MoparforLife
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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R&R is remove and replace If the timing chain has not been replaced now is the time to do it and be safe. I would highly recommend it.  Sorry about my previous posts on the intake cross over. I thought that I had read that it was an aftermarket intake you were putting on it. I would definitely use the composite type gaskets on it though not the tin ones.
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Re: What do I do with this???? clogged head? carbon?
[Re: MoparforLife]
#314630
05/12/09 03:16 PM
05/12/09 03:16 PM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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take a vac to the plug hole on the 2 cyl that could have gotten some carbon in them and turn the cranck and push the piston up and suck any thing in there out slam it together and get er done I would put a t-chain it it for sure while its out,I slam the 2 back freeze plugs in it also,just look at the rest and change if needed while the intake is off and the dist out see if there is any play in the block bushing for the itermed shaft...most the time I pop a new one in just cause it in the whole core plug kit I R&R the oil filter plate and replace that gasket and drill 4 more holes in the plate for good measure clean,paint it with 3 cans dupli coler hemi orange,talk to it,cut/smash knuckles and bleed right in to the engine for mojo to the mopar gods,cuss alittle,dance a jig holding a rattlesnake and bible and oh!!! my bad,,got carried away runwhatyabrung
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Re: What do I do with this???? clogged head? carbon?
[Re: buildanother]
#314633
05/12/09 05:12 PM
05/12/09 05:12 PM
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Joined: Jan 2003
Posts: 9,857
Cambridge Idaho
RUMBLON
OP
master
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OP
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Posts: 9,857
Cambridge Idaho
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Quote:
If you want that thing done and are wondering about the stem seals,(looks like the heads have been off at some point), you can poke the seals with a pocket screwdriver through spring while the v/cvers are off to find if they're soft still or rock hard. It will give you a quicky piece of mind. Or are ya done already?
POKE WHAT? OK, what seals are they, what do they look like. I will check them out.
No, not done, got too frustrated and went back to what I know and started some body work ont he tail gate, radiator support and bed 
and put doen some primer  on a chest style coke machine that I a making a cigar humidor out of.
Dave
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Re: What do I do with this???? clogged head? carbon?
[Re: dirtybee]
#314636
05/12/09 07:39 PM
05/12/09 07:39 PM
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Joined: Jan 2003
Posts: 9,857
Cambridge Idaho
RUMBLON
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OP
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Cambridge Idaho
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Quote:
inside the valve springs there should be some black rubber cup shaped seals over the valve stems. if they are hard, they need replaced. was the motor running ok before?
yep, ran fine, except the carb leaked. and leaked, and leaked.
Dave
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