Re: 318 only running on 4 cylinders HELP!!!!!!
[Re: Radio Joe]
#370461
07/14/09 09:48 PM
07/14/09 09:48 PM
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Joined: Dec 2007
Posts: 7,759 So Cal
HealthServices
Why would you even post that?
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Why would you even post that?
Joined: Dec 2007
Posts: 7,759
So Cal
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Glad you decided to check it. Sometimes when you get a dozen people each telling you a dozen things to check it becomes very hard to actually do what everyone asks. I would definitely recheck all your rocker arm adjustments. Especially before you end up burning up a valve.
Allen
Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first.
Life was a little easier when I was just a wrench.
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Re: 318 only running on 4 cylinders HELP!!!!!!
[Re: HealthServices]
#370463
07/14/09 10:02 PM
07/14/09 10:02 PM
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Joined: Feb 2005
Posts: 4,884 Michigan
MNobody
master
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master
Joined: Feb 2005
Posts: 4,884
Michigan
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Quote:
Quote:
So basicaly the valves were being held open and it didn't show on the compression test because you did'nt do a leakdown?
Not necessarily, without enough oil pressure the hydraulic lifters could be collapse and not show because they did not pump up enough with just cranking. But with the motor running and the lifters pumped up the valves could not close.
Aah i see, i'm assuming thats one of the reason the motor is supposed to be warm when doing a compression test, so the lifters are fully pumped up?
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Re: 318 only running on 4 cylinders HELP!!!!!!
[Re: Radio Joe]
#370466
07/14/09 10:50 PM
07/14/09 10:50 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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after it cold check the lash to see what it is cold then recheck when hot,adjust acordingly but make note of cold lash for the future may just want to go over all of them to check and make sure they are set correct I would have it good and warmed up before the adjustment to specs then recheck next morning and button the vc up this has been real interesting and glad you got it...I hope
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Re: 318 only running on 4 cylinders HELP!!!!!!
[Re: NITROUSN]
#370468
07/15/09 12:28 AM
07/15/09 12:28 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Quote:
Where did "we" learn this propane / acet "trick?" Is this being taught in some mechanics school? Is it in some manual / book you bought? I've never heard of this before, but as a guy who used to service HVAC, including nat gas/ LP/ oil heat, I'll guarantee you that if you do this enough, you'll regret it.
Better step back on your rant. Propane was once used to set carbs up. It was an authorized mopar service procedure. Properly used I see no problem un using it for a vacuum leak. A running motor is going to burn it not deposit it in the crankcase. There is a lot you obviously do not know.
I'm not stepping back from anything, and this is not a rant. It is a statement of FACTS that HAPPENED. I'm well aware of the propane setup procedure, and it has nothing at all to do with injecting flammable materials into the crankcase, any more than running an engine on LP does.
What I asked you is, where did you "learn" this, and so far you have not given a factual answer. I'd be willing to bet you cannot quote ANY respected shop manuals, school texts, or any other respected source that recommends this.
I WILL GUARANTEE YOU that if you do this enough, there will be an unplanned event. You will not like the unplanned event.
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Re: 318 only running on 4 cylinders HELP!!!!!!
#370469
07/15/09 01:25 AM
07/15/09 01:25 AM
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Joined: Dec 2007
Posts: 7,759 So Cal
HealthServices
Why would you even post that?
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Why would you even post that?
Joined: Dec 2007
Posts: 7,759
So Cal
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Not too sure I follow what the whining is about concerning using propane to diagnose, but it is a tool we were taught in school to use. It is a tool that is sold in the tool truck and can even be found in the Sears catalog. OTC makes this one. It was also taught in smog class and it is also a required tool to have if you are a smog and repair station. Carb cleaner is not one of those items. http://www.smogcheck.ca.gov/80_BARResour...uide_Equip.htmlCan it be dangerous?-If used incorrectly, of course
Allen
Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first.
Life was a little easier when I was just a wrench.
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Re: 318 only running on 4 cylinders HELP!!!!!!
[Re: HealthServices]
#370472
07/15/09 06:37 AM
07/15/09 06:37 AM
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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:
Poly 318. I know nearly nothing about the poly 318, but I thought all of them in those years were adjustable.
Hopefully this is the problem and nothing else was disturbed while diagnosing it.
They are adjustable but I neglected the fact. Sorry. But I am not the only one though because I saw other posts talking about lifter pump up and on a poly there is no lifter pump up. Solid lifters.
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Re: 318 only running on 4 cylinders HELP!!!!!!
#370473
07/15/09 07:24 AM
07/15/09 07:24 AM
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Joined: Jan 2003
Posts: 18,419 UPPER MICHIGAN, MARQUETTE COUN...
NITROUSN
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 18,419
UPPER MICHIGAN, MARQUETTE COUN...
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Quote:
Quote:
Quote:
Where did "we" learn this propane / acet "trick?" Is this being taught in some mechanics school? Is it in some manual / book you bought? I've never heard of this before, but as a guy who used to service HVAC, including nat gas/ LP/ oil heat, I'll guarantee you that if you do this enough, you'll regret it.
Better step back on your rant. Propane was once used to set carbs up. It was an authorized mopar service procedure. Properly used I see no problem un using it for a vacuum leak. A running motor is going to burn it not deposit it in the crankcase. There is a lot you obviously do not know.
I'm not stepping back from anything, and this is not a rant. It is a statement of FACTS that HAPPENED. I'm well aware of the propane setup procedure, and it has nothing at all to do with injecting flammable materials into the crankcase, any more than running an engine on LP does.
What I asked you is, where did you "learn" this, and so far you have not given a factual answer. I'd be willing to bet you cannot quote ANY respected shop manuals, school texts, or any other respected source that recommends this.
I WILL GUARANTEE YOU that if you do this enough, there will be an unplanned event. You will not like the unplanned event.
First of all if your rant is pointed at me get your facts straight. No where did I say it was right or did I condone injecting propane or any other flamable material in the crankcase. I merely stated that propane is a known approved method for setting up carbs and leak checking. Stupid people make stupid mistakes. To each their own.
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Re: 318 only running on 4 cylinders HELP!!!!!!
[Re: MoparforLife]
#370476
07/15/09 10:51 AM
07/15/09 10:51 AM
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Joined: Feb 2007
Posts: 90 Laurens, SC
Radio Joe
OP
member
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OP
member
Joined: Feb 2007
Posts: 90
Laurens, SC
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Quote:
I maintain that you may have adjusted you lifters wrong not that you did but may have. In my above post I suggested that you took the hydraulic to tight therefore ajusting the lifters with a bottomed out plunger. Now finding that you have solid lifters I maintain that you may have adjusted them to 0 lash + one turn which is not the way to do it. With the lifter on the base circle of the cam the intakes need .010 clearance HOT and the exhaust need .018 clearance hot.
No I didnt do a leakdown like was suggested- I will have to invest in the parts to get the setup- maybe next time I can find it on my own.
Well Im defintiely no expert- I preferr adjusting chevy rockers while they are running
Anyhow- I dont THINK i adjusted them wrong because the car ran fine for a while and then progressively got worse... For some reason they tightened themselves up- If they are solid then I dont know how they tightened up on their own.
I plan to run another copmpression check this weekend as I want to see if the compression changed on that side.
After that I will recheck lash on all the valves. I did it hot last time but this time i will record the numbers hot and cold...
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Re: 318 only running on 4 cylinders HELP!!!!!!
[Re: Radio Joe]
#370477
07/15/09 11:18 AM
07/15/09 11:18 AM
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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:
I maintain that you may have adjusted you lifters wrong not that you did but may have. In my above post I suggested that you took the hydraulic to tight therefore ajusting the lifters with a bottomed out plunger. Now finding that you have solid lifters I maintain that you may have adjusted them to 0 lash + one turn which is not the way to do it. With the lifter on the base circle of the cam the intakes need .010 clearance HOT and the exhaust need .018 clearance hot.
No I didnt do a leakdown like was suggested- I will have to invest in the parts to get the setup- maybe next time I can find it on my own.
Well Im defintiely no expert- I preferr adjusting chevy rockers while they are running
Anyhow- I dont THINK i adjusted them wrong because the car ran fine for a while and then progressively got worse... For some reason they tightened themselves up- If they are solid then I dont know how they tightened up on their own.
I plan to run another copmpression check this weekend as I want to see if the compression changed on that side.
After that I will recheck lash on all the valves. I did it hot last time but this time i will record the numbers hot and cold...
If you want to do it running there is no reason that you can't other than the mess. Have adjust many old Y block Fords and older solid lifter Mopars that way.
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