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Re: 318 only running on 4 cylinders HELP!!!!!! [Re: Radio Joe] #370439
07/13/09 05:08 PM
07/13/09 05:08 PM
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So Cal
HealthServices Offline
Why would you even post that?
HealthServices  Offline
Why would you even post that?

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So Cal
Quote:


A guy at work suggested tighening the rockers a bit more. Even if lash is good, if the tips of the valves or pushrods are worn it may not be openong correctly. I'll give it a try but will only run it long enough to see if it helps.




As mention earlier I would recommend the other way around if you are going to try this. Too loose will just make the valve train noisy, too tight will cause the valves not to close completely when the lifters are pumped up.


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.
Re: 318 only running on 4 cylinders HELP!!!!!! [Re: HealthServices] #370440
07/13/09 07:15 PM
07/13/09 07:15 PM
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Laurens, SC
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Radio Joe Offline OP
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Good point- but I ddnt get that far...

Looks like it may be a carb issue after all.

I pulled the bad sides plugs and squirted soem gas in the cyl then put the plug back in. then shorted the entire good side and tried to start the car. Wouldnt start. Thinking maybe I put too much gas in the cyl I held my foot to the floor and tried again- It started and ran. As soon as I took my foot off the pedal it died. Hold pedal half way to floor and start it - It runs. Runs rough because half the engine is still shorted but it does run.

SO it looks like the carb after all. I still dont understand why it is only effecting the drivers side- The reason I ruled out the carb was because of the intake design- half the engine shouldnt be effected by a bad carb.

This will be the second time this damn holley carb has caused me soo much problems. Im gonna buy a new carb and throw this one at the wall....
I'll report after I get a new carb

For all of you that said carb and I said "But that cant be" YOU ARE THE MASTERS, I AM THE IDIOT!

Re: 318 only running on 4 cylinders HELP!!!!!! [Re: Radio Joe] #370441
07/13/09 07:31 PM
07/13/09 07:31 PM
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For all of you that said carb and I said "But that cant be" YOU ARE THE MASTERS, I AM THE IDIOT!





I told you it was carb or vacuum. At least now you know. Post pictures of your spacer and gaskets.

Re: 318 only running on 4 cylinders HELP!!!!!! [Re: NITROUSN] #370442
07/13/09 07:51 PM
07/13/09 07:51 PM
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Oregon
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I just found a very slightly worn throttle shaft on one corner of my carb. I suppose if the throttle shaft is bad enough on one side, it could throw off that side, while the other side is still ok?



If you ever find yourself in a fair fight, your tactics suck.
Re: 318 only running on 4 cylinders HELP!!!!!! [Re: Radio Joe] #370443
07/13/09 10:42 PM
07/13/09 10:42 PM
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Carstairs, Alberta, Canada
dave571 Offline
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Quote:

...
I'll report after I get a new carb....





I look forward to the results with a different carb. I question whether the test you are doing is verifying anything.

Re: 318 only running on 4 cylinders HELP!!!!!! [Re: dave571] #370444
07/14/09 12:32 AM
07/14/09 12:32 AM
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Laurens, SC
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Quote:

Quote:

...
I'll report after I get a new carb....





I look forward to the results with a different carb. I question whether the test you are doing is verifying anything.




well knowing my luck you may be right, BUT if opening the throttle up will get those cyls to run, then the only thing that is differnet is the fuel and air to the cyls. Opening the throttle doesnt change the timing or the valve action.... But nothing else had made sense so far so we'll find out.

Its going to be a little bit before I can afford a new carb- Im gonna pull this one apart and see if I can find any obstructions. Since the prob had gotten worse over a short time, its possible I can find somethign that can be cleaned/fixed.

Last edited by Radio Joe; 07/14/09 12:34 AM.
Re: 318 only running on 4 cylinders HELP!!!!!! [Re: Radio Joe] #370445
07/14/09 01:12 AM
07/14/09 01:12 AM
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Lincoln Nebraska
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I would R&R the intake gaskets 1st & give the offending side a close visual when you come apart


live every 24 hour block of time like it's your last day on earth
Re: 318 only running on 4 cylinders HELP!!!!!! [Re: RapidRobert] #370446
07/14/09 01:52 AM
07/14/09 01:52 AM
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Laurens, SC
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Quote:

I would R&R the intake gaskets 1st & give the offending side a close visual when you come apart




Did that once already about 2 weeks ago...

Re: 318 only running on 4 cylinders HELP!!!!!! [Re: Radio Joe] #370447
07/14/09 08:27 AM
07/14/09 08:27 AM
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Florida
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why do that to the wall,it did not make the engine not run right

throw it out in the back yard

hope that gets it

this has been interesting to say the least


Re: 318 only running on 4 cylinders HELP!!!!!! [Re: MoparforLife] #370448
07/14/09 09:30 AM
07/14/09 09:30 AM
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Southern Cal
Noblewk Offline
top fuel
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To check for an internal leak you need to get some gas into the crankcase, propane will work fine. Start the engine, open the gas valve on the propane tank feeding the gas either to the pvc opening on the valve cover or the oil fill on the other side. If there is an internal leak then the engine will smooth out when it has injested the propane. If this isn't it look at the idle circuit of the carb since you are only seeing the problem during idle.


66 Dart GT, 402 11.18:109 Best 63 1/2 Galaxie 500XL 406 4Speed 13.20:103 Best 2000 Ram 2005 Durango Hemi.
Re: 318 only running on 4 cylinders HELP!!!!!! [Re: Noblewk] #370449
07/14/09 11:55 AM
07/14/09 11:55 AM

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Quote:

To check for an internal leak you need to get some gas into the crankcase, propane will work fine. Start the engine, open the gas valve on the propane tank feeding the gas either to the pvc opening on the valve cover or the oil fill on the other side. If there is an internal leak then the engine will smooth out when it has injested the propane. If this isn't it look at the idle circuit of the carb since you are only seeing the problem during idle.




This is just one HELL of a good way to blow up a crankcase. Where did you find this nonsense?

Re: 318 only running on 4 cylinders HELP!!!!!! #370450
07/14/09 03:02 PM
07/14/09 03:02 PM
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Florida
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I have done it with an 'UNLIGHT" propane torch,but just on the outside around the bottom of carb and along the intake to head rail

I got to much blowby to fill the crankcase with it


Re: 318 only running on 4 cylinders HELP!!!!!! #370451
07/14/09 03:27 PM
07/14/09 03:27 PM
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Quote:

Quote:

To check for an internal leak you need to get some gas into the crankcase, propane will work fine. Start the engine, open the gas valve on the propane tank feeding the gas either to the pvc opening on the valve cover or the oil fill on the other side. If there is an internal leak then the engine will smooth out when it has injested the propane. If this isn't it look at the idle circuit of the carb since you are only seeing the problem during idle.




This is just one HELL of a good way to blow up a crankcase. Where did you find this nonsense?


sounds like a hell of a good way to have big explosion and or fire. Of course then the problem would be solved.

Re: 318 only running on 4 cylinders HELP!!!!!! #370452
07/14/09 03:30 PM
07/14/09 03:30 PM
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Southern Cal
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Quote:

Quote:

To check for an internal leak you need to get some gas into the crankcase, propane will work fine. Start the engine, open the gas valve on the propane tank feeding the gas either to the pvc opening on the valve cover or the oil fill on the other side. If there is an internal leak then the engine will smooth out when it has injested the propane. If this isn't it look at the idle circuit of the carb since you are only seeing the problem during idle.




This is just one HELL of a good way to blow up a crankcase. Where did you find this nonsense?




I have used both Propane and acetylene many times to find leaks, I'm not sure I know how it would blow up the crankcase..... There is no ignition source in the crankcase....


66 Dart GT, 402 11.18:109 Best 63 1/2 Galaxie 500XL 406 4Speed 13.20:103 Best 2000 Ram 2005 Durango Hemi.
Re: 318 only running on 4 cylinders HELP!!!!!! [Re: Noblewk] #370453
07/14/09 03:45 PM
07/14/09 03:45 PM
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and the vac leak would be sucking it into the cyl

but none the less


Re: 318 only running on 4 cylinders HELP!!!!!! [Re: Noblewk] #370454
07/14/09 03:59 PM
07/14/09 03:59 PM
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[quote I'm not sure I know how it would blow up the crankcase..... There is no ignition source in the crankcase....


You evidently have not been around much to not have seen the results of even having a large crankcase explosion from fumes gathered in the crankcase from just having a flooded engine.
A little of those gases that you are using to find the leak leak by the rings into a firing cylinder won't explode??? Well tell that to the guys that have had ballooned oil pans from nothing more than gas fumes built up from a flooded engine that fuel had leaked past the rings on. Oh well do as you please - but hope that you have good insurance.

Re: 318 only running on 4 cylinders HELP!!!!!! [Re: MoparforLife] #370455
07/14/09 05:18 PM
07/14/09 05:18 PM

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You guys are just lucky, and there IS an ignition sourch in the crankcase, especially in older engines---it's called blowby

In my lifetime I've been directly privy to at least 3 cases of crankcase explosions--admittedly these were all caused by fuel pumps leaking fuel into the crankcase

CASE 1 About 1973, Sand Diego, CA. I was on TAD from Miramar, at the "downtown" Navy shore patrol, the "old" San Diego jail. A habitually late sailor had a weird excuse for being late--and I demanded proof. He said his kid started up his 57 Chev to warm it up and BOOM. It drove the oil filler cap off hard enough to dent the hood, blew one valve cover off the engine, and ruined the other cover and pan

CASE II Aftermath, a friend had a 68 Ford 390, also in San Diego. His engine just warped the front/ rear pan seals and blew out the dipstick and filler cap. We weren't smart enough, then, to realize what happened. When he took the car in to get it fixed, the mechanic said "probably the fuel pump", and it was

CASE III After the navy, we were leaving a local cafe, someone had jumped into their 78 Ford Granda/ whatever and cranked the ignition. This was a cold winter night, and BOOM came sparks, oil and junk from under the engine. We didn't stick around, only to take a quick look under the car. It obviously had tried to remove the pan.

These were all caused by fuel in the oil, but it doesn't matter. Anything you do to set up a combustable air/fuel mixture in there, and a little "flash" by the rings is all you need.

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.

Re: 318 only running on 4 cylinders HELP!!!!!! #370456
07/14/09 07:07 PM
07/14/09 07:07 PM
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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.

Re: 318 only running on 4 cylinders HELP!!!!!! [Re: NITROUSN] #370457
07/14/09 07:55 PM
07/14/09 07:55 PM
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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.


This is true, it was used but not injected into the crank case. It used externally around carbs, and manifolds much the same as starting fluid is used today, but it was not pressurized into an enclosed area of an engine such as the crankcase/oilpan area.

Last edited by MoparforLife; 07/14/09 10:04 PM.
Re: 318 only running on 4 cylinders HELP!!!!!! [Re: MoparforLife] #370458
07/14/09 08:27 PM
07/14/09 08:27 PM
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Laurens, SC
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Radio Joe Offline OP
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Well.... I didnt blow up

it wasnt the carb. Although I need to look into better filters- with 2 filters I still had crap in the carb.

Problem was the intake valves on the bad side. The lash was spec according to my manual but just because I was about to give up I pulled the valve cover and loosened the intake valves a half turn and fired it up. Immediately the engien sounded better. put the cover back on and tested it .

That was it! Only thing I can guess is the lifters are pumping up higher after it is running. And apparently the are pumping higher than when I first got it on the road.

DEFINTITY PROBLEM SOLVED!!!!!!!!

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