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Sounds like something needs to cool off. Think of something that might be overheating (or "thinks" it's overheating) like a bad coil, a bad relay, a bad sensor... This vehicle looks highly modified. What does it have for an ignition system? What does it have for a fuel system? RestorationRides...

I think you could be on the right track with the fuel pump as the source of the problem. However, it's very easy to blame other problems as a fuel delivery problem. Letting the engine idle for a bit as a way of letting it "catch up" as you say, doesn't really give you the kind of test you need...

Why do you believe that the engine is running too lean...? If the answer is: "Because lean engines run hot and tend to backfire", I would not argue that point with you. However, if I knew that the engine was running hot and backfiring, I wouldn't necessarily assume it was a mixture issue. I...

Hi. A bent drive shaft is never a good idea. It will cause vibration which will increase typically with Road speed. In addition, it will cause increased wear on Driveline components on either end of that drive shaft. But, having the drive shaft just fall out of the truck is probably not what...

In answer to the question about the fumes in the vehicle, I would like to directly answer those. I have developed a sensitivity to unburned and semi-burned hydrocarbons which yields headaches, itchy eyes, stuffy nose, and hives. Thank goodness for these modern engines with their fuel injection...

I agree too. The voltage should be somewhere closer to 6v to 7v if I remember right. This is based on the fact that most coils wereb designed along the lines of the original six volt car systems. But, one thing that's important to note, and nobody's mentioned so far, is that in cranking mode...

OIL PRESSURE ISSUE: There should be no noticeable correlation between tire size and/or load on the motor with respect to oil pressure AT ANY GIVEN RPM. Any given RPM, in any normal driving situation, should yield approx. same oil pressure. However, engine temperature and oil temperature will...

An easy way to check (if the motor is still intact) would be to look at the spark plug wires at the distributor. Determine the direction of rotation of the distributor, note the cylinders that the wires go to in order as it would rotate and then compare that to the even or odd fire firing order...

I wholeheartedly agree with you JPNinPA. I'm disgusted with the lack of leadership in this great country of ours. Sent from my Z981 using Tapatalk

Still not clear to me. Are we talking rod caps or main bearings caps... Don't pay some mechanic 80 bucks to do your compression check. Just go down to Harbor Freight pick up a guage for probably less than 50. Use the 20% off coupon. And that's an item that's always on sale. You can pick up a...

4 psi variance is good. What is the average pressure...? Good Job on finding the loose caps. Rods or mains? How loose? Sent from my LG-H631 using Tapatalk

All engines are going to make that hissing sound as you cycle through the compression stroke on each cylinder. Take out all of the spark plugs first and then run compression checks to get a sense of the relative health of each and all of the cylinders. You're looking for a significant difference...

Tell me what you think a dealer car can provide for you that a private party car would not have...? Sent from my LG-H631 using Tapatalk

I wonder where that crack blocked thing ever came from... it's amazing how much misinformation there is out there in the world...;-) Two things that I know will crack heads and blocks. Insufficient antifreeze in below freezing temperatures and putting cold water in an overheated engine. Other...

Just curious. What's a 331 stamp? RR Sent from my Z970 using Tapatalk

Pretty hard to tell anything from that video. What I find helpful is to either go get a stethoscope at the auto parts store or use something like an old broom handle. Put it against the engine in several different areas and then we're up to the broom handle end and listen. Besides that, how...

I respect your opinion Jeepn but I'm going to stick to what I said before. In an HEI system such as a late-model factory system or maybe an MSD or something like that, they can jump a very large gap and it won't do any damage to the unit. They're built robustly and ballasted to avoid that sort...

A wider gap on the spark plug is probably a BETTER idea if it is a high energy ignition system and all the components are in good shape. Narrowing the gap back to 35 reduces the stress on the ignition wires (which reduces the tendency to arc-over in places you don't want it to) but is not...

Nice diagram, JPNinPA. By measuring the weight of the vehicle at all four corners, individually at rest, we can determine the CG of the vehicle in 2 axis (x & Y), but not in the z-axis directly. Never thought about it in relationship to off-road vehicles like this, but it is obviously important...

Wow, 78cj ! Didn't know those axles weighed that much! Definitely something to consider... Sent from my LG-H631 using Tapatalk