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The car accelerate very well but at 4000 rpm in first gear it died, Very difficult to restart. When restart, have low power .
The air/fuel gauge indicate lean, each time that happen.
No code.
I suspect a fuel problem ???
Sounds like a cam follower jumped off. Best bet is to pull the valve cover and check. You may have a worn cam/follower issue. Let us know what you come up with.
A friend of mine had a similar issue with his '86 last season at the AutoX. Revved up to 4000 rpms, then it fell on its face. After many many tests and lots of colorful words, it turns out the alternator was bad.
Hmmm, popped a head gasket? Still, I'd check to make sure you didn't jump timing. It can _look_ okay, but be off a tooth. You'll have to pull the plug in the cover and check to make sure everything is still lined up.
Fuel pressure is certainly an option, as fuel requirements go up with RPM. Could be a plugging filter, too.
Alternator could certainly be an issue, too, as you voltage requirements will increase with PRM, especially on boost.
Check the timing first, then pull the valve cover to have a look at the valvetrain. If all is in shape there, start the car and check running voltage. After that, things get difficult.
Sounds like a cam follower jumped off. Best bet is to pull the valve cover and check. You may have a worn cam/follower issue. Let us know what you come up with.
I removed the valve cover and the cam follower are OK.
One of the lifter is easy to compress with finger.
Hmmm, popped a head gasket? Still, I'd check to make sure you didn't jump timing. It can _look_ okay, but be off a tooth. You'll have to pull the plug in the cover and check to make sure everything is still lined up.
Fuel pressure is certainly an option, as fuel requirements go up with RPM. Could be a plugging filter, too.
Alternator could certainly be an issue, too, as you voltage requirements will increase with PRM, especially on boost.
Check the timing first, then pull the valve cover to have a look at the valvetrain. If all is in shape there, start the car and check running voltage. After that, things get difficult.
Gene Beaird,
86 2R SVO, G Stock,
Pearland, Texas
The timing is OK,
fuel pump,filter and regulator are new.
Alternator is new.
The valvetrain look OK, but I suspect lifter.
how much time do you have on this engine, hey should pump up in the first 10 mins tho.
Make sure oil can get to it. Some people shim/cut lifters to make the valve train gemotery work. if that's the case, make sure the groove around the center of the lifter matches up with the oil-hole in the galley.
how much time do you have on this engine, hey should pump up in the first 10 mins tho.
Make sure oil can get to it. Some people shim/cut lifters to make the valve train gemotery work. if that's the case, make sure the groove around the center of the lifter matches up with the oil-hole in the galley.
I just installed a complete set of new lifters, and the engine do the same, the engine pull very well, but cut at 4000 rpm, then idle inconsistently.
This engine was running very well untill I replace the valve seal.
The engine has 25000 milles.
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