Low Compression in one cylinder

[durafrickenmax]

I have been having issues with my truck smoking a lot of white smoke and runnning rough at all RPMs. This happened after I replaced my head gaskets myself. Took it to a garage and said I had misfire on cylinder #4. Week later I had misfire on cylinder #1 and #4. Had a buddy test the balance rates and 2 cylinders were off, #1 and #4. Just did a compression test
1-390 2-395
3-390 4-200
5-395 6-400
7-392 8-392

It looks to me like its time for a tear down. Any suggestion or ideas?

 

[PAT]

Bent rod?

 

[TheBac]

LBZ -- I'll bet cracked or burnt piston

 

[mckey73]

Here is the idea that I have been kicking around, it only costs 3 sets of injectors...

 

[Slammed2007Lbz]

Looks like your Bullydog with ''Crazy Larry'' has caught up with ya and struck misery on one of your pistons

 

[redws6rocket]

i would leak it down before tear down, be exactly sure you know what to look for.

 

[JD4440]

any blow by out the oil fill tube while running ?

 

[super diesel]

200psi on just 1??? Maybe a ring, or a valve (if not a cracking piston). I was usually around 300 + or - on all when ever I bent rods.

On edit: what JD4440 said.

 

[jc1843]

Did you adjust the valves correctly-after the had gasket job.

Bad piston will usually blow pressure out the oil filler cap when running.

 

[dmaxvaz]

Did you adjust the valves correctly-after the had gasket job.

Bad piston will usually blow pressure out the oil filler cap when running.

X2, I think he has the lash set too tight on that cylinder. That is if there is no issue with a cracked piston.

 

[durafrickenmax]

I forgot to mention it also started spitting oil out of the exhaust, it is also leaking oil between my uppipe and downpipe.

Call me stupid but I did not adjust the valves when reinstalling them, I just pulled the rocker assy off, kept everything together and torqued down when re installed. Guess I should check valve adjustment.

 

[dmaxvaz]

I forgot to mention it also started spitting oil out of the exhaust, it is also leaking oil between my uppipe and downpipe.

Call me stupid but I did not adjust the valves when reinstalling them, I just pulled the rocker assy off, kept everything together and torqued down when re installed. Guess I should check valve adjustment.

Nevermind, disregard my last statement. Its going to need a teardown

 

[PAT]

Uh oh. I'm sorry man.

 

[TeaBagger2006]

Dude.....

 

[02greysixer]

Damn


Sint frum tha orijinul smert fone

 

[JD4440]

*facepalm*

 

[GeneralTJI]

Bummer man scares me everything this happens