[cherojeep]

Well I had my jeep looked at and was told i have a rod knock first. got a guy i know to give me his opinion and he seems to think its timing chain. he did the old stethescope diagnosis with a screwdriver all over the motor and heard nothing from the oil pain area but heard it right behind the crank pulley where the chain is on the crank.

is it known for timing chains and/or tensioners to go bad?? he also seems to thinnk the heads were already off it at one time.

i dont want to tear it apart if its something major. so i would like some opinions

[jeepdaddy2000]

Try rotating the crank back and forth while observing the rotor. I believe 10 degrees is acceptable slop. Anything over that and you are looking at a replacement.

[cherojeep]

replacement what?? chain/tensioner??? engine?? rotor as is distributor?

[jeepdaddy2000]

Originally Posted by cherojeep

replacement what?? chain/tensioner??? engine?? rotor as is distributor?

Yes..no...yes

[75SV1]

The timing chain isn't a major project. Basicllay a bit more involved than a water pump. Beyond a water pump, you will have to take off the front cover. The timing chains do streach.
Tom

[cherojeep]

hmm guess if i dont sell it i will fix it.

[Heepajeep]

if it is a rod knock at idle, it will go away or be noticeably less knock when the offending cylinders spark plug wire is pulled off.

[cherojeep]

oil pressure is low. idle it reads 0ish and cruising is about 40. what suggests can you give?

[75SV1]

First I suggest you have the oil pressure measured by a manual gauge. Make sure the dash gauge is reading correctly. Then if its reading that low, I would think its time for a new oil pump.
Tom

[cherojeep]

see what happens, my master tech buddy is leaving the dealership i work for and hes the only guy i trust 100%

[Apollo21]

bump for solution