Guess What I'm doing this weekend?

[AH64ID]

Cracked injector bodies don't generally lead to piston failures, but they can lead to too much fuel in the oil which will damage bearings and the like. 

Injector nozzle and stuck injectors are what lead to piston issue. 

 

 

As for the compression test it should be 350 psi minimum and within 20% cylinder to cylinder, from the FSM. 

That being said weak batteries, weak starter, or a cold engine can effect the reading. Valve adjustment can also effect the readings. 

They are all very close so I would assume batteries are weak or the tester is off, or the starter wasn't ran long enough. 

 

 

On the most important note...do NOT run that AFE fuel filter. They are not fuel water separators and only 7um absolute, not the 3um they advertise. 

The best filter to run in the OEM housing is the Baldwin PF7977. 

 

Edited February 22, 2016 by AH64ID

[Mopar1973Man]

We need to create a article on compression testing for the 3rd Gen and the limits. AH64ID are you up to it?

[AH64ID]

I'm not really sure a write-up is worth the time. The procedure and limits are in the FSM which is available for download in the download section.

[Mopar1973Man]

That the problem. I can't link to an FSM page.   I know there is all the information everyone can want in the FSM but when you want to point some to information it's much easier to point to URL link than an FSM page...

[AH64ID]

28 minutes ago, Mopar1973Man said:

That the problem. I can't link to an FSM page.   

Why not?

epage 5627

 

Edited February 23, 2016 by AH64ID

[Me78569]

because user are not always able to see into the download section, downloads are only open to those who donate to pay for the bandwidth.  

 

It would be much better to take that info out of the FSM and move it to an article.