Low power... worn bearing?

[btoscano]

Well the truck is still not running that great. I am going to try double check with the clear plastic fuel line just before the lift pump to see if I see any bubbles.



I am just confused as to the boost pressure. When the truck is running poorly on the freeway it will say 5 psi of boost on level ground or downhill at 72 MPH. When its running better that number is lower, maybe 2-4 psi.



I am not sure that bubbly fuel would do this? I am wondering if the previous note about a warn front bearing in the transmission is causing a drag on the engine.



I really don't want to pull the Getrag, because that also means pulling the NP205 but maybe I should??? Can I inspect the bearings in the trans without removing the transmission?.

 

[bmoeller]

Also, check to see that the brakes aren't dragging a bit.

 

[dpuckett]

There is no way to check bearings without pulling the transmission and disassembling it. However, you can pull the t-case and check for play in the output shaft of the transmission. If there is slack, you definitely need to work on it. If not, it's a crapshoot.



Daniel

 

[PToombs]

If you pull the PTO covers you can check fore and aft play on the shafts. (Daniel was looking at eye candy during class at SOP!) :-laf If you have enough to see, you have problems. PM MMiller, he has done much work on the getrag lately. The 205 holds the rear shaft, letting it get very bad, and damaging more, before you hear it.

 

[dpuckett]

I thought we were doing timing during Getrag class. And remember, I BROUGHT the eye candy. :-laf Ok, Bill brought some, too.



DP

 

[PToombs]

I thought we were doing timing during Getrag class. And remember, I BROUGHT the eye candy. :-laf Ok, Bill brought some, too.



DP

I'm sure we were doing something we weren't supposed to!