Engine/Transmission (1998.5 - 2002) HELP bad oil analysis AGAIN

[dezeldog]

I had my oil analysis done in July after replacing the head gasket it came back that I had fuel dilution. Drained and resampled and it came back the same,, fuel dilution. I thought maybe I had a bad injector and that it would be a good time to go for the 275s and the new tubes. Drained and resampled and it came back today the same----fuel dilution. Any advice on where to look next???TIA

BTW truck has 190000 on it.



Jim

 

[thepitts]

Just One thought

As I have a 24 valve, this is just a guess. Could it be a gasket between the engine and the injector pump? I it was me I would call Peirs!

 

[Ron Bissett]

Fuel in oil ?

Sounds like a ring or two going south with 190000 a could compression test dry and wet should tell the story . Hope this helps do get it checked as a crank case explosion is possible . Ron in LOUISVILLE KY. LOL

 

[work2muchplay2little]

Re: Fuel in oil ?

Originally posted by Ron Bissett

...compression test dry and wet should tell the story ...

Hey Ron, how is this done?

 

[jboehm]

I suppose now somebody is going to post about the lift pump pressure being too high!<G>, thereby causing the dilution!!<G>

 

[flattracker]

The injection pump on your 12 valve is lubricated with engine oil .

The fuel in your oil could be from leaking seals in your pump.

 

[dezeldog]

Ron, hope you're wrong about the ring thing. It happened kinda sudden to be a ring problem I hope.





Flatt I have a 24v but the seal on the Ipump could be the problem. Thanx for the input on this.





Jim

 

[dezeldog]

Pitts, Didn't mean to over look you're post. I'm thinking that's the direction I'm going to go first. It is definitley the least expensive. Thanx for the feed back.



Jim

 

[Ron Bissett]

Originally posted by dezeldog

Ron, hope you're wrong about the ring thing. It happened kinda sudden to be a ring problem I hope.





Flatt I have a 24v but the seal on the Ipump could be the problem. Thanx for the input on this.





Jim

m I had my Gaser cap on after fifty years of gasers I told you wrong thats for gas eng , but if sample is showing gas in oil then aether rings or scored cylinder wall is probably doing it . Crank case explosions are possible , saw it happen to m 60 tank cause fuel in crank case and carbon glowing on top of piston ,blew after stop and shut down for about fifteen min . piston went out side of eng. I guess measuring is only way to find out if rings are bad . lol hope you find out whats wrong soon . Ron in LOUISVILLE KY

 

[dezeldog]

Fuel in oil

Thanx guys for all the feed back. I'm hoping it's the pump seal. I'll start there and see what I come up with. I'll keep ya posted.



Jim