Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[feeutfo]

would the breathers only affect one valve though?

[Andy H]

would the breathers only affect one valve though?

OIC where Mark is going with this one. Increased pressure in crankcase and cam covers forcing oil past the stem seals.

Presumably the weakest link will fail first (ie No6 stem seal in your case) but if you can reduce the pressure you can reduce the leak without having to replace it.

[feeutfo]

would the breathers only affect one valve though?

OIC where Mark is going with this one. Increased pressure in crankcase and cam covers forcing oil past the stem seals.

Presumably the weakest link will fail first (ie No6 stem seal in your case) but if you can reduce the pressure you can reduce the leak without having to replace it.

Woo. Never thought of it that way! Trouble is breathers def not blockled. Unless there is a problem in the breather box itself?

I put the cam cover seal failure down to age. The o rings where hard and didnt recover their shape when removed. Seals where better but not by much.

[Marks DTM Calib]

would the breathers only affect one valve though?

OIC where Mark is going with this one. Increased pressure in crankcase and cam covers forcing oil past the stem seals.

Presumably the weakest link will fail first (ie No6 stem seal in your case) but if you can reduce the pressure you can reduce the leak without having to replace it.

Correct 

[Kevin Wood]

There was more sh1te than that in my intakes when I LPG'd mine. Don't remember seeing any residue on the back of the valves though.

I check the breather box is clear by attaching a long piece of pipe to each hose barb and checking I can blow down it OK.

Oil level on mine has never moved between services, before and after LPG. Driving style and speed varies with mood. 

The difference could well be explained by a slightly duff petrol injector spray pattern on that pot giving less washing of the walls, IMHO.

I don't think I'd worry about it until oil consumption / visible smoke became a pain, TBH. Worth double checking breather system though.

Kevin

[feeutfo]

just wonder if the petrol injector is still seated correctly after the lpg install. Plenty of extra gubbins in there to push it off line, or i haven't done my job properly rebuilding after the install and drilling the manifold?

I'll have a poke about when i re check the breathers. I'm fairly certain they are fine though.

Thanks guys.

Special mention to Andy H. 

[Andy H]

Special mention to Andy H. 

It wasn't me! I didn't touch it

[feeutfo]

Special mention to Andy H. 

It wasn't me! I didn't touch it

yeah, i saw ya