I have recently bought a 1981 S3 XJ12 which was imported in 1986 from UK.
It now has 140,000miles.
I would like to permanently remove the engine breather as it is slightly oil fouling the LHS
throttle valve and air cleaner, can I attach an external filter.
The car runs well except for minor oil leaks, I have just bypassed the transmission oil cooler,
which was leaking at one of the radiator attachment pipe connectors. Is this OK, the car is not
driven hard ( except when overtaking occasionally :-), so transmission should not need cooling.
I would like to permanently remove the engine breather as it is slightly
oil fouling the LHS
throttle valve and air cleaner, can I attach an external filter.
I suppose you could, but I don’t think it’ll be an improvement. You’ll
just be fouling THAT filter instead. Why don’t you just get some K&N
filters (cleanable) and perhaps a deflector over that hole into the housing
so it doesn’t blow directly onto the filter element?
I was thinking of using a cleanable external filter. The deflector wouldn’t
prevent the throttle valve getting oily.
Is this a common problem, the engine has high milage but runs well starts
well and fuel economy is Ok.
I have just bypassed the transmission oil cooler,
which was leaking at one of the radiator attachment pipe connectors. Is
this OK, the car is not
driven hard ( except when overtaking occasionally :-), so transmission
should not need cooling.
I think not! The A/T develops heat at IDLE. It needs cooling at all
times. You could, of course, install an external radiator, but perhaps the
best idea would be to get your radiator fixed. Most GM cars have the exact
same internal cooler arrangement so radiator shops must know how to fix
them.
Ooops. I,ve been driving it for a while. But not convinced yet, I will
attach a recording temperature gauge to my temporary bypass pipe.
I recently had a Holden Commodore VL, which had a temperature switch to
prevent overdrive if the transmission oil was not warm. Perhaps the
temperature of the radiator, is more important for warming the transmission
oil than cooling, unless driven as hard as the car is designed for.
How does this affect me.
PS. I,ve given up on the diodes and taken up lawn mowing.-----Original Message-----
From: Kirbert [SMTP:palmk@nettally.com]
Sent: Wednesday, April 21, 1999 2:37 AM
To: Mark Price
Subject: Re: [v12-engine] engine breather removal
From: Mark Price <@Mark_Price>
I’m not sure the filter will either. The thing gets grungy, supposedly due
to heavy components of the gasoline depositing. Maybe your oil will keep
it well lubed!My right hand side throttle is always clean, and how do the gasoline
deposits get to the air intake side of the throttle valve.
Might wanna do an archive search. There was some discussion about
the grunge actually causing sticking butterflies, and that Ford was
coating butterfly parts on other cars with Teflon to address the
problem. As for fuel getting to the butterflies on the V12, I think
it’s possible just because it’s downhill from the injectors to the
butterflies!
We’ve got others on this list ADDING coolers to their trannies, and you’re
REMOVING the only one you’ve got?Did they add them for racing or is their a problem with the original
transmission cooling.
Again, check archives. I recall they were people living in warm
climates that wanted to extend the life of their GM400’s.
– Kirbert | Palm’s Postulate:
| If anything is to be accomplished,
| some rules must be broken.
| – Kirby Palm, 1979From: Mark Price mprice@electrix.co.nz