Clutch Oil Seal - SORTED ???
Turbo Mini Forums

Jimster,

The crank is not in the centre of the hole in the transfer case. See my last post above.

It is actually 0.006" to one side, making the gap on one side 0.012" bigger than the other.

All the dowels are in place and it wont move.

I've been reading DIN 3760 standard for lip seals and the allowable eccentricity is stated as 0.35mm (0.014") for seals this size, so it should be OK.

I'm waiting for the seal to arrive from M&M. I'm going to try it but I'm preparing to get the engine out next wekend in case.

Edited by Paul S on 15th Sep, 2006.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Have you taken into consideration that additional to your 0.012 missalignment that the primary gear also has a clearance and moves about as well as slight crank flex??? not to mention main bearing clearances. They all eventualy add up.

if 0.014 is the tollerence for these seals and you are running at 0.012, its a bit close and leaves no room for error.

Id be trying another transfer case and see if it lines up better

Edited by Sprocket on 15th Sep, 2006.

Fitted another primary gear and a cheap seal.

Also connected up the breathers to the carb to lower crankcase pressure.

15 miles at low throttle/revs and so far OK.

Please all join me:

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Over 100 miles now and still OK.

Max 3000rpm and light throttle but running in anyway.

Lambdas wired in and sorting the fueling out.

The SW5 and the 2.76 diff working well together - pulls like a train.

Getting there.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

so it sounds like you had the same problem as me. im gonna investigate further when i next have my engine. it drove me mad.

no longer a series, but still 1.3 turbo.

Yep,

Three minipares seals failed. one cheap one worked.

BUT, I changed the primary gear twice and now I have the breathers connected to a vacuum.

I think the breathers were struggling with the pressure from the re-ringed engine, but who knows.

The main thing is that it appears to be sorted.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

i only have the little air filter type breathers. all i can think of is perhaps like whats allready been said is that the cranks not on the center of the transfer hole and the cheap seals cope better when working to one side,

no longer a series, but still 1.3 turbo.

Some of you may remember this saga.

The engine has now done about 5000 miles and always dumped a little bit of oil when it was cold. However, I could do 100 mile trips without a spot on the drive afterwards.

Once I lost the breather connection to the carb when I fitted the fuel injection I had oil slicks in the garage and on the drive.

Anyway, found this:



The epoxy blocking the drift holes has melted. Not sure when this happened, but it may have been the problem from the start.

Edited by Paul S on 16th Mar, 2008.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

what about tapping the holes then fit grub screws with some loctite?

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

My comment on page 1 of this topic said that Araldite softens with heat. I knew this was the problem from the start.

Paul

I seriously doubt it!

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

I'm having the same issue. I'm starting to think the red/orange seals aren't as good as the double type with the dust cover. I digress,

Paul do you have the dims for the bore on a 998 primary? I would like to measure mine and see how it fairs.

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!