That split pin should be dry, mine all have been for years. Even when I thrashed the old 1310 mercilessly around Wakefield Pk...

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

and what did Fred say about the drilling of three holes in the flywheel to let the oil out???

I just hope that the side cover that your using has that built in oil deflecter guard on it, sure helps.

now we have a bit more info. i'm with Mick here. What you have done by not allowing the catch can to vent is to over presurrise the crankcase and foooooom all the seals are now stuffed. well maybe not all, only the most important ones. they may only leak a little now, but pretty quickly there will be more oil coming out than you would believe and clutch slip will stop you in your tracks.

question that the engine builder will ask is WHO hooked the engine up to a catch can with no venting. if it was him, then he gets to redo all the oil seals. if it was you, sorry to say, but you have do it your self or pays someone to do it.

the good news is that it should be curable by
1. redoing the oil seals and gaskets
2. venting the catch can properly

michael

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the world is a book, and those who do not travel read only a page
66 Mini Minor sponsored by http://www.lifeonthehedge.com.au/ The Dog Harness Specialists
It was a pleasure ausmini. I'll miss all you misfits and reprobates

When I worked on race cars years ago, our rule then was the vent area of a catch tank was twice the area of pipes going to it.
I too have seen pitiful Bling!! catch tanks with a mass of pipes going in, and a few weeny 2mm holes in top to `vent' it.
Waste of time...

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

[/quote]
question that the engine builder will ask is WHO hooked the engine up to a catch can with no venting. if it was him, then he gets to redo all the oil seals. if it was you, sorry to say, but you have do it your self or pays someone to do it.

the good news is that it should be curable by
1. redoing the oil seals and gaskets
2. venting the catch can properly

michael[/quote]

The engine builder did the hook up, when I complained about all the oil a few days later he remembered what he'd done and told me I'd need to vent the catch tank.

Which seals/gaskets should I be looking to replace?

Thanks,


Jacks.

Fred said that a lot of the aftermarket flywheels don't have the holes and you need to drill them otherwise any oil that does get into that area will cause the clutch to slip.

Jacks.

I'm told that the seal is created by a couple of bushes with 4thou of play to allow for heat expansion.

Even if I wipe that pin and go for a steady drive, it'll be wet by the time I get to my destination.

If I go for a hard drive, high speed and corners it'll drip a couple of drops and the pin will be wet.

They tell me that they can't build those bushes too tight because they'll seize up.

Jacks.

well yes, there is clearance in the primary gear bushes- but as I said mine runs dry at the split pin. Maybe because I have the PCV system on, and it is working... ie there's a slight vacuum in the crankcase.

<edit> but I'm wondering if your main clutch oil seal on primary gear is leaking, maybe...

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Fred told me that the positive vacume setup would probably help/fix the issue but I don't think the race officials will like that setup as there is a little more potential for oil to hit the road. I know my cousins drag car has the positive setup piped into the exhaust but I don't think they like that for track or rally.

Fred has plans to experiment with the positive vacume setup on a race engine he is building.

Jacks.

"Fred said that a lot of the aftermarket flywheels don't have the holes and you need to drill them otherwise any oil that does get into that area will cause the clutch to slip. "

NO OIL SHOULD GET INTO THAT AREA! (see below)
Maybe you misunderstood? What aftermarket flywheel are you using anyhow?

"but I'm wondering if your main clutch oil seal on primary gear is leaking, maybe"

Yes Doc, that's what I reckon, poor application.

Flywheel is part#

C-AEG619 FLYWHEEL LIGHT 3.2KG

Purchased from Minisport in Adelaide on 19/8/05

Tony Cullen from Minisport tells me there should be no holes but that conflicts with what the mechanic and Fred have told me.

Thanks,

Jacks.

The hole in the housing with the split-pin is to let the oil out.
The holes in the flywheel are to let the oil out. (well it is to keep the oil that does come out off the clutch)

So does that mean...
If you don't need holes in the flywheel then you don't need a hole in the housing? It would be silly not to have a hole in the housing and it is silly not to have the holes in the flywheel.

If I built the motor I would not be worried about a few drops of oil.
If I paid someone big money I would be worried!

I would not be worried about the holes in the flywheel.
I would be trying to find out how much oil is leaking and where from.

Some huge holes have been hole sawed in the clutch cover to allow cooling, if I stick my fingers in there, they come out covered in oil.

They are telling me that without the holes in the flywheel, oil gets onto the clutch. The holes are apparantely close to the centre of the flywheel - I don't have a workshop manual yet (on order) but I am hoping that the point where the oil goes through the flywheel somehow is seperate from the clutch plates.

Jacks.

All what you have said drives me to think.....you need to ask an expert to assess your engine......shieshanhousin (mate) .....crate it down to Graeme Russell in Sydney :!

BTW care to tell us a little more about yourself

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"Show me the Mini!"

Hmmmmmmm!!!!!!
"This might be a dumb question, but in mk1 4sp, 3x syncro box - how many syncro rings are there?

Reason I ask is because I've been charged for 9x of them when building my gearbox but I would expect there to only be 3x of those rings? "

"I don't have a workshop manual yet (on order) but I am hoping that the point where the oil goes through the flywheel somehow is seperate from the clutch plates. "



Yet your doing the TargaTasmania, hmm?