31 replies to this topic

[HUBBA.HUBBA]

Does this look like a correct installation of the oil seal? As it was only put on 250 miles ago and is leaking oil. Which by the looks of things has contaminated my clutch plate. It was installed by my local 'A series specialist'

Any helpful comments appreciated.
[attachment=108990:IMGP1798.JPG] [attachment=108991:IMGP1803.JPG]

Look at the lines of oil from the centre outwards!
[attachment=108992:IMGP1807___Copy.JPG] [attachment=108993:IMGP1811.JPG]

Edited by HUBBA.HUBBA, 06 March 2011 - 12:50 PM.

[Kerrin]

That's not the seal, that is the oil flinger the seal is behind it, prise it forward to reveal the seal.

Did you have the engine breathers connected up to the carb or is the engine breathing heavily to push oil past the seal?

Otherwise, no it should not leak onto your clutch.

[MiniLuke]

Doesn't look like oils is coming through to me. Looking at the clutch plate, there are streaks of grease coming from the splines of the primary gear.

I think the only problem might be that too much grease has been applied to the splines. Was there oil dripping from the drain hole when running?

There is also a blob of red inside the clutch housing, perhaps that is grease?

[HUBBA.HUBBA]

Doesn't look like oils is coming through to me. Looking at the clutch plate, there are streaks of grease coming from the splines of the primary gear.

I think the only problem might be that too much grease has been applied to the splines. Was there oil dripping from the drain hole when running?

There is also a blob of red inside the clutch housing, perhaps that is grease?

Hi, yes oil is coming out of the drain hole (that's one of the things that prompted me to have a look in the first place) . It's new oil so it's quite clear and does show so well on that pic. Have a look at this one you can see some pooling just under the seal.
The red stuff is solid, so not a grease.
[attachment=108994:IMGP1799.JPG]

[HUBBA.HUBBA]

That's not the seal, that is the oil flinger the seal is behind it, prise it forward to reveal the seal.

Did you have the engine breathers connected up to the carb or is the engine breathing heavily to push oil past the seal?

Otherwise, no it should not leak onto your clutch.

I'll have a look behind it.

Yes it is still breathing through breather, but with a K&N breather filter and not connected to the carb.

I am thinking of creating a new breather in the rocker cover. If I did this do you think I could just leave the oil seal alone?

[Guess-Works.com]

Is this the same engine as the one with the clutch issue... if so, I wouldn't worry too much about the oil...

The tail of the crank is goosed...

[bmcecosse]

I don't see any oil running down from the seal...... Your breather(s) should definitely be connected to the carb side inlet - for best chance of an oil-tight engine. And yes - the crank tail doesn't look too good, although I have seen worse. Has the flywheel been spinning on the tail ??

[HUBBA.HUBBA]

Is this the same engine as the one with the clutch issue... if so, I wouldn't worry too much about the oil...

The tail of the crank is goosed...

Hi, yep the same.

Goosed?

[HUBBA.HUBBA]

I don't see any oil running down from the seal...... Your breather(s) should definitely be connected to the carb side inlet - for best chance of an oil-tight engine. And yes - the crank tail doesn't look too good, although I have seen worse. Has the flywheel been spinning on the tail ??

The oil is very clear, but it is definitely pooling just below the seal.

You know what, I thought that about the crank not looking it's best. As far as I am aware the flywheel has not been spinning on the tail. But I suspect when I had some recent work done to the engine, including balancing the crank, It came back with a different pulley on the other end. I don't think I got the same crank back.

I'll look to putting the breather back on the carb.
[attachment=109016:IMGP1799.JPG]

Edited by HUBBA.HUBBA, 06 March 2011 - 07:18 PM.

[MiniLuke]

I don't see any oil running down from the seal...... Your breather(s) should definitely be connected to the carb side inlet - for best chance of an oil-tight engine. And yes - the crank tail doesn't look too good, although I have seen worse. Has the flywheel been spinning on the tail ??

The oil is very clear, but it is definitely pooling just below the seal.

You know what, I thought that about the crank not looking it's best. As far as I am aware the flywheel has not been spinning on the tail. But I suspect when I had some recent work done to the engine, including balancing the crank, It came back with a different pulley on the other end. I don't think I got the same crank back.

I'll look to putting the breather back on the carb.
[attachment=109016:IMGP1799.JPG]

Who the hell built it for you and did not use the crank you supplied...... I think I would go round and "give" him the crank back.

[HUBBA.HUBBA]

I don't see any oil running down from the seal...... Your breather(s) should definitely be connected to the carb side inlet - for best chance of an oil-tight engine. And yes - the crank tail doesn't look too good, although I have seen worse. Has the flywheel been spinning on the tail ??

The oil is very clear, but it is definitely pooling just below the seal.

You know what, I thought that about the crank not looking it's best. As far as I am aware the flywheel has not been spinning on the tail. But I suspect when I had some recent work done to the engine, including balancing the crank, It came back with a different pulley on the other end. I don't think I got the same crank back.

I'll look to putting the breather back on the carb.
[attachment=109016:IMGP1799.JPG]

Who the hell built it for you and did not use the crank you supplied...... I think I would go round and "give" him the crank back.

I won't name him at the moment (depends on the outcome and I don't want to prejudice the court proceedings) because he'll be getting a summons! Can't prove the crank situation but, there are plenty of other things to go on where I have serious back up from a highly respected mini specialist.

Edited by HUBBA.HUBBA, 12 March 2011 - 11:17 PM.

[cooperrodeo]

Your oil seal might not be working too well. The problem I have found is that when you push the clutch housing and seal over the crank there is a tendency for the seal to be pushed inside out. This can sometimes dislodge the spring in the seal. You might have to 'help' the seal get onto its mating surface. I use a very small watchmaker's screwdriver to do this.

[HUBBA.HUBBA]

Your oil seal might not be working too well. The problem I have found is that when you push the clutch housing and seal over the crank there is a tendency for the seal to be pushed inside out. This can sometimes dislodge the spring in the seal. You might have to 'help' the seal get onto its mating surface. I use a very small watchmaker's screwdriver to do this.

Here's the seal. Doesn't look dislodged or does it?
[attachment=109034:IMGP1830.JPG]

[AndyMiniMad.]

It looks fine, but then they allways do! They are such a small cost that I change them every time i remove the transfer housing. But as already mentioned. the oil seal is the least of your worries. That crank is not good! Take it back to the workshop and demand they fit the crank you supplied. unless that was goosed as well.

[HUBBA.HUBBA]

It looks fine, but then they allways do! They are such a small cost that I change them every time i remove the transfer housing. But as already mentioned. the oil seal is the least of your worries. That crank is not good! Take it back to the workshop and demand they fit the crank you supplied. unless that was goosed as well.

I've just got an injection spec seal from minispares. Supposed to better that the standard. So fingers crossed.

GOOSED? what's that mean? Cheers