I’ll need to get the hub nuts off the bug to slam the bejesus out of it when the time comes so all good.
The magic tool turned up earlier so I have finally got the flywheel off, I noticed the old seal is proud of the casing. Think it’s masa t to be flush or slightly inset… also one of the shims is busted… And the old oil seal has a definate flat spot on the sealing face The flywheel doesn’t look too good… Should I just get a new flywheel ? It has a distinct wear mark on it.
Seal should be flush or slightly below casing. I'd try polishing your flywheel boss with Scotchbrite before binning it - may be ok. How deep is the wear mark?
I can feel it with my thumb- I’ve not calibrated my thumb however so can’t tell how deep it is. May be I need another tool to measure it!!
Give it a scrub with Scotchbrite first. You may be able to position the seal lip so it bears on a fresh bit of flywheel boss.
So a quick rub shows this groove. Apart from being groovy it’s all nice and shiny. I guess I need to do some measuring to see if I can get the seal to sit not in the groove.
If you want to sacrifice a seal as an experiment, you may be able to position it so it bears on a fresh surface. Getting the seal in as far as it will go might work. As mentioned, the CSP seal tool will shove it right in as far as it will go. Worth a try, and cheaper than a new flywheel!
... or... measure from base to lip on the one you have, go on line to seal suppliers and find one that has engineering drawings of every seal. Buy one with that crucial dimension 1.5-2mm less (or more) even if it's not the same overall depth. Bob's your uncle. Worked for me.
Or you could fit a speedi-sleeve, but check the price compared to a new flywheel. https://www.skf.com/group/products/...smission-seals/wear-sleeves/skf-speedi-sleeve
As summer is here, thought I had better put this back together. As there is no hope of getting the end float within spec what is the best approach to shim some of the movement out?
There is enough time to rebuild an engine in the next month or so to do it properly... One reason the seal would have been fitted proud is to miss the grooves .. but generally people use thinner seals and push them in further ... If you are going to slap it together anyway, Dont worry too much - you need a lot of endfloat before things start hitting the sides... And it will leak as the flywheel rattles back and forth too.. Dont overdo the shims or you may grip a wobbly bearing ...
At the rate I get round to fixing things I’d need at least 3 years to rebuild an engine. I’ll slap it back together and see what happens!!