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I am now into the rebuild of the Shadow engine. I have heard there is a mod. for fitting two tapered roller bearings, back to back on the primary side. Has anyone done this? Details please.
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I am pretty certain that when I had a new big-end in my Rapide the drive side mains were fitted with the lipped mod so that they can't move. I'm not planning on having a look any time soon. (Fingers firmly crossed.)Is it only me who likes the Lipped outer race for the inner main bearing ?.
Our "A" Man told us about many years ago,
They can't walk out !!.
Like all Mod's it needs some playing around, I helped fit them to Big Bill Telfer's a long time ago and
Have a set for my new Comet.
You can still get the narrow bearings or you can use the wider ones with a narrow ET77 and ET19 or you can take the wider bearing race and just chuck it in the lathe. Leaves a nice finish.I think you can only get the bearings "Full width " ?,
So have to get the outer ring ground more narrow for the Vin',
The grinding may make the track "Magnetic ", So that has to be reversed or it could cause problems ?.
I can't remember if both the bearings should be narrow or just the drive side where the alloy spacer and oil scroll goes ?.