Shane,
I had this modification done on my bearing cap out of necessity. The crank
had pretty much ground the slot into the cap when the previous thrust
washers fell out. It was either this or a new block. It seems to be holding
up after about 2000 miles. There are pictures of this in the How to Restore
TR250/TR6 book. Below is a copy of a post I made summarizing all the web
sites describing this.
- Hugh
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I have been looking around the web for information on thrust washers and
related repairs. For your viewing pleasure, I found the following sites:
A description of a thrust washer repair and a solid bronze replacement
washer:
http://users.arczip.com/zntech/tr6.html
Description of a performance engine rebuild including pictures of bearing
cap modification to accept a second thrust washer:
http://home.iprimus.com.au/tridim/triumph/Engine.htm
Article on main bearing and thrust washer replacement:
http://www.geocities.com/hottr6/triumph/tr6bearings.html
Machinist's description of repair of damage when the washers fall out:
http://www.sltoa.org/Exhaust/2001/08/SLTOA0801.htm
Fixing your thrust washers once and for all (note Zimmerman's site is
back!):
http://www.mit.edu/people/zimerman/Documents/tr6/mjbtwasherfix.html
Hope this helps anybody trying to track down thrust washer information.
- Hugh Fader
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