Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
STOP!! Never post your email address in open forums. Bots can "harvest" your email! If you must share your email use a Private Message or use the 
smilie in place of the real @
Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
I'm looking for a set of Main bearings for a 66 3000. They need to be 50 thousands undersize. Can you get these or is the crank scrap. This is for an engine that only had 2000 miles on it. One of the thrust washers delaminated and went right into the crank and tore apart the bearings and journals.
-
Hi Guest!
If you appreciate British Car Forum and our 25 years of supporting British car enthusiasts with technical and anicdotal information, collected from our thousands of great members, please support us with a low-cost subscription. You can become a supporting member for less than the dues of most car clubs.
There are some perks with a member upgrade!**Upgrade Now**
(PS: Subscribers don't see this gawd-aweful banner
Triumph guy needs Austin Healey part information
- Thread starter mallard
- Start date
Share this page
Randy Forbes
Yoda
Offline
I'm pretty sure that .040" undersize is as far as they're commercially available. I am not aware of how you'd go about having a set of undersize bearings made, but "boyracer" on here may have some info on the subject.
Honestly, getting your hands on another crankshaft sounds a lot easier, and an awfully lot cheaper.
Honestly, getting your hands on another crankshaft sounds a lot easier, and an awfully lot cheaper.
Offline
When I rebuilt my 100 engine I had to source .060 over pistons from England, couldn't get them here, they list .060" main bearings on this site:
https://www.scparts.co.uk/index/lang-2/lk...ldetailtop=-500
https://www.scparts.co.uk/index/lang-2/lk...ldetailtop=-500
Brinkerhoff
Jedi Knight
Offline
I'd look for another crankshaft also. It might not be prudent to turn the crank down that far. Good luck , that kind of sucks. It shouldn't be too hard to find a good crank for this engine , I think all 3000s used the same one but I'm not positive. Kevin
Randy Forbes
Yoda
Offline
Yes, and 100/6 too.Brinkerhoff said:
Legal Bill
Jedi Knight
Offline
you can also have old one built up to standard.
BoyRacer
Jedi Warrior
Offline
I have ACL rod and main bearings for sale, but only .010 and .020. I have some questions. First question: I have never heard of a thrust washer delaminate - so what makes you think it was the thrust washer coming apart rather than metal from another source circulating in your oil system? Second question - did your engine builder tell you that you need .050 bearings before or after he ground the crank? Third question - how many journals are so bad that you would have to grind to a .050 depth? Last question - who rebuilt your engine that only has 2000 miles on it before it destroyed itself. Hopefully, not the same person that is telling you you need .050 bearings.