Re: MG TC Con Rod Bolts

Clive Sherriff · Post by **Clive Sherriff** » Sun May 12, 2002 3:00 am

Ive a nice set of later XPAG rods here with non standard Oversized but rather nice Big End Bolts. They are 11/32 inch Diameter and 24 tpi and 6 bolts have FC marked on the heads (one has CP another 5). Are these recognisable to anyone? I know there have been efforts successfully made to fit other trustable big end bolts from modern production cars etc so any lore about non standard sized Big End Bolts welcomed Thanks Clive

Ron Simon · Post by **Ron Simon** » Sun May 12, 2002 10:20 am

--- Clive Sherriff clive.sherriff@ntlworld.com> wrote:

> > Ive a nice set of later XPAG rods here with non > standard > Oversized but rather nice Big End Bolts. > > > any lore about non standard sized Big End Bolts > welcomed > > Thanks > > Clive > Clive, when we built the 1500cc bored out motor that

is currently in my TC we used aircraft quality grade 8 bolts with the head ground down to fit the TC rods that we used. We used modified MGB lock tabs for the nuts. We have many thousands of miles on the TC since including a trip to England for the G.R.A.B 98 tour. Just came back from a trip to Palm Springs California At times we were over 70 mph on the freeway. No problems of any kind with this setup. Ron Simon

> > > > > > Your use of Yahoo! Groups is subject to > http://docs.yahoo.com/info/terms/ > >

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Skip Kelsey · Post by **Skip Kelsey** » Mon May 13, 2002 10:30 am

Clive: I have had very good luck using the HD bolts from Brown & Gammons. They are very robust units. Skip Kelsey............................................. At 10:46 AM 5/12/02 +0100, Clive Sherriff wrote:

>Are these recognisable to anyone?

joecurto@aol.com · Post by **joecurto@aol.com** » Mon May 13, 2002 2:50 pm

I have used MGB con rod bolts from 18v motors, larger diameter and nice shoulder to align the cap on, have to ream out holes and resize the rod, look out for holes to close to the bore of rod as bolt will have a nick taken out of it. Joe curto [Non-text portions of this message have been removed]

Bullwinkle · Post by **Bullwinkle** » Mon May 13, 2002 11:40 pm

I've had Ford 289 rod bolts in my TD for 25 years. They already have flats on both sides of the head. You have to carefully trim one side a little more to get them to fit. I did the triming with small cut off wheel in a Dremel tool. If you use a grinder you run the risk of overheating the bolt. I also used the matching self locking nuts. These bolts have a slightly reduced diameter just under the head to reduce the potential of a crack developing in this area. Blake

Bullwinkle · Post by **Bullwinkle** » Tue May 14, 2002 7:58 pm

Recently I stated I was using rod bolts out of a Ford 289 engine. That was in ERROR. The bolts are out of a Datsun 510, part number 12109-B3000 which of course would be 8 mm. I had another full box of 10 on my spare parts shelves. My brother helped rebuild the engine and was a Datsun mechanic at the time so I should have known. Perhaps it was the Ford's valve stem seals which he used. Blake

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