Can any one help with bearing sizes, looked all over Internet and can't find any measurments, if anyone has done this conversion any help welcome cheers

BOCA Bearings at one time had informnation on all engines and the replacment bearings. I have used several with good results, and at a reasonable price. LOOK FOR THEM ON THE NET FLATHEAD 4

Here's a link to Boca. Is this what you were looking for?

[link=http://www.bocabearings.com/search.aspx?SearchType=StartModel&ProductGroupID=2 &MFGSYSID=20&ModelName=S2000%20RC&Feature=]http://www.bocabearings.com/search.aspx?SearchType=StartModel&ProductGroupID=2 &MFGSYSID=20&ModelName=S2000%20RC&Feature=[/link]

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Unless you can replace the crank pin or have it hardened this is a bad idea. The stock crank pin is to soft and needle bearings will cause it to spall in about 45 minutes.

plus you will need to turn thr rod to find a bearing to fit and then machine the crank and istall a hard pin to the bearing size.

Hey Ken, what are you using for the crank pin material on your conversions? I have yet to find anything that is hard enough to hold up for longer than 6 to 8 hrs in my ST90's.

hard ground dowel that are 60 or better, I would have to look up the part # it has been a while sense I have orderd any I think they come a 100 per box.

For 10mm I've use a wrist pin from a junker that had needle bearings

Hey! Now there's a "smoking" idea. Why didn't I think of that?

Good one Terry!

AV8TOR

The real advantage is most of the wrist pins are hollow so it makes things balance a bit better

WOW Terry, genius idea. That's my answer, thanks.

Also, Thanks go to you Ken. I may yet need the hard ground dowel.

I use a 6mm on the 90's and 8mm on the 2300

Hi Ken,
Is there much chance of installing the same bearings on the rod for a 1.35 Moki? I guess Moki does make a Gas version...but in very limited runs??? Thanks Capt,n