Originally Posted by InspGadgt (Post 12922909)

Hey people...need some help here. A friend of mine got an RB X10 .21 engine a couple years ago and we've never been able to get it to run right. It was so tight to start with a starter box couldn't turn over the motor and we had to use a Hudy break-in stand just to get the engine run at all. Once we got the engine to run and back in the car we noticed the engine was still really hard to start and ran well over 300* even when running rich. So he gave up on the car for awhile. Now I've got my hands on it to try and make it work. I figured I would add in a head shim and seal it up really good in case it is an air leak or compression too high. I now have the engine head off and am noticing that sometimes when I turn the crank by hand the piston gets stuck really hard near the top...but most times it gets tight but not stuck. Should I worry about this? Am I going the right direction trying to seal it up and add a shim?

Thanks

Originally Posted by aznitronut (Post 12922966)

If you still have the Hudy break in bench, run some more fuel thru it, it won't hurt to use another head shim either, heat the engine up to at least 200 degrees before you try to start the engine, check your needle settings, factory settings are HSN 3.5 turns out from bottom, LSN 5 turns out from bottom.

Originally Posted by Herrsavage (Post 13117648)

Any new experiences with RB Blasts? I just ordered a Tamiya truggy kit for 99 bucks, and want to use it as a mess-arounder, and was wondering if I should just put this Blast V9 I have laying around in it, or maybe try to trade it for a basher .28 instead.. Also have a V15..

Originally Posted by JamesArluck (Post 13059139)

Anyone know what size bearings are in the Blast V15? I'd like to replace mine.

Originally Posted by Rampokker (Post 13119481)

I've run a blast V9 in my buggy and really liked it. I don't think its got enough torque to run in truggy though. From what I've read so far I would use the V15 in the truggy.

Originally Posted by Herrsavage (Post 13119523)

Thanks.. That's what I figured. I think I'll have to use the V9 as trade-bait for something stronger.. I've heard it's good in buggy.. How long did yours last? How was the top end, if the bottom was soft?

Originally Posted by hambone (Post 13118026)

I just raced my clockwork modded blast v12 last weekend for the 1st time. Wow! That engine will blister the ass of many big buck modifieds. It's one of the stoutest 21's I've owned. And that includes the CRE Bonito! Great engine.