2LikesRB Concept Engine Thread..
02-27-2014 | 06:38 PM
#3406
Tech Champion
Joined: Nov 2001
Posts: 7,191
From: Hawaii, USA
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
Thanks
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.
Thanks
03-21-2014 | 09:50 AM
#3408
Tech Champion
Joined: Jan 2011
Posts: 6,299
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..
03-21-2014 | 12:14 PM
#3409
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.
03-22-2014 | 12:06 AM
#3411
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..
03-22-2014 | 01:12 AM
#3412
Joined: Apr 2007
Posts: 3,289
From: The Aloha state
03-22-2014 | 01:34 AM
#3413
Tech Champion
Joined: Jan 2011
Posts: 6,299
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?
03-22-2014 | 02:25 AM
#3414
As soon as the novarossi has loosened up I'm putting the blast back in my buggy. For me as a club racer, its a perfect motor. I'm running a GO 2072 pipe on the blast and haven't got any problems with top end. We haven't got the longest straights at our club though.The 2072 has made quite a difference to the bottom end. Still not what I'd want for my truggy, but really nice in the buggy.
03-23-2014 | 01:39 PM
#3415
2nd that had 2 races with the clocked blast v12 it's an absolutely brilliant engine with loads of grunt and smooth delivery right through the power band awesome engine
and would happily by another but the new line looks even better.
04-10-2014 | 11:10 PM
#3417
Tech Champion
Joined: Jan 2011
Posts: 6,299