LegendsRacer - Legends & Bandolero Racing Forum

LEGENDS => Engine Care & Tuning => Topic started by: Shawnben on July 17, 2007, 07:56:54 pm

Title: engine rebuild
Post by: Shawnben on July 17, 2007, 07:56:54 pm

How many races before rebuild?

Title: Re: engine rebuild
Post by: legends13 on July 18, 2007, 11:55:20 am

Shawn,

typically you can get 30ish before you start really losing power. Dependablity starts going down after about 45.

Of course, you could end up rebuilding it, and break a rod inthe first race, so there are no guarentees.

Title: Re: engine rebuild
Post by: qweedqwag on August 01, 2007, 11:43:25 pm

30 ish hmmm I have 30 on mine it runs better now than when it had 10 races on it,  I would say keep an eye on the compression levels and keep notes when you see them get to the 150's it may be time, remember to test the engine warm and with wide open throttle.

-M-

Title: Re: engine rebuild
Post by: Shawnben on August 02, 2007, 05:53:02 pm

I did a leak down test and was leaking 35% on one cylinder. So I did a valve job. Now I'm waiting on the tool to change the valve shims. What is everyone running for valve clearences?

Title: Re: engine rebuild
Post by: legends13 on August 03, 2007, 10:20:57 am

shawn,

the clearances should be:

intake: .0043-.0059 inches (.11-.15 mm)

exhaust: .0063-.0079 inches (.16-.20 mm)

What are your valves at now? If they are close, come to the track Saturday and we can adjust them there. I have the tool.

Brad