Originally Posted by Ginters (Post 9249629)

Last question

is the odonnell 99 plug a good plug to use with standard plug rb's ?

Originally Posted by aznitronut (Post 9248121)

If you can.get the S7 Europa cheap, use it, get away from the JP pipe, they tend to run hotter than most pipes, the Europa was the same engine, piston, sleeve, rod, and crank as the WS7, what was different, was the crank was not coated, the case was not black, and the rod was not as good, I probably went thru a half a dozen over the years when they were around, use the RB 2045 pipe, with the RB198 header, it will give you plenty of bottom, maybe even use the RB 204 header, it will.give you more bottom yet. It would probably be best to replace the conrod in that engine also, if your using the engine in a truggy, go with all aluminum clutch shoes too, it should be fine.

Originally Posted by bucket2772 (Post 9259532)

Hello all,

My engine us a RB S7, about 5 years old and it runs great when it gets going but if I do not run it for a couple of days, it is hard to get going.I am also having problems with the idele settings (It revs high when jumping and I am not on the trottle) I have taken really good care of it, after run oil, broken it down and cleaned it when not racing it, etc etc.

I do alot of racing but I am just wondring if it is time to get a new motor:confused:

Originally Posted by bucket2772 (Post 9259532)

Hello all,

My engine us a RB S7, about 5 years old and it runs great when it gets going but if I do not run it for a couple of days, it is hard to get going.I am also having problems with the idele settings (It revs high when jumping and I am not on the trottle) I have taken really good care of it, after run oil, broken it down and cleaned it when not racing it, etc etc.

I do alot of racing but I am just wondring if it is time to get a new motor:confused:

Originally Posted by Chris Peralta (Post 9259887)

Generally if it is revving high when you are jumping it's either a leak somewhere like said above or your tune is off. The easiest way I have ever found to locate air leaks on my engines is to always keep the externals of the engine and carb very clean. If you start noticing wet buildup anywhere you have a leak. This is not necessarily true on the front bearing, that will leak just from running very rich at times.

How much fuel have you run thru the engine? How is the compression? Also if you run 10-15 laps then come into pit lane to let the car idle for 10 seconds what does the idle do? Have you been killing glow plugs at all?

Originally Posted by Chris Peralta (Post 9260461)

If you seem to be killing glow plugs there may very well be slop at the conrod/crankpin connection or between the rod and wrist pin. In my experiences when the engine will rev like that in the air it may very well be the tune. It sounds to me like you have either a lean HSN or a rich LSN or a combo of both to compensate for one another.

With the wheels off the ground if you rev the engine up high for a few seconds and let off the throttle does the idle drop down nicely on it's own? Does it start high and slowly drop down and almost die? Or does it just stay idling high for quite some time?

By the way... cool lookin pup! Is that a Dobie by any chance?

Originally Posted by bucket2772 (Post 9260527)

The HSN is a little lean but it seemed fine when it was being driven. If I rev the engine, it does not idle high. I will break it down to see what I come up with.

FYI He is a Rott. He just looks lean because that was 4 years and 67 pounds ago:lol:

Originally Posted by JeredR (Post 9265590)

I just ran a tank through my rc8t with s7 europa,it runs good even with 14t clutch bell just needs 13t to get some snap for corners and jumps.

Originally Posted by JeredR (Post 9266012)

stock plastic shoes and stock replacement springs,I went from a .28 jpx so I was running a 14t and 15t on bigger tracks.