zenoah

[old man emu]

hey guys can i put a zenoah 32cc top end onto a rovan 32cc bottom end without any problems,ive heard the rovan bottom end is ok just the top is rubbish.

 

[Troopermaniac]

Yes HOWEVER there are slight tolerance issues with the Rovan parts so its impossible to say if it will fit 100% or have squish clearance issues so be prepared to buy thinner gaskets if need be.

I've also noticed rovan parts are oddly one off a bit like the cranks are thinner and such so don't expect to not have possible slight other issues or everything might be peachy. Its a gamble really.

 

[DougStar]

Yes HOWEVER there are slight tolerance issues with the Rovan parts so its impossible to say if it will fit 100% or have squish clearance issues so be prepared to buy thinner gaskets if need be.

I've also noticed rovan parts are oddly one off a bit like the cranks are thinner and such so don't expect to not have possible slight other issues or everything might be peachy. Its a gamble really.

+1
For the time and effort and a good chance of failure just bite the bullet and go zen

 

[old man emu]

oh ok might be easier then, does zenoah engines fit straight in ??

 

[DougStar]

Yes its a drop in

 

[RcJunkie13]

You can but a long block and complete it with the parts off your current engine

 

[old man emu]

oh great do.they last a while is there an hour recommended for top end rebuilds as like dirt bikes have.

 

[Troopermaniac]

Question. What were you looking to spend anyway? Do you have all the outside parts, clutch, flywheel? You COULD always get an OBR. I'm a bad influence.

 

[old man emu]

my engine is 3 hours old just run in i looked inside exhaust fitting my outerwares and seen fairly big scratches in the bore chipping around the ports so im thinking its rubbish. it still runs fine but for how long.i could just put another rovan top end on to not real sure which way to go .

 

[DougStar]

oh great do.they last a while is there an hour recommended for top end rebuilds as like dirt bikes have.

Its not really measured in hours but a decent motor id say 2 years minimum if you run decent oil and look after the filters

 

[KevTrem]

Run it till it dies, then drop a long block in whether that be a Zenoah or an OBR etc.

Its not really measured in hours but a decent motor id say 2 years minimum if you run decent oil and look after the filters

2 years??? I was lucky to get 2 Sundays out of KM engine lol

 

[old man emu]

oh that's great im only bashing it every couple of weeks im using still ultra hp oil hopefully that is ok.was thinking of running motul 800 but not sure.

 

[DougStar]

Iv been running motul for years its good stuff

 

[Troopermaniac]

oh that's great im only bashing it every couple of weeks im using still ultra hp oil hopefully that is ok.was thinking of running motul 800 but not sure.

I heard motul is good. I usually run dominator. In the hard summer ill use benol sometimes but its not recommended to use below 60f.

 

[Phill2]

oh great do.they last a while is there an hour recommended for top end rebuilds as like dirt bikes have.

I've been running my Zen 29 for over 5 yrs with no problems

I just run Havoline dirt bike oil from the servo

 

[old man emu]

ok the 800 off road at 25to1?? i ran it in my ktm for years.

 

[Phill2]

I run 28:1
100 ml in 2.8 litres of 91 unleaded.
Don't use ethanol fuel.

 

[old man emu]

I've been running my Zen 29 for over 5 yrs with no problems

I just run Havoline dirt bike oil from the servo

what oil and ratio phill

 

[RcJunkie13]

my engine is 3 hours old just run in i looked inside exhaust fitting my outerwares and seen fairly big scratches in the bore chipping around the ports so im thinking its rubbish. it still runs fine but for how long.i could just put another rovan top end on to not real sure which way to go .

Same thing happened with my Rovan, they are just trash engines

 

[old man emu]

Same thing happened with my Rovan, they are just trash engines

did you replace the engine