C95 and CA95 Engine Parts the Same?
C95 and CA95 Engine Parts the Same?
Hey guys I was asked if the C95 and CA95 parts are the same and interchangeable between the two engine models. I assume they are but I haven't actually compared the numbers and done such a thing. They are technically the same engine right?
In this forum"SamCR750A" claims that these are the differences:
"... differences between C and CA are head, carb, pistons, crank, crankcases, gearbox and the camshaft/revcounter drive (early model).
You can mix and max as most parts will interchange as long as you have the right crank for the crankcases and the right cam for the right head, but the C95 cam will go into an early CA head but not the other way round. The only other thing is 3bhp."
"... differences between C and CA are head, carb, pistons, crank, crankcases, gearbox and the camshaft/revcounter drive (early model).
You can mix and max as most parts will interchange as long as you have the right crank for the crankcases and the right cam for the right head, but the C95 cam will go into an early CA head but not the other way round. The only other thing is 3bhp."
Last edited by ByTheLake on Tue Aug 14, 2012 2:23 pm, edited 1 time in total.
Makes me wonder about the .25mm over-sized pistons I installed in my CA95 engine. The over-sized pistons had a slightly different, taller crown shape than the originals, which had a flatter domed crown.
There's no issue with clearance - I can crank the engine without interference. I'm just curious why the piston crown was noticeably taller.
I'll find out when I try to start the beast in a few weeks, probably August 25-26, but has anybody noticed a similarly different piston shape?
There's no issue with clearance - I can crank the engine without interference. I'm just curious why the piston crown was noticeably taller.
I'll find out when I try to start the beast in a few weeks, probably August 25-26, but has anybody noticed a similarly different piston shape?
The pistons can be used in either motor but you can't use one of each in the same motor. The weight is probably different as is the compression ratio.
As long as you have the right crank for the right crank case all other parts can be fitted or made to fit.
The common Benly motors are the 125cc C92 and CB92. The 150s consist of C95, CA95 and the ultra rare CB95.
The 125 top ends will fit on any bottom end but to fit the larger 150 top end on a 125 bottom end requires a little bit of work. (about 5 seconds worth)
It was only recent that I found out that some of the C95 specs were different from other C95s.
Thanks to Cliff, I found out that some C95s have the clutch cable mechanism in a different position with the cable entering the motor through the generator cover instead of through the drive sprocket cover. I would think that Cliff could replace his C95 generator and sprocket covers with CA95 covers or the UK type C95 set up.
The other thing that I found out recently was the Canadian C95 has a 3 screw fixing for the right side cam cover. Although the Canadian head can be used on any motor, you would need the 3 screw cover to match.
Have fun folks, I've been at these motors since the were introduced and I'm still learning.
Sam.
As long as you have the right crank for the right crank case all other parts can be fitted or made to fit.
The common Benly motors are the 125cc C92 and CB92. The 150s consist of C95, CA95 and the ultra rare CB95.
The 125 top ends will fit on any bottom end but to fit the larger 150 top end on a 125 bottom end requires a little bit of work. (about 5 seconds worth)
It was only recent that I found out that some of the C95 specs were different from other C95s.
Thanks to Cliff, I found out that some C95s have the clutch cable mechanism in a different position with the cable entering the motor through the generator cover instead of through the drive sprocket cover. I would think that Cliff could replace his C95 generator and sprocket covers with CA95 covers or the UK type C95 set up.
The other thing that I found out recently was the Canadian C95 has a 3 screw fixing for the right side cam cover. Although the Canadian head can be used on any motor, you would need the 3 screw cover to match.
Have fun folks, I've been at these motors since the were introduced and I'm still learning.
Sam.