Author Topic: EW Piston Replacement with cb 750 pistons  (Read 293 times)

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Offline LBHill

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EW Piston Replacement with cb 750 pistons
« on: 17 Aug 2018 at 05:31 »
Hello all about to purchase Honda CB 750 pistons to repair Ew  350 engine the question i have is that the cb 750 sc pistons have a 15 mm piston pin is the ew connecting rod little end capable of being machined out to suit replacement bush for the 15 mm pin as there doesnt seem to be alot of meat there to take out with the old original bushes removed  Regards LB Hill

Offline oily bloke

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Re: EW Piston Replacement with cb 750 pistons
« Reply #1 on: 17 Aug 2018 at 07:43 »
Hi,
I replaced mine with CB750 pistons. The small end bushes will ream out OK leaving thin wall bushes. I also used all 3 rings on the piston too but run a small amount of 2 stroke oil in the petrol as a fail safe. The bike has done a couple of thousand miles trouble free.
You may need to chamfer the top outer edge of the piston and take a few thou off the crown. It is worth measuring the crown to head clearance and matching them.
Cheers
Andy

Offline LBHill

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Re: EW Piston Replacement with cb 750 pistons
« Reply #2 on: 17 Aug 2018 at 21:56 »
Thanks for the info thats good then if it is only a matter of reaming them i was concerned there would not be enough left or would need replacing regards LBHill