EW 350 cc cylinder

[Michel H]

Hello, I am the proud owner of a EW350 (1926) .
I need to replace the rear cylinder and I have 3 questions.
1. Both front and rear cylinders are they identical ? If not, how to make distinction ?
2. How to improve the lubrication of the rear cylinder because I have found that the oil passes through the front cylinder and after the rear cylinder ?
3. The cylinder 350cc models (EW and others) of that time they were all the same sizes ?
Thank you for your informations.
Michel .

[arturro]

Hi Michel
Welcome to the club I'm also EW 350cc 1926 owner.

Best regards Artur

[shuswapkev]

Michel
can you explain why you need to replace the cylinders??


definitely different cylinders front and back

[oily bloke]

Hi,
The cylinders are roughly a mirror image of each other.
If you hold a barrel horizontally with the crown of the barrel away from you the exhaust port should exit from the front lower right. If it exits on the left you either have a rear barrel or not an EW barrel. The front cylinder has an orifice for the oil feed to the front piston.
The rear cylinder is oil fed by splash. Mine runs fine like this but I have heard of some adding a small amount of 2 stroke oil to the fuel to aid bore lube.
My barrels were re lined by a local 'old school' engineering firm. Not an easy task on a blind barrel. Modern Honda pistons fitted with all three rings. So far, lots of miles and no problems.
Regards
Andy

[Michel H]

Hello everybody,
Artur, I 'm not new because I 'm in the club and I drive my EW350 for five years.
Shuswapkev (Kevin ?) , the piston is split and I take advantage of change the rear cylinder which ailettes (english word ?) are broken.
Andy , I thank you for all your explanations . I will try to improve the lubrication of the rear cylinder .
Have a nice week.
Michel.