fishn_n_tx
Cadet
- Joined
- Mar 22, 2004
- Messages
- 26
1971 50 HP Evinrude 50173S<br /> <br />Problem of the week and maybe next couple of months. Boat ran 24 mph this last weekend but was slow getting up. Hard to start, blowing a little fuel out of the top carb into the air silencer. Ran a compression check today and had 45 in the lower cyl and 55 in the top. Pulled the head this afternoon and the gasket was blown on the top cylinder into the water passage. The top clyinder is scored pretty bad. The lower piston is missing a small edge of the piston and is looking pretty thin in a few other areas. Definately needs a lower piston.<br /><br /> Questions are:<br /><br /> Looks like there is a sleeve, can they be replaced and whats a ballpark figure for the sleeves and labor? <br /><br /> The local marine dealer here priced me pistons at 185 apiece, is the a online source and are used pistons an option?<br /><br /> Is there any place that has rebuilt powerheads?<br /><br /><br /> Thanks, Gary