Michigan Ted
Recruit
- Joined
- Oct 19, 2013
- Messages
- 3
Hello all - new to the forum - frustrated - hoping for some help. I have a 94 OMC SX drive model 3868076, Ford 5.0L EFI motor, model 50FACPMDA. Posted this to the OMC forum, got nothing, thought I'd try the Volvo forum. I had the lower unit replaced last year. Since then the cooling system just hasn't been right. She used to run at 160 F all day long, idle, under load, 160 all day. Since the drive work engine temperature swings high (185+ ish) to low (140 ish) and never seems stable. New t-stat, pump impeller, flushed all lines checking for blockage, none found.
Tried to winterize last week and she wouldn't pull the RV antifreeze in. There just wasn't any suction. Checked the impeller - looks brand new, t-stat opened in a pot of hot water at ~160 ~165 on the range. Pulled all hoses for inspection and to flush / check for blockage.
With the inlet hose disconnected at the sea water pump I put the ear muffs on her and water immediately came out of the starboard side weep holes in the lower casting that are in-line with the vertical drive shaft, forward of the normal water discharge ports! Is that normal? I thought exhaust water would flow there but not fresh water?
Michigan Ted,
Tried to winterize last week and she wouldn't pull the RV antifreeze in. There just wasn't any suction. Checked the impeller - looks brand new, t-stat opened in a pot of hot water at ~160 ~165 on the range. Pulled all hoses for inspection and to flush / check for blockage.
With the inlet hose disconnected at the sea water pump I put the ear muffs on her and water immediately came out of the starboard side weep holes in the lower casting that are in-line with the vertical drive shaft, forward of the normal water discharge ports! Is that normal? I thought exhaust water would flow there but not fresh water?
Michigan Ted,