"My impeller was stolen a few
"My impeller was stolen a few years by a good mechanic. He left the four fastners nestled on top of the brass pump cap within easy eye shot in the engine bay. In any case, the bait shop had an impeller but no gasket. The chessy mechanic on duty said you can use a paper plate and cut your own gasket. We fortunately found a foam type gasket and used it. No problems. Recently I found parts of the impeller in the heat exchanger basket. What was left of the impeller still worked. Next day I started the engine again and no water coming from exhaust. Closely monitored heat and once beyond 195 I shut it down. I removed impeller pump housing and found large veins of the impeller cloggin the exist port of the pump. I removed the impeller, Found an impeller in the glove box (Sierra brand) that was purchased new 5 or 6 years ago. Did not have a gasket so I pourchased flat stock fiber gasket material from local HW store. Cut gasket to fit and installed impeller. It does not pull water.
I removed copper tube from pump to heat exhanger and it is not cloged. I disconnected the rubber flex hose above the started that connects the other copper hose the the transom through pipe and with a pucket of water and small hose. started siphon and shoved hose into flex hose and the impeller was moving all that water through heat exhanger to exhaust no problem. I reconnected the flex hose and tighted all clamps still no pick up. I have the our driver in a large tub with water line 6 inches above pickup grid of outdrive. The water neck as replaced about 5 years ago and only has 5 or 6 hours it should be and appears to be golden. Same goes for the hose from water neck to transom. Out driver is not clogged although I did not try to backflush. Could the fiber gasket be leaking enough air to prevent water suction? This has be baffled. It was working fine at an impeller that had 50% of it;s flappers. I don't get it.
This is a 1984 bayliner with AQ125B and Penta outdrive. The impeller pump appears to be in satisfactory condition. I guess I could try this without a gasket, any thoughts on that?
I live in Tucson AZ so most rubber parts that sit for very long get dry rotted. The new old stock impeller hasn;t come apart or anything. Any clues on what could be wrong here?
Thanks, Bob"
"My impeller was stolen a few years by a good mechanic. He left the four fastners nestled on top of the brass pump cap within easy eye shot in the engine bay. In any case, the bait shop had an impeller but no gasket. The chessy mechanic on duty said you can use a paper plate and cut your own gasket. We fortunately found a foam type gasket and used it. No problems. Recently I found parts of the impeller in the heat exchanger basket. What was left of the impeller still worked. Next day I started the engine again and no water coming from exhaust. Closely monitored heat and once beyond 195 I shut it down. I removed impeller pump housing and found large veins of the impeller cloggin the exist port of the pump. I removed the impeller, Found an impeller in the glove box (Sierra brand) that was purchased new 5 or 6 years ago. Did not have a gasket so I pourchased flat stock fiber gasket material from local HW store. Cut gasket to fit and installed impeller. It does not pull water.
I removed copper tube from pump to heat exhanger and it is not cloged. I disconnected the rubber flex hose above the started that connects the other copper hose the the transom through pipe and with a pucket of water and small hose. started siphon and shoved hose into flex hose and the impeller was moving all that water through heat exhanger to exhaust no problem. I reconnected the flex hose and tighted all clamps still no pick up. I have the our driver in a large tub with water line 6 inches above pickup grid of outdrive. The water neck as replaced about 5 years ago and only has 5 or 6 hours it should be and appears to be golden. Same goes for the hose from water neck to transom. Out driver is not clogged although I did not try to backflush. Could the fiber gasket be leaking enough air to prevent water suction? This has be baffled. It was working fine at an impeller that had 50% of it;s flappers. I don't get it.
This is a 1984 bayliner with AQ125B and Penta outdrive. The impeller pump appears to be in satisfactory condition. I guess I could try this without a gasket, any thoughts on that?
I live in Tucson AZ so most rubber parts that sit for very long get dry rotted. The new old stock impeller hasn;t come apart or anything. Any clues on what could be wrong here?
Thanks, Bob"
