Overheating at speed
08-27-2008 | 03:07 PM
#22
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Joined: Jun 2004
Posts: 1,949
Likes: 37
From: Omaha, Nebraska. Boat on the Mighty Mo! Longest river in the USA!
You might be surprised when you look through it.
08-27-2008 | 03:53 PM
#23
Charter Member # 55
Joined: Oct 2000
Posts: 20,272
Likes: 2,512
From: Omaha/LOTO
They are either plastic or aluminum.
The plastic ones are one piece with 1 SS plate and the aluminum body ones are 2 pieces with 2 SS plates.
Aluminum one is first on page, plastic is second on page.
http://boatfix.com/bykeywordmerc.asp...kit&texttype=2
The plastic ones are one piece with 1 SS plate and the aluminum body ones are 2 pieces with 2 SS plates.
Aluminum one is first on page, plastic is second on page.
http://boatfix.com/bykeywordmerc.asp...kit&texttype=2
08-28-2008 | 08:56 AM
#24
Thread Starter
Gold Member
Joined: Oct 2006
Posts: 43
Likes: 0
From: Newark, DE
They are either plastic or aluminum.
The plastic ones are one piece with 1 SS plate and the aluminum body ones are 2 pieces with 2 SS plates.
Aluminum one is first on page, plastic is second on page.
http://boatfix.com/bykeywordmerc.asp...kit&texttype=2
The plastic ones are one piece with 1 SS plate and the aluminum body ones are 2 pieces with 2 SS plates.
Aluminum one is first on page, plastic is second on page.
http://boatfix.com/bykeywordmerc.asp...kit&texttype=2
Here is what mine looks like:
09-02-2008 | 07:46 AM
#25
Thread Starter
Gold Member
Joined: Oct 2006
Posts: 43
Likes: 0
From: Newark, DE
Fixed it!!!
I put everything back together and guess what? It does not overheat. Yeah.
The engine is running 10 degrees hotter than the other one, port = 145, sbd = 155, so I'm pretty sure I still have a restriction in the oil cooler.
If I can just get through the rest of the season, I'll pull it all apart this winter.
Thanks everyone for helping.
09-17-2008 | 07:50 PM
#26
Charter Member#157
Joined: Oct 2000
Posts: 1,859
Likes: 3
From: Minneapolis, Mn, Usa
oil cooler!!
especially if around low water levels and sand
I back flushed, removed hoses, new impeller and housings and still the same thing!
even went after the hose in the gimbal/drive connection.
nothing helped!
until i pulled the oil coolers off and found to have only 3 open channels!!!!
took a lot of coat hangers/patience and pushing-pulling and pounding to get them clean.
However it all paid off because now they run cool and I did not have to spend $287/each for replacements
especially if around low water levels and sand
I back flushed, removed hoses, new impeller and housings and still the same thing!
even went after the hose in the gimbal/drive connection.
nothing helped!
until i pulled the oil coolers off and found to have only 3 open channels!!!!
took a lot of coat hangers/patience and pushing-pulling and pounding to get them clean.
However it all paid off because now they run cool and I did not have to spend $287/each for replacements
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09-18-2008 | 05:55 AM
#27
Thread Starter
Gold Member
Joined: Oct 2006
Posts: 43
Likes: 0
From: Newark, DE
oil cooler!!
especially if around low water levels and sand
I back flushed, removed hoses, new impeller and housings and still the same thing!
even went after the hose in the gimbal/drive connection.
nothing helped!
until i pulled the oil coolers off and found to have only 3 open channels!!!!
took a lot of coat hangers/patience and pushing-pulling and pounding to get them clean.
However it all paid off because now they run cool and I did not have to spend $287/each for replacements
especially if around low water levels and sand
I back flushed, removed hoses, new impeller and housings and still the same thing!
even went after the hose in the gimbal/drive connection.
nothing helped!
until i pulled the oil coolers off and found to have only 3 open channels!!!!
took a lot of coat hangers/patience and pushing-pulling and pounding to get them clean.
However it all paid off because now they run cool and I did not have to spend $287/each for replacements
10-15-2008 | 10:23 AM
#28
Registered
Joined: Aug 2006
Posts: 45
Likes: 0
From: Wisconsin
I have had similar problems
Problem was the feed hose to the sea pump was being sucked closed when it higher rpm when more suction was created - collapsing the hose.
The problem caused impeller failure and caused the pieces to be clogged at the cooler-back flushing eliminated the large chunks from the system-however there were some that were clogged at the thermostat-also there were some that "melted" their was thru the system.
Anyway, the hose would not collapse on the garden hose, just under a load when in the water under power. check that system for faults. Possible - trying to help
Good luck
Problem was the feed hose to the sea pump was being sucked closed when it higher rpm when more suction was created - collapsing the hose.
The problem caused impeller failure and caused the pieces to be clogged at the cooler-back flushing eliminated the large chunks from the system-however there were some that were clogged at the thermostat-also there were some that "melted" their was thru the system.
Anyway, the hose would not collapse on the garden hose, just under a load when in the water under power. check that system for faults. Possible - trying to help
Good luck
