crossover with thermostat setup
#1
Registered
Thread Starter
Join Date: Aug 2010
Posts: 322
Likes: 0
Received 0 Likes
on
0 Posts
crossover with thermostat setup
How did you setup your thermostat how many hole in them and what hole dia to be able to fill the block of water?
I have try a 140 thermostat with a 1/8 hole dia and the water temp is not stable, they are stable on throtle and when i back to idle the temp raise sudently to 200-220f i shut off the engine imediatly.
How do you make this setup reliable?
I have try a 140 thermostat with a 1/8 hole dia and the water temp is not stable, they are stable on throtle and when i back to idle the temp raise sudently to 200-220f i shut off the engine imediatly.
How do you make this setup reliable?
#2
Registered
iTrader: (2)
Join Date: Aug 2005
Location: Between A Womans Leggs in IL
Posts: 6,306
Likes: 0
Received 1 Like
on
1 Post
fixx
How did you setup your thermostat how many hole in them and what hole dia to be able to fill the block of water?
I have try a 140 thermostat with a 1/8 hole dia and the water temp is not stable, they are stable on throtle and when i back to idle the temp raise sudently to 200-220f i shut off the engine imediatly.
How do you make this setup reliable?
I have try a 140 thermostat with a 1/8 hole dia and the water temp is not stable, they are stable on throtle and when i back to idle the temp raise sudently to 200-220f i shut off the engine imediatly.
How do you make this setup reliable?
#3
Registered
Thread Starter
Join Date: Aug 2010
Posts: 322
Likes: 0
Received 0 Likes
on
0 Posts
Yes i use bypass, with std thermostat (140F)with the hole that i have made in it (1/8'') it is look like that the cold water coming from the bypass affect the thermostat or they make some steam pocket for some reason ???
#4
Registered
I would check your impeller and pump housing. If they are like new, then swap the thermostat for a Stewart high flow model. If you are using a stock thermostat, they won't react fast enough and flow enough when you drop off plane after a hard run. After running wide open and dropping off plane, my boat will rise as high as 190, but will drop quickly back to 160.
#5
Registered
Thread Starter
Join Date: Aug 2010
Posts: 322
Likes: 0
Received 0 Likes
on
0 Posts
#8
Registered
You have other issues drilling holes is not going to help. You have an 80 degree swing. Your cooling system is not in control. You have a blockage somewhere that needs to be addressed.
#9
Registered
ck your oil and P/S coolers for blockage..old impellor pieces etc..as well as the water pump itself...are testing in the water or on the hose ? sometimes they will suck a garden hose closed..