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Message |
    
kevin stone
Senior Member
Username: kdstone
Post Number: 68
Registered: 01-2009
| | Posted on Monday, November 14, 2016 - 09:10 am: | 
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Hi guys, I've discovered that my heat exchanger has been leaking internally most likely allowing salt water into the coolant. I do not have a copper head gasket because of the fresh water cooling. I'm not sure how long it has been going on but I must assume about 200 engine hours as that's how long sinc we left fresh water.
My question is should I be concerned about the head gasket being corroded? Engine is running great, no sign of milky oil on dipstick. No excess smoking out exhaust.
Engine was rebuilt several years ago and I recall that the shop had to helicoil some of the head bolt holes. That makes me a
Little nervous about pulling the head.
Thanks for all comments
Kevin |
kevin stone
Senior Member
Username: kdstone
Post Number: 69
Registered: 01-2009
| | Posted on Monday, November 14, 2016 - 09:27 am: |
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That 200 hours is about 5 weeks.
Anyone know what the coolant capacity is of the Palmer?
I have a new heat x on the way and will flush out and add new coolant. |
David Grosse
Senior Member
Username: davidg
Post Number: 72
Registered: 11-2010
| | Posted on Monday, November 14, 2016 - 03:29 pm: |
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Hi Kevin,
There is no good answer here.
If your coolant has been contaminated with salt, your steel gasket will rust out. And when that happens, your oil will turn to a milk shake, and your engine will get ruined. Especially, with the number of hours you are running it. It would be better to take out the fresh water gasket as soon as you can.
The Helicoils may work, but a better insert is known as a Keensert. It gets locked in place, whereas a Helicoil can screw up or down and dissappear. They aren't cheap, but I have installed them in a number of engines successfully.
I can't help on coolant capacity, but guess that it is less than 2 gallons.
Good Luck,
David |
kevin stone
Senior Member
Username: kdstone
Post Number: 70
Registered: 01-2009
| | Posted on Monday, November 14, 2016 - 05:52 pm: |
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Thanks David. I seem to have panicked unnecessarily. I flushed out old coolant and found no sign of salt water
Contamination. When I removed old heat exchanger I did a pressure test and believe I used way too Much water pressure and burst a Weak spot. As the heat x was leaking at the sea water inlet it had to go anyway. The inside was probably going to fail Anyway with time if I was able to cause the failure the way I did |
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