Rust in engine head??? - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 6 (permalink) Old 01-03-2007, 05:54 PM Thread Starter
Grand Prix 250
Join Date: Oct 2006
Location: Canada, Montreal
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I recently took apart 2 94 Tiger engines. When I took the head off the engine on one of them. The 8 bolts holding the head in place were rusting. One of them was half cut by rust. I had to take the cylinder liners out and clean all this gunk out. I know that the anti freeze might contain water causing rust but this was really bad. The other engine was fine no rust at all. How do I prevent this from happening again? Could I use pure antifreeze or must it be 50/50 water antifreeze. Is there such a thing as non rusting antifreeze?

Why did this happen ????????? :???:
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post #2 of 6 (permalink) Old 01-03-2007, 08:37 PM
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You want to look for glycol based antiffreeze. DO NOT USE NORMAL ANTIFREEZE WITHOUT WATER!!! I highly recommend flighing the engine with the deposits in the coolant channels too.
post #3 of 6 (permalink) Old 01-04-2007, 11:30 AM
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Sounds more like there was never any antifreeze in it.
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post #4 of 6 (permalink) Old 01-04-2007, 11:32 AM
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No, after a long while of not flushing an engine deposits build up. When I ripped appart my 20+ year old 305ci V8 from my project car it was the same way. And that motor was running until I ripped it appart.
post #5 of 6 (permalink) Old 01-04-2007, 06:09 PM
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Using tap water won't help either.
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post #6 of 6 (permalink) Old 01-05-2007, 04:23 PM
Grand Prix 500
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The rust inhibiter in Anti-Freeze has a useful life span. It must be changed once in awhile.[Reminds me, I need to change mine this year.] I use 50% Anti-Freeze with water. Also, you must purge out any air in the cooling system.

[ This message was edited by: Lone-Rider on 2007-01-05 15:26 ]
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