1991 Indy 500 Keeps Blowing coolant - Snowmobile Forum: Your #1 Snowmobile Forum
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post #1 of 7 (permalink) Old 09-20-2011, 08:44 AM Thread Starter
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1991 Indy 500 Keeps Blowing coolant

Hey there snowmobile fans my indy 500 keeps blowing coolant out and popping out the rad cap , wondering if its a bad thermostat ? but then I heard from somebody that this sled doesnt have a thermostat , I have also recently blown and replaced a head gasket, is there anything else I may need to check or any common problems
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post #2 of 7 (permalink) Old 09-20-2011, 10:55 AM
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check the seal on the radiator cap most likely thats your leak

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post #3 of 7 (permalink) Old 09-21-2011, 07:34 PM
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replace the rad cap
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post #4 of 7 (permalink) Old 09-22-2011, 10:10 AM
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Sounds to me a based around the head and the cylinder is leaking. Check to make sure the head isnt warped or loosen. When u replace the gasket, make sure you tighten it down within spec and retorqe after 25 miles or so. WL
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post #5 of 7 (permalink) Old 09-22-2011, 05:45 PM
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22ftlbs on the head and get a new cap. did that to me with my old 500 and all it was was the cap.

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post #6 of 7 (permalink) Old 09-27-2011, 09:08 AM Thread Starter
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thanks for the tips guys , gonna go check it out tonight , I think I tightened the head down to hard , plus Ill probly have to replace the cap anyways, I should of mentioned that its blowing the cap and what holds the cap on there off
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post #7 of 7 (permalink) Old 09-27-2011, 09:50 AM
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probably just a rotted cap cant handle itself under pressure

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