External Coolant leak
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External Coolant leak
Just picked up an 86 F350 with a 460. Its losing coolant from the passanger side of the block. Has anyone ever heard of the freeze out plugs rotting through causing the leak? Will a blown head gasket leak down the block? I think that there are one or two allen head screws in the block. Do they go into the water jacket? And would they rot through? There is no coolant in the oil or in the exhaust. Please dont tell me its a cracked block. Any help??? Vinny
Last edited by vinnyf350; Sep 27, 2006 at 10:14 PM. Reason: sp
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From: Kuna ID
The freeze plugs can rot out. I have seen it happen on trucks newer than yours. You can buy temporary rubber freeze plugs. Once you remove the old plug, you insert the rubber one and tighten a bolt in the middle which causes the rubber to expand and hold itself in the block. Make sure it's nice and tight, I had one blow out on me once. It's supposed to be a temporary fix, but some people have run them for years at a time without problems.
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Just picked up an 86 F350 with a 460. Its losing coolant from the passanger side of the block. Has anyone ever heard of the freeze out plugs rotting through causing the leak?
Yes, nothing lasts forever..heat/cool/heat/cool/heat/cooland the corrosion will eventually rot out the freeze plugs
Will a blown head gasket leak down the block?
If it is on the low or outside of the head..yes, it can leak out past the gasket
I think that there are one or two allen head screws in the block. Do they go into the water jacket?
some do.. some don't.
some are used for drain plugs
And would they rot through?
eventually after many years they may rust out
There is no coolant in the oil or in the exhaust.
Please dont tell me its a cracked block.
Okay, I won't
Do you have any pics of it to view ?
Just picked up an 86 F350 with a 460. Its losing coolant from the passanger side of the block. Has anyone ever heard of the freeze out plugs rotting through causing the leak?
Yes, nothing lasts forever..heat/cool/heat/cool/heat/cooland the corrosion will eventually rot out the freeze plugs
Will a blown head gasket leak down the block?
If it is on the low or outside of the head..yes, it can leak out past the gasket
I think that there are one or two allen head screws in the block. Do they go into the water jacket?
some do.. some don't.
some are used for drain plugs
And would they rot through?
eventually after many years they may rust out
There is no coolant in the oil or in the exhaust.
Please dont tell me its a cracked block.
Okay, I won't
Do you have any pics of it to view ?
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