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08-30-2020, 08:04 AM | #1 |
Senior Member
Join Date: Nov 2011
Location: Readfield, Maine
Posts: 347
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Can Not get Idle Down on Flathead
Before I can find a vacuum leak to deal with the high idle, I have another problem. I mentioned earlier that I had antifreeze coming from the drivers side exhaust. I checked the torque and found it to be right on(60 ft lbs). I then took the head pipe off and found the center tube wet with antifreeze. I took #1,#3 and the next one to the right of #3. Antifreeze started coming out of the #3 bolt hole. The numbers are in the torque sequence. What do I do now?
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08-30-2020, 10:00 AM | #2 |
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Join Date: Oct 2011
Location: Shelton, WA
Posts: 3,799
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Re: Can Not get Idle Down on Flathead
Some head studs/bolts holes go into the water jacket. That is why you would put sealant on the threads when installing them. To see if maybe the head gasket is blown you should put the bolts back in and do a compression check. Or maybe just pull that head off and see if there is a crack, if lucky, and there is not put a new head gasket on and be good to go.
Good luck. |
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08-30-2020, 10:03 AM | #3 |
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Join Date: Nov 2015
Location: North Pole, Alaska
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Re: Can Not get Idle Down on Flathead
I’m confused, Is antifreeze coming out of the exhaust bolt holes? Or out of the cylinder head bolts?
If exhaust, then you’ve got a crack or rust through, if cyl head, it could be just a gasket or? Only way to find out is to pull the head off. |
08-30-2020, 10:08 AM | #4 |
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Join Date: May 2010
Location: Oshkosh, Wi
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Re: Can Not get Idle Down on Flathead
Almost all of the head bolts/studs go through to the water jacket.
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08-30-2020, 11:23 AM | #5 |
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Join Date: Nov 2011
Location: Readfield, Maine
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Re: Can Not get Idle Down on Flathead
The water is coming out of the #3 head bolt hole, if you look at the tightening sequence for head bolts.
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08-30-2020, 11:25 AM | #6 |
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Re: Can Not get Idle Down on Flathead
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08-30-2020, 11:59 AM | #7 |
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Re: Can Not get Idle Down on Flathead
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