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Author
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Topic: Oil in coolant?
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Fastymz
Gearhead Posts: 193
From: Reno Nv
Registered: Apr 2001
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posted 10-03-2001 01:40 PM
   
Today I found what looks like oil in my coolant overflow tank.And no coolant in the oil.Were do you guys think its coming from?The still runs the same at 180 to 195.Still seems to pull hard all the up the rpms.Is it the head gasket or intake.The intake gasket is only 6mo old.There are no vacuum leaks or any oil coming out of the intake.The plugs are dark tan with oil around the treads,been that for 4 years now.------------------
65 coupe with a stock 1969 351w,RPM intake,carter625cfm,shorty hedmen hedders,black magic electric fan,stock C4,peg leg 8" 2:80,Boss 429 hood scoop,cragers,primer black.
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TomP
Moderator Posts: 2743
From: Delta BC Canada
Registered: Dec 99
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posted 10-03-2001 04:52 PM
I dunno if a 351W can crack like this, but my truck's 428 cracked an oil passage that feeds the heads, it cracked way down in the block near the cam bearings,inside the water jacket, behind the bore so you can't see it. It needed to be sleeved to fix it, and it still gets a bit of oil in there. It won't hurt anything, just softens the rad hoses so they have to be replaced sooner.
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Fastymz
Gearhead Posts: 193
From: Reno Nv
Registered: Apr 2001
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posted 10-04-2001 01:03 PM
Thanks Tom,While I'm not happy to hear it may be cracked.I was hoping for a gasket to be the cause.But being as though the re's only oil in the coolant and no coolant in the oil.It seens that a crack some were would be likely.I f it is cracked should I have it fixed right away or keep driving it for awhile? any one else have any ideas.Thanks for the help Ron------------------
65 coupe with a stock 1969 351w,RPM intake,carter625cfm,shorty hedmen hedders,black magic electric fan,stock C4,peg leg 8" 2:80,Boss 429 hood scoop,cragers,primer black.
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Moneymaker
Administrator Posts: 8910
From: Lyons, IL, USA
Registered: May 99
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posted 10-05-2001 04:14 PM
Flush the cooling system and check it again. You may have an intake gasket problem I suspect.  ------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link
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Fastymz
Gearhead Posts: 193
From: Reno Nv
Registered: Apr 2001
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posted 10-06-2001 01:56 PM
If its the head gasket.I'd like to just take the motor out and rebuild it myself.I dont have the kind of money it takes to buy a crate motor.I cant afford to take it to some one to have it built.Have any of you done a rebiuld your selfs using good parts.And doing as much as possible yourself.How much do you think I could build the motor for.Doing a simple rebuild with new rings and some head porting.As little money as possible.Thansk Ron------------------
65 coupe with a stock 1969 351w,RPM intake,carter625cfm,shorty hedmen hedders,black magic electric fan,stock C4,peg leg 8" 2:80,Boss 429 hood scoop,cragers,primer black.
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