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Old 09-28-2022, 08:05 AM
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n20ta2 n20ta2 is offline
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Join Date: Dec 2007
Location: Cape Cod MA
Posts: 1,000
Default Fresh 461 leaking coolant

Fired my 461 up over the weekend and it ran great no issues. I started it last night and pulled it out into the driveway and noticed a decent coolant leak, after inspection it was leaking at the coolant hose at the back of the head. I tightened that up and it seemed to stop but after firing it up to pull it back in the garage it has a slow steady drip off the back of the oil pan from the belhousing area. I can't see anything up there but its definitely not coming from the front of the engine and the top now seems dry, what are the chances the machine shop that installed the rear freezeplugs didnt seal them properly?I'm going to drain the coolant tonight and reseal both the drivers rear bypass plug and the passenger hose nipple just to be sure they arent the problem. If its still leaking im going to drain the oil and check it for coolant. I'm praying I can just pull the trans if the plug is leaking and replace in car as this thing was horrible to install. Kauffman highports on it as well so no head plugs.

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1969 GTO street strip project 11.1 forged 461, highport heads
1995 Trans-am 420 ci sb 14:1 compression 9"ford
9.89@132 1.34 60ft SOLD!
 


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