RE: Coolant leak

[Herb <zephyr9900@xxxxxxxxxxx>]

Put studs in the four outside or end holes. Bolts strip easily and tend to
leak as you found out. I would put some sealant on each stud also if you
choose to install them! I hope you did not but if you did strip the hole,
use heavy grease packed around the bit and the tap, drilling & taping the
hole. Drill slow and tap slow and the grease should capture the shavings.
After drilling & taping run water through rinsing the residual shavings out
of the hole if you leave the heads on. The best way to drill & tap the heads
for a heli coil, is off the engine. That way you know their are no shavings
flowing around in the cooling system. Just my suggestion. 
 
Herb 
 
1963 Fury 2D/HT ? Yet 
1963 Sport Fury Convertible 361 
1970 Challenger RT 440 
1999 Durango SLT 5.9 
2006 300-C Heritage 5.7 
2008 SRT-8 Magnum 6.1 
St. Louis, MO. 


-------Original Message------- 
 
From: Paul Lennemann 
Date: 08/25/08 22:01:14 
To: 1962to1965mopars@xxxxxxxxxx 
Subject: coolant leak 
 
 
Tonight I worked on some of the bugs that showed up after getting the 
Engine in yesterday. One of the problems was a couple of coolant leaks 
>From the exhaust header bolts. I was using bolts that were 1 1/2" long. 
On a couple of the holes they bottomed out before getting tight. So I 
Got some shorter bolts and started with the last one on the back of the 
Left head which had been leaking. I found out that there are only @ 
1/2" or so of good threads as the shorter one would "strip out" when you 
Started to get them tight. So I went back to the longer bolt which seems 
Not to be too long in this case. I slathered it up good with thread 
Sealant and crossed my fingers. If this continues to leak what are my 
Options, heli coil or???? And if it needs a heli coil can that be done 
With the head on the motor, or does it need to come off? 
Paul L. 
'63 Sport Fury 
440/727 
http://www.1962to1965mopar.ornocar.org/ml-lennemann63.html 
 


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