When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
2025 C2 of the Year ('64-'66) Finalist - Unmodified
2021 C2 of the Year Finalist - Unmodified
2019 C2 of Year Finalist (stock)
2016 C2 of Year Finalist
I think we all feel that tight is good, and tighter is better. (WRONG). I just try to go tight so nothing is leaking, and then retighten a tad (by feel) to stop a leak. Should never have to use a torque wrench or breaker bar on a clamp!
Last edited by Redbird; Apr 29, 2012 at 11:32 AM.
Reason: add a word
From: Putnam Valley, New York. Amateur Radio Operator K2NS
Wittek Clamp Torque Spec.
I just looked at my 67 assembly manual, and in section 6, page B1, it gives the torque spec of 12-18 inch pounds. I don't know if the repro clamps can take this, as they are quite a bit thinner than the originals. If you're using repro clamps, I would shoot for the low end---8-12 inch pounds, and hold the tower with a wrench to keep it from twisting. If it leaks, I guess you would have to tighten it a little more. I just tighten them until they feel snug enough, and keep my fingers crossed that they do not leak..
From: Putnam Valley, New York. Amateur Radio Operator K2NS
Silicone Glue and Silicone Grease
Originally Posted by Chuck Gongloff
I put a THIN layer of black RTV silicon "goo" inside the radiator hoses, heater hoses, etc. before I slip them over the nipples.
I just put some of the RTV on the end of my finger and smear it in there. If my finger won't fit, I use a flat blade screwdriver like a spatula.
Then, I GINGERLY tighten the tower clamps. I just snug them up.
I figure that the RTV will take care of any minute "details".
Been doing it this way for years and have never had a leak. Makes the hoses easier to slide on too.
Chuck
That will work, but it makes getting those hoses off quite impossible. I can see doing that at the engine end of the radiator & heater hoses, but not at the other end. I do the opposite---I put silicone grease at the ends of all the hoses. It won't seal any leaks, but it makes them very easy to get off when the time comes---and I've had no leaks, and best of all, no broken heater core nipples. The tower clamps and Corbin clamps keep enough tension on the hoses to keep them dry.