| Re: [GMCnet] Thorley & Remflex install ? [message #155101 is a reply to message #155094] |
Mon, 02 January 2012 12:17   |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma:
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Senior Member |
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Richard,
I do not know where you obtained the info. to torque the center to the
higher amount, but it should be the other way.
The 4 in line bolt pattern is the most critical. Leave the top center only snug.
The key is to re torque the other 4 after you drive it for 500-700
miles as they need to seat.Running the engine only is different than
driving it with load.
I do not dream up these procedure's, but acquire them from other shops
and from our customers, as they give us feedback and we also practice
these at our shop.
On Mon, Jan 2, 2012 at 8:35 AM, Craig Lechowicz
<craig.lechowicz@sbcglobal.net> wrote:
>
>
> Richard,
> I put my Thorley's on with the original thin gaskets. After a couple of years the drivers side went bad. I replaced that one side with a Jim K Remflex one earlier this year. I didn't put any sealer on, or any locks on. I've only got 500 miles or so on it since then, but so far, working great. I ran it about 1/2 hour and re-tightened once, very tight, with a short box end for the 4 bolts, and just snug on the center bolt. You can get a torque wrench in there, but it requires a lot of contortions, possibly a universal (which will destroy the accuracy of the readings) and is hard to read, so I didn't bother. The Remflex gasket seems pretty forgiving of mis-torquing. Their instructions say a low figure (maybe 15-20 ft. lbs.) vs. 35 or 40 for the Thorley instructions, but most people on this forum said to tighten the heck out of them, and that seems to be working for me.
> --
> Craig Lechowicz
> '77 Kingsley, Waterford, MI
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
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