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Torque specs for 1985 rx7 bee hive oil cooler?

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Old 02-16-18, 09:35 PM
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Torque specs for 1985 rx7 bee hive oil cooler?

i need to replace o’rings on the bee hive oil cooler on a 1985 Rx-7. Does anybody know where I can find that information?
Old 02-16-18, 10:23 PM
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Didn't expect it to be this hard, I checked my Haynes manual and 2 other shop manuals. Nothing
Old 02-16-18, 10:57 PM
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not sure the size but probable metric. any hardware store/automotive parts store that carries O-rings should have what u need. just take an old one with u or they can match one up to the bottom side of the cooler.
Old 02-17-18, 11:47 AM
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I think he is asking for where to find the torque spec, not the O-rings. Torque is normally figured according to the size and hardness (grade) of the fastener, not the part which the fastener is assembling. I've never had a beehive, only a FMOC. Guessing that the bolts are 6mm x 1.00 pitch. They should be a standard grade of 8.8 hardness or possibly a softer 4.8, since they thread into the rear iron which is a cast part and not as strong.
Check out this table:
https://www.swtc.edu/Ag_Power/diesel...e%20values.pdf

A 6mm fastener could be btw 3.5 - 6.5 ft-lbs depending on grade and assembled wet or dry. A "lubricated" torque means that you apply never seize, grease or a light oil on the threads / under the head.
Old 02-20-18, 07:30 PM
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I tightened mine to one quarter of a grunt and it doesn't leak. Make sure to do all 4 o-rings (there's two where the assembly mounts to the engine and two between the pieces of the cooler itself; you'll see the bolts when you take it off).
Old 02-21-18, 05:33 AM
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Originally Posted by MM54
I tightened mine to one quarter of a grunt and it doesn't leak.
Is that anything like German torque, Gutentight?
Old 02-21-18, 05:12 PM
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Originally Posted by Banzai
Is that anything like German torque, Gutentight?


The trick is to make a clicking noise with your mouth when you finish tightening it - it tricks the bolts into thinking you've used a torque wrench (they don't have eyes to see it was just a ratchet!)
Old 02-22-18, 01:51 PM
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Originally Posted by MM54


The trick is to make a clicking noise with your mouth when you finish tightening it - it tricks the bolts into thinking you've used a torque wrench (they don't have eyes to see it was just a ratchet!)
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