View Single Post
irobertson irobertson is offline
Registered
 
irobertson's Avatar
 
Join Date: Jan 2009
Location: Brockville, Ontario
Posts: 234
Garage
ARP rod bolt question?

I have begun reassembling my 3.2.

I installed the rods on the crank this evening.
I'm using ARP rod bolts and I measured the bolt stretch as recommended, and I also kept track of the torque while I was bringing the bolts to the correct stretched length.
In lieu of stretch measurement, ARP states 40 foot pounds.
I'm surprised at the variance in the torque required to get the correct stretch.
I used the supplied lube and I measured with a micrometer.
Curious if anyone else has experienced this?
Are these numbers out of whack?

Here are the results:
Torque Stretch
42 0.0100
38 0.0102
50 0.0104
48 0.0100
45 0.0099
52 0.0101
41 0.0103
40 0.0105
50 0.0099
45 0.0101
43 0.0104
44 0.0101
__________________
'88 sunroof delete Coupe in Venetian Blue (back on the road Wooo!)
'11 Cayenne Manual, as in it has a clutch :-) (daily driver)
'97 BMW Z3 (wife's ride)
Old 04-06-2013, 08:02 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)