As a FYI to those that give a rats about torque specs on suspension parts, the '99-00 FSM has an incorrect ft-lbs spec listed for the Rear LCA Long-bolt. Rear Suspension section shows 63-74 Nm (63-73 ft-lbs). Under the Rear Axle section the correct spec is given 63-74 Nm (47-54 ft-lbs).
#1
Posted 05-01-2018 08:57 AM
- lillyweld and BNaumann like this
Chris
Happiness is a dry martini and a good woman ... or a bad woman.
- George Burns
#2
Posted 05-01-2018 09:53 AM
Hmmm...that bolt is my long wrench as hard as I can pull! Do you think I stretch it
- William Keeling likes this
Ron
RAmotorsports
#3
Posted 05-01-2018 10:28 AM
Hmmm...that bolt is my long wrench as hard as I can pull! Do you think I stretch it
Depends how old you are and how long the wrench is.
#4
Posted 05-03-2018 07:43 AM
i use about 5 lugga-duggas
Gordon Kuhnley: Driving miata's in all conditions, courses, and motorsports that I can.
#5
Posted 05-03-2018 09:09 AM
As a FYI to those that give a rats about torque specs on suspension parts, the '99-00 FSM has an incorrect ft-lbs spec listed for the Rear LCA Long-bolt. Rear Suspension section shows 63-74 Nm (63-73 ft-lbs). Under the Rear Axle section the correct spec is given 63-74 Nm (47-54 ft-lbs).
Could it be that the correct torque is 63-73 ft pounds and that the NM is in error?. I guess what I'm saying is that is a pretty substantial bolt and I think I would rather torque it a 70 Ft pounds vs 50 Ft Pounds.
#6
Posted 05-03-2018 09:21 AM
2 grunts for these, 3 for the LCA cam bolts...
- Ron Alan likes this
Steven Holloway
Artist formerly known as Chief Whipping Boy for Lone Star Region
#7
Posted 05-03-2018 11:47 AM
There are 2 different bolts. 100% interchangeable except one is fine thread and the other is coarse thread. Probably the corrected torque setting got changed in one place and not the other.
Dave Wheeler
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#8
Posted 05-03-2018 12:36 PM
Could it be that the correct torque is 63-73 ft pounds and that the NM is in error?. I guess what I'm saying is that is a pretty substantial bolt and I think I would rather torque it a 70 Ft pounds vs 50 Ft Pounds.
The bolt is substantial, but it steps down for the threaded portion. Since the same Nm spec was mentioned in two separate sections for the bolt and the spec seemed to roughly match other bolts of that size (threaded area), I'm assuming it's the correct number.
Chris
Happiness is a dry martini and a good woman ... or a bad woman.
- George Burns
#9
Posted 05-03-2018 01:50 PM
There are 2 different bolts. 100% interchangeable except one is fine thread and the other is coarse thread. Probably the corrected torque setting got changed in one place and not the other.
The bolt is substantial, but it steps down for the threaded portion. Since the same Nm spec was mentioned in two separate sections for the bolt and the spec seemed to roughly match other bolts of that size (threaded area), I'm assuming it's the correct number.
Intestesting...that might explain why when I ordered a replacement bolt/ spare that the nut I had that I thought should fit it, did not. I just thought I had misplaced the correct one.
#10
Posted 05-03-2018 02:53 PM
I believe that nut is also one of those "pinched" lock-nuts that you should only be able to finger tighten a few turns before you feel resistance.
Didn't know the bolt was offered with differing thread pitches. I'd suspect it's year specific, but length is the same, so they're interchangeable in that regard.
Chris
Happiness is a dry martini and a good woman ... or a bad woman.
- George Burns
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