PDA

View Full Version : Damper plate torque specs


xtnkshun
08-26-2012, 03:13 PM
Anybody out there know what the torque specs on the damper plate screws are for a 351/powerslot? I read on another thread that it was 35 ft/pounds but that already snapped 1 bolt. Is that correct?

Cloaked
08-26-2012, 03:48 PM
Anybody out there know what the torque specs on the damper plate screws are for a 351/powerslot? I read on another thread that it was 35 ft/pounds but that already snapped 1 bolt. Is that correct?What to what?

Pump to adaptor plate? Adaptor to case? Are these 5/16" x 1-1/2" hex head bolts or 3/8" x 1-1/4" 12 point cap screws?

And which model tranny?

I have a service manual but the tightwads here won't allow a 33 meg file to be posted....

PM me an email address...
........................

xtnkshun
08-26-2012, 04:09 PM
Damper plate to flywheel. They are 5/16 x 3/4 hex head bolts. PM'ing now.

Cloaked
08-26-2012, 05:54 PM
Damper plate to flywheel. They are 5/16 x 3/4 hex head bolts. PM'ing now.
I cleared out a place in my PM inbox.

This manual is for models 70C & 71C

If you don't see the specs in there (which I do not for the 3/4' long bolt), I'd tighten snug with an additional pinch and live with it. Or I'd consider a consistent lesser value, say 15 -17 ft-lbs. Thirty five is a lot on that bolt.

Also take a look here ==> http://www.mastercraft.com/teamtalk/showpost.php?p=633089&postcount=1

xtnkshun
08-26-2012, 07:08 PM
I cleared out a place in my PM inbox.

This manual is for models 70C & 71C

If you don't see the specs in there (which I do not for the 3/4' long bolt), I'd tighten snug with an additional pinch and live with it. Or I'd consider a consistent lesser value, say 15 -17 ft-lbs. Thirty five is a lot on that bolt.

Also take a look here ==> http://www.mastercraft.com/teamtalk/showpost.php?p=633089&postcount=1

Thanks cloaked. I have a manual for 71C & 72C and I didn't see it in there either.

These are the bolts. I actually went up to lowes to see if I could get a replacement. They didnt have shouldered bolts and the size of the bolt was in between 3/4 and 1 long. 35ft/lb broke the grade 8 replacement also.

http://www.skidim.com/prodinfo.asp?number=R009001

At that point I figured 35 was either too high or my torque wrench was way out.

And yes, that is $5 a piece for the bolt :)

Cloaked
08-26-2012, 07:17 PM
Thanks cloaked. I have a manual for 71C & 72C and I didn't see it in there either.

These are the bolts. I actually went up to lowes to see if I could get a replacement. They didnt have shouldered bolts and the size of the bolt was in between 3/4 and 1 long. 35ft/lb broke the grade 8 replacement also.

http://www.skidim.com/prodinfo.asp?number=R009001

At that point I figured 35 was either too high or my torque wrench was way out.

And yes, that is $5 a piece for the bolt :)Appears to have been machined to that special need, thus the $5 each. Some things you just have to bite the bullet and spring for the product.

Keep up the good work. Consider new clutch plates while you have it apart.

xtnkshun
08-26-2012, 07:21 PM
Yeah...another skidim order this week!

Here is the rest of the progress. Thanks for motivation!!

http://www.mastercraft.com/teamtalk/showthread.php?t=50139

Cloaked
08-26-2012, 07:33 PM
Yeah...another skidim order this week!

Here is the rest of the progress. Thanks for motivation!!

http://www.mastercraft.com/teamtalk/showthread.php?t=50139I have been reading in that thread too. You're doing well.

I bought my first MC new, in 1979. Been doing the MC thing ever since. Learned just like you have been learning... :D

.

xtnkshun
08-26-2012, 07:41 PM
It's been fun bringing her back to glory. A little frustrating at points cause I am missing days on the lake with my family, but I know its necessary. Fortunately, Florida has a pretty long summer.

And I can not adequately express my appreciation to you and all the other TT'ers for the guidance/knowledge. Amazing!!