home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 05-23-2021, 12:13 PM   #1
voetganger
Newbie
 
Join Date: Mar 2020
Default AW71 torque converter bolts

Hi,
Does anyone know what bolts are used to attach an AW71 torque converter to redblock flexplate? Seems to be M10 but not the regular thread. Cant seem to find it on here.

kind regards,
voetganger is offline   Reply With Quote
Old 05-23-2021, 06:12 PM   #2
MasterBlaster
Board Member
 
MasterBlaster's Avatar
 
Join Date: Feb 2009
Location: Port Coquitlam
Default

Should be part 974589

Skandix cross-references to 985485 = 1034164
https://www.skandix.de/en/spare-part...w-m10/1034164/
M10 x 13 flanged bolt.




Another site calls it a
"Flensbout Volvo M10 x 13MM (fijne draad)"
https://www.estateservices.nl/flensbout-m10-x-13.html
(Wrong picture not included)

English translation says "Pay attention to fine thread".
That usually means 10x1.25, not 10x1.5.

Neither says what strength grade it is (8.9 / 9.9 / 10.9).
Also fits AW70, but I'm not taking out my trans to look.
__________________




1990 740GL
521,000 km so far...
MasterBlaster is offline   Reply With Quote
Old 05-24-2021, 05:04 AM   #3
voetganger
Newbie
 
Join Date: Mar 2020
Default

Thanks!! Indeed seems to be finer thread than m10x1,5. To install the flexplate Volvo says strength grade 12.9 is to be used, so i guess these will also be 12.9
voetganger is offline   Reply With Quote
Old 05-25-2021, 08:47 PM   #4
dl242gt
My car is fun hp club
 
dl242gt's Avatar
 
Join Date: Jun 2002
Location: S NJ, a suburb of Phila.
Default

As the bolts get larger with metric hardware the fine thread version is usually a thread pitch that is one or two steps down from usual threads. So for example a usual 8mm bolt is 1.25 thread. A fine thread version would be 8mm 1.0 thread.

So your fine thread 10mm bolt probably has something like 1.0 thread pitch for a fine threaded fastener.
__________________
Dave,
1982 242 turbo. 338k miles. MVP coilovers and 3" exhaust. Flowed 405 with a V15. Cossie turbine housing with upgraded compressor housing. 90+, IPD remote oil filter. Some other goodness, too. Been lots of fun over 25 years. Restored in 2k. Now ready for a 2nd restoration.

1993 245 Classic, 435k miles, enem V15. IPD bars and chassis braces. Simons sport exhaust from Scandix. sbabbs ezk chip. Been a good road warrior. Genuine Volvo rebuilt leaky M47.
dl242gt is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 08:42 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.