home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 03-19-2019, 07:18 PM   #1
poulrais
Board Member
 
poulrais's Avatar
 
Join Date: Sep 2006
Location: Quebec, CAN
Default Pinion gear question

Is a pinion gear the same between a 240 and a 740? A guy I know bought a 3.31 gear with the pinion and he notices that the pinion is different from his 740's.

The spline on the 240's is longer and the tips seems smaller. Could he use a 240 driveshaft flange with that pinion? The 240's is on the left:
Attached Images
File Type: jpg 331_Spline.jpg (74.1 KB, 78 views)
__________________


1990, Volvo 740 16v +T
1991, Volvo 745T 16V - crushed
build thread: http://forums.turbobricks.com/showthread.php?t=249553
poulrais is offline   Reply With Quote
Old 03-20-2019, 08:56 AM   #2
poulrais
Board Member
 
poulrais's Avatar
 
Join Date: Sep 2006
Location: Quebec, CAN
Default

Any suggestions?
poulrais is offline   Reply With Quote
Old 03-20-2019, 09:24 AM   #3
VB242
OG flat plane crank
 
VB242's Avatar
 
Join Date: Sep 2011
Location: Virginia Beach
Default

Difference between 1030 and 1031 diffs? I don't think they're interchangable.
__________________
Me for President

First candidacy driven entirely by smart phone.

Campaign slogan
"Trump, I wouldn't piss on him if he were on fire!"
VB242 is offline   Reply With Quote
Old 03-20-2019, 10:18 AM   #4
poulrais
Board Member
 
poulrais's Avatar
 
Join Date: Sep 2006
Location: Quebec, CAN
Default

Quote:
Originally Posted by VB242 View Post
Difference between 1030 and 1031 diffs? I don't think they're interchangable.
Well the pinions are dimensionally the same (length wise) but different from the spline part up to the end tip.

I will ask him what diff this gear and pinion was taken off from.
poulrais is offline   Reply With Quote
Old 03-20-2019, 12:35 PM   #5
gsellstr
Vintage anti-ricer
 
gsellstr's Avatar
 
Join Date: Oct 2004
Location: Somewhere in a northern California smog bank
Default

Also the 1030 uses a normal outer pinion bearing, the 1031 and 1041 have a larger outer bearing.
__________________
RIP
Doug Williams "Mr. Doug" 4/15/2009
Pete Fluitman "fivehundred" 7/14/2013
Mick Starkey "TrickMick" 1/10/14
Mark Baldwin "blue850t5" 7/19/18
Nick Fengler "fengler" 8/6/18
Thomas Fritz "stealthfti" 10/11/18


74 144 B20
http://forums.turbobricks.com/showthread.php?t=224983

90 745Ti
http://forums.turbobricks.com/showthread.php?t=334698

If you need Superpro bushings PM me for price and availability!
gsellstr is offline   Reply With Quote
Old 03-20-2019, 03:40 PM   #6
GTJordan
Been here for too long
 
GTJordan's Avatar
 
Join Date: Jul 2002
Location: Edmonton AB
Default

I ran into something similar. I got a 4.10 from Kjets. It all went together fine until I tried to put the pinion flange on. It is a specific flange for the pinion you have on the right. Gary ended up finding me one in the JY. What a hassle. I hope you have the pinion flange. (I did put that pinion from a 740 into a 1031 240 housing no problem)

Jordan
__________________
80 242- 2.5L 16V, NIW intake/exhaust, T5, Porsche brakes, short billies and Kaplenkhe suspension, Trutrack.
Project Thread- http://www.turbobricks.com/forums/sh...d.php?t=324470
GTJordan is offline   Reply With Quote
Old 03-20-2019, 07:27 PM   #7
poulrais
Board Member
 
poulrais's Avatar
 
Join Date: Sep 2006
Location: Quebec, CAN
Default

Quote:
Originally Posted by GTJordan View Post
I ran into something similar. I got a 4.10 from Kjets. It all went together fine until I tried to put the pinion flange on. It is a specific flange for the pinion you have on the right. Gary ended up finding me one in the JY. What a hassle. I hope you have the pinion flange. (I did put that pinion from a 740 into a 1031 240 housing no problem)

Jordan
The 3.31 pinion gear is on the left of the picture...
poulrais is offline   Reply With Quote
Old 03-20-2019, 08:04 PM   #8
gsellstr
Vintage anti-ricer
 
gsellstr's Avatar
 
Join Date: Oct 2004
Location: Somewhere in a northern California smog bank
Default

Forgot about that Jordan, good point. The nut sits deeper into the flange for the gearset on the right.
gsellstr is offline   Reply With Quote
Old 03-21-2019, 09:47 AM   #9
CAPT_BLOTTO
#Crush It
 
CAPT_BLOTTO's Avatar
 
Join Date: Jul 2005
Location: Kansas City
Default

I have like 4 or 5 different gear sets all from 240s and I've seen those differences in the splines.
__________________
Hello My Glorious!

Junkyard Parts request thread!
Mesquite FB page! Constant updates!

Da Yellow Sold | $800 245 | 77 244
CAPT_BLOTTO 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 09:41 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.