D24T.com  

Go Back   D24T.com > Technical Discussion Area > Member Showroom > The Garage

Reply
 
Thread Tools Display Modes
  #31  
Old 09-18-2020, 11:48 AM
ngoma ngoma is offline
Supporting Member
 
Join Date: Nov 2009
Posts: 956
Default

Quote:
Originally Posted by anders View Post
...now Iím unsure if my leaking pump that I pulled is 180 off or not. Iím assuming it is as I usually keep the sprocket with the pump when I remove them from the engine.
I wonder if you can visually verify the pin/key slot mismatch when you have the cover off for the reseal? Might be too buried.
__________________
1985 744 gle d24t
1985 745 gle d24t
Reply With Quote
  #32  
Old 09-19-2020, 12:01 PM
v8volvo v8volvo is offline
Supporting Member
 
Join Date: Jun 2009
Location: Livingston, MT
Vehicle: '86 745, '83 764
Posts: 1,312
Default

Quote:
Originally Posted by anders View Post
I had to share the sprocket, the correct one is on the right.
Iím pretty sure the one on the left was modified because someone had built a pump with the cam plate 180 off., now Iím unsure if my leaking pump that I pulled is 180 off or not. Iím assuming it is as I usually keep the sprocket with the pump when I remove them from the engine.
If you look closely you can see the factory notch has a chip in it and the 180 notch looks factory, but itís actually cut deeper now that you compare a factory sprocket with it side by side. Crazy! I donít know how many needless hours I spent tracking non-issues because of that sprocket!
Crazy. That is a nasty trick, and everybody would have fallen for it -- why would you ever have expected there to be a second notch, after the first pump timed up just fine using that non-factory notch??

Never going to get back the time that part stole from you, I'd be pretty mad at the thing.

However, if it makes it any better, thinking about it now, I bet whoever put that notch in that sprocket suffered for a long time too before they figured out they built the pump itself 180 off. There's a long chain of misery attached to that sprocket now, everyone will be better off when it is melted down for scrap.
__________________
86 745 D24T/ZF 340k lifted 2.5"
83 764 D24T/M46 145k
04 Audi Allroad 6MT 2.0 TDI
01 Audi Allroad 6MT 2.7TT
Reply With Quote
  #33  
Old 09-21-2020, 08:55 PM
anders anders is offline
Supporting Member
 
Join Date: Jul 2010
Location: NW Washington USA
Posts: 825
Default

Quote:
Originally Posted by v8volvo View Post
However, if it makes it any better, thinking about it now, I bet whoever put that notch in that sprocket suffered for a long time too before they figured out they built the pump itself 180 off. There's a long chain of misery attached to that sprocket now, everyone will be better off when it is melted down for scrap.
Ha, I never even thought about how much time someone else spent and then finally just notching the sprocket 180*

Car is 99% done now though!
Attached Images
File Type: jpg C3343B1E-B1AE-4055-BD19-FC5117C2E9D6.jpg (22.1 KB, 8 views)
__________________
12mm pump heads, ARP stud kits and GTD nozzles available! http://d24t.com/showthread.php?t=1646
NA intake manifolds and 240 turbo pans for sale.
Need d24 or d24t parts? PM me!
Shipments done on fridays!

1982 242 D24+T/M46- Super pumped! Build thread:
http://www.d24t.com/showthread.php?t=1545
1984 764 D24T/ZF build thread: http://www.d24t.com/showthread.php?t=1734
Diesel parts cars: 82 244,83 244, 84 244, 84 245, 85 745
Reply With Quote
  #34  
Old 09-21-2020, 09:04 PM
anders anders is offline
Supporting Member
 
Join Date: Jul 2010
Location: NW Washington USA
Posts: 825
Default First drive oil powered!

I put 50 miles on it, all went well, yay! No leaks discovered, engine runs nice like it should, very quite too when using the D24 exhaust, it might be too restrictive though. Rear end gearing is low, I discovered that this car was originally an automatic ( ugly hole drilled in firewall for clutch cable) so it probably has 3.91 gears in it which I think are too low for the m46 OD of .82. But overall it drives decent and has decent power (itís been awhile since I have driven a non modded out d24t).
Attached Images
File Type: jpg 2470FD4E-8C1F-4040-A222-E454114AC56C.jpg (23.5 KB, 11 views)
__________________
12mm pump heads, ARP stud kits and GTD nozzles available! http://d24t.com/showthread.php?t=1646
NA intake manifolds and 240 turbo pans for sale.
Need d24 or d24t parts? PM me!
Shipments done on fridays!

1982 242 D24+T/M46- Super pumped! Build thread:
http://www.d24t.com/showthread.php?t=1545
1984 764 D24T/ZF build thread: http://www.d24t.com/showthread.php?t=1734
Diesel parts cars: 82 244,83 244, 84 244, 84 245, 85 745
Reply With Quote
  #35  
Old 09-22-2020, 12:09 PM
ngoma ngoma is offline
Supporting Member
 
Join Date: Nov 2009
Posts: 956
Default

Didn't the factory M46 get 3:54 or 3:31 final drive ratio?

What kind of hose did you use for the VC breather?
__________________
1985 744 gle d24t
1985 745 gle d24t
Reply With Quote
  #36  
Old 09-26-2020, 09:39 AM
v8volvo v8volvo is offline
Supporting Member
 
Join Date: Jun 2009
Location: Livingston, MT
Vehicle: '86 745, '83 764
Posts: 1,312
Default

The extra short M46 first gear must be even more pointless than usual with the 3.91 axle, it's barely useful even with the 3.54. Nice setup for towing though maybe.

I believe regular 240 M46 cars had a 3.31 rear axle and diesels with M46 had 3.54 (both for 200 and 700). Probably wouldn't be hard to swap a different axle in someday as the 3.31 ones I assume are plentiful.

Or the owner could keep the current axle ratio, raise the suspension, and put on a set of big AT tires -- then the short gearing might be a benefit!

Sharp looking engine bay, nice color choices.
__________________
86 745 D24T/ZF 340k lifted 2.5"
83 764 D24T/M46 145k
04 Audi Allroad 6MT 2.0 TDI
01 Audi Allroad 6MT 2.7TT
Reply With Quote
  #37  
Old 09-27-2020, 04:35 AM
barkster1971 barkster1971 is offline
Junior Member
 
Join Date: May 2019
Location: Swineshead
Vehicle: 760gle turbo diesel
Posts: 15
Default m90

An m90 gearbox is a massive improvement over the m46. I do miss the OD green light on the dash though!
Reply With Quote
  #38  
Old 09-27-2020, 08:34 PM
RedArrow RedArrow is offline
Senior Member
 
Join Date: Jan 2013
Location: NY
Vehicle: 740
Posts: 775
Default

Wire it up to the highest gear or the headlights
Reply With Quote
  #39  
Old 11-25-2020, 08:07 PM
anders anders is offline
Supporting Member
 
Join Date: Jul 2010
Location: NW Washington USA
Posts: 825
Default

Quote:
Originally Posted by v8volvo View Post
The extra short M46 first gear must be even more pointless than usual with the 3.91 axle, it's barely useful even with the 3.54. Nice setup for towing though maybe.

I believe regular 240 M46 cars had a 3.31 rear axle and diesels with M46 had 3.54 (both for 200 and 700). Probably wouldn't be hard to swap a different axle in someday as the 3.31 ones I assume are plentiful.

Or the owner could keep the current axle ratio, raise the suspension, and put on a set of big AT tires -- then the short gearing might be a benefit!

Sharp looking engine bay, nice color choices.
Well the rear end is 3.73, so not as terrible as a 3.91 gear set. So the owner and I came up with the decision to leave the current rear end in it and install larger tires.

I built some lift blocks from 2.5Ēx .250Ē square tube. Worked out well.
Attached Images
File Type: jpg B32DFEB8-9C6E-42AF-A372-D009C27CCB5E.jpg (17.9 KB, 3 views)
__________________
12mm pump heads, ARP stud kits and GTD nozzles available! http://d24t.com/showthread.php?t=1646
NA intake manifolds and 240 turbo pans for sale.
Need d24 or d24t parts? PM me!
Shipments done on fridays!

1982 242 D24+T/M46- Super pumped! Build thread:
http://www.d24t.com/showthread.php?t=1545
1984 764 D24T/ZF build thread: http://www.d24t.com/showthread.php?t=1734
Diesel parts cars: 82 244,83 244, 84 244, 84 245, 85 745
Reply With Quote
  #40  
Old 11-26-2020, 12:35 PM
v8volvo v8volvo is offline
Supporting Member
 
Join Date: Jun 2009
Location: Livingston, MT
Vehicle: '86 745, '83 764
Posts: 1,312
Default

Nice, sounds like the right call. I ended up going the same way with my 745 which does have the 3.91 rear. It did help bring the revs and noise down (although with speedo error of course) at freeway speeds.

How does the car overall look now with the taller suspension and tires?
__________________
86 745 D24T/ZF 340k lifted 2.5"
83 764 D24T/M46 145k
04 Audi Allroad 6MT 2.0 TDI
01 Audi Allroad 6MT 2.7TT
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 Off

Forum Jump


All times are GMT -8. The time now is 09:49 PM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2020, vBulletin Solutions, Inc.