760 V6 to B230FK

360beast · Oct 28th, 2020, 20:54

Hi all

So I've sold a 1989 760 GLE with 233k miles and blown headgaskets to a customer. They have asked me to convert it to a B230FK and an M90 gearbox... so it begins.

I just so happened to have an M90L conversion kit in my garage from a 1995 940 I found in a scrapyard.

Customer has bought a B230FK that's done 130k miles which is being pallet delivered to mine in the next couple of weeks.

He has ordered an LH2.4 dogdish flywheel that has been resurfaced already.

760 2.3 turbo m90 conversion by Luke Ryland - Flickr2BBcode LITE

M90 support bearing from retro turbo

760 2.3 turbo m90 conversion by Luke Ryland - Flickr2BBcode LITE

New SKF clutch release bearing and flywheel bolts arrived this morning (thanks Dai).

760 2.3 turbo m90 conversion by Luke Ryland - Flickr2BBcode LITE

I've got a crossmember with engine mounts to fit so hopefully it won't take too long.

First things first though is to finish stripping the 940 breaker down to get the shell scrapped and out of my way.

Laird Scooby · Oct 28th, 2020, 23:44

Don't forget the loom from the 940 (LH2.4) Luke as you'll probably have to do some swapping around for the B230 as i'm fairly sure the pinouts are a little different. I'll try and check for you some time tomorrow.

There may also be a hiccup with the idle speed after a run, the 760 uses a 96 tooth reluctor ring in the back axle and front hubs for the ABS and speedo drive. Non-ABS models only have a 12 tooth reluctor ring in the back axle.

The 940 uses 48 tooth rings with no speed divider for the speedo. The 760 has a divide by 8 counter to drive the speedo that would normally expect 12 pulses if it's a non-ABS model. In non-ABS models, there is no divide by 8 counter aka speed converter.

The 940 ECU uses a speed input to help with engine braking etc and idle speed on overrun etc so it may get confused!

360beast · Oct 29th, 2020, 06:16

Don't worry Dave I've thought of that already.

I've got 3 940 axles, 2 lh2.4 wiring looms and the engine is coming with another one and the ECU's. I have an early and late set of gauges from a 940 and the complete ABS etup with 3 lots of 940 struts so I will probably be swapping the lot over.

I'll have to whatsapp you about it later on when I get to it.

360beast · Oct 29th, 2020, 19:06

20201029_190343 by Luke Ryland - Flickr2BBcode LITE

20201029_190413 by Luke Ryland - Flickr2BBcode LITE

At some point it has had a dark grey 960 tailgate fitted and Auriga alloys but still has the original 15" wheel in the boot.

griston64 · Oct 29th, 2020, 19:26

Quote:

Originally Posted by 360beast

20201029_190343 by Luke Ryland - Flickr2BBcode LITE

20201029_190413 by Luke Ryland - Flickr2BBcode LITE

At some point it has had a dark grey 960 tailgate fitted and Auriga alloys but still has the original 15" wheel in the boot.

Looks nice Luke. Will be soooo much better with a proper engine in it as well

:

Cromlech · Oct 29th, 2020, 19:30

Lovely jubbly! So glad that you are bringing her back to life! 😎

360beast · Oct 29th, 2020, 20:07

Quote:

Originally Posted by griston64

Looks nice Luke. Will be soooo much better with a proper engine in it as well

:

😂 and a proper gearbox!

Quote:

Originally Posted by Cromlech

Lovely jubbly! So glad that you are bringing her back to life! 😎

It would be an absolute waste to break it, glad I found a good home for it!

classicswede · Oct 29th, 2020, 20:18

Quote:

Originally Posted by 360beast

Don't worry Dave I've thought of that already.

I've got 3 940 axles, 2 lh2.4 wiring looms and the engine is coming with another one and the ECU's. I have an early and late set of gauges from a 940 and the complete ABS etup with 3 lots of 940 struts so I will probably be swapping the lot over.

I'll have to whatsapp you about it later on when I get to it.

You will be creating a lot of work doing a loom swap. Dash connectins, window motors etc all changed.

By far the best bet is just use what you need for the turbo engine

360beast · Oct 29th, 2020, 20:26

Quote:

Originally Posted by classicswede

You will be creating a lot of work doing a loom swap. Dash connectins, window motors etc all changed.

By far the best bet is just use what you need for the turbo engine

That's the plan, I will have to pull the dash out to feed the LH2.4 loom in behind the dash.

The abs swap and axle swap will be to get the speedo working and the idle control valve as it wants to see the car stationary to set the idle and gets this feed from the diff speed sensor I believe.

360beast · Nov 7th, 2020, 14:24

20201104_091138 by Luke Ryland - Flickr2BBcode LITE

That's the rot box taken care of, now to clear the garage out and get started!

Oct 28th, 2020, 20:54	#1
360beast Go redblock or go home Last Online: Yesterday 22:21 Join Date: Feb 2012 Location: UK	760 V6 to B230FK Hi all So I've sold a 1989 760 GLE with 233k miles and blown headgaskets to a customer. They have asked me to convert it to a B230FK and an M90 gearbox... so it begins. I just so happened to have an M90L conversion kit in my garage from a 1995 940 I found in a scrapyard. Customer has bought a B230FK that's done 130k miles which is being pallet delivered to mine in the next couple of weeks. He has ordered an LH2.4 dogdish flywheel that has been resurfaced already. 760 2.3 turbo m90 conversion by Luke Ryland - Flickr2BBcode LITE M90 support bearing from retro turbo 760 2.3 turbo m90 conversion by Luke Ryland - Flickr2BBcode LITE New SKF clutch release bearing and flywheel bolts arrived this morning (thanks Dai). 760 2.3 turbo m90 conversion by Luke Ryland - Flickr2BBcode LITE I've got a crossmember with engine mounts to fit so hopefully it won't take too long. First things first though is to finish stripping the 940 breaker down to get the shell scrapped and out of my way.

Oct 28th, 2020, 23:44	#2
Laird Scooby Premier Member Last Online: Yesterday 21:06 Join Date: May 2012 Location: Lakenheath	Don't forget the loom from the 940 (LH2.4) Luke as you'll probably have to do some swapping around for the B230 as i'm fairly sure the pinouts are a little different. I'll try and check for you some time tomorrow. There may also be a hiccup with the idle speed after a run, the 760 uses a 96 tooth reluctor ring in the back axle and front hubs for the ABS and speedo drive. Non-ABS models only have a 12 tooth reluctor ring in the back axle. The 940 uses 48 tooth rings with no speed divider for the speedo. The 760 has a divide by 8 counter to drive the speedo that would normally expect 12 pulses if it's a non-ABS model. In non-ABS models, there is no divide by 8 counter aka speed converter. The 940 ECU uses a speed input to help with engine braking etc and idle speed on overrun etc so it may get confused! __________________ Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........

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Oct 29th, 2020, 06:16	#3
360beast Go redblock or go home Last Online: Yesterday 22:21 Join Date: Feb 2012 Location: UK	Don't worry Dave I've thought of that already. I've got 3 940 axles, 2 lh2.4 wiring looms and the engine is coming with another one and the ECU's. I have an early and late set of gauges from a 940 and the complete ABS etup with 3 lots of 940 struts so I will probably be swapping the lot over. I'll have to whatsapp you about it later on when I get to it.

Oct 29th, 2020, 19:06	#4
360beast Go redblock or go home Last Online: Yesterday 22:21 Join Date: Feb 2012 Location: UK	20201029_190343 by Luke Ryland - Flickr2BBcode LITE 20201029_190413 by Luke Ryland - Flickr2BBcode LITE At some point it has had a dark grey 960 tailgate fitted and Auriga alloys but still has the original 15" wheel in the boot.

Oct 29th, 2020, 19:30	#6
Cromlech Member Last Online: Apr 7th, 2024 09:08 Join Date: Jan 2014 Location: Gloucester	Lovely jubbly! So glad that you are bringing her back to life! 😎

Nov 7th, 2020, 14:24	#10
360beast Go redblock or go home Last Online: Yesterday 22:21 Join Date: Feb 2012 Location: UK	20201104_091138 by Luke Ryland - Flickr2BBcode LITE That's the rot box taken care of, now to clear the garage out and get started!

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