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Old 10-13-2018, 01:47 PM   #1
brendon_ak
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Default R-Sport Gauge Install, Wiring?

Hey All,

I'm going to attempt to install a R-Sport cluster I picked up at IPD last year into my 1979 245. I've read a couple install threads and it sounds like there may or may not be a repin of one of the connectors. What I'm curious about is I think someone made some "mods" with this cluster and it might not "just plug in"


Anyone have input on installing one of these clusters?
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Old 10-13-2018, 02:28 PM   #2
hiperfauto
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Here are the installation instructions.

http://www.240.se/litteratur/514100.pdf

I think the only time you need to re-pin the connector is if you're using a 140 cluster in a 240 or vice versa. Is there a part number on one of the large gauges? It should be on a sticker like this.



Here's the catalog page with part numbers.

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Old 10-13-2018, 03:24 PM   #3
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I don't have a part number on mine. Looks like I need a different oil pressure sensor? Any ideas on the extra wires coming out the back of the cluster on mine?
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Old 10-13-2018, 04:25 PM   #4
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How many wires do you have? There should be 6. A ground for the dash lights and one for the gauges, power for the gauges from fuse 3, power to the dash lights from fuse 12, a connection to the tach from the coil (-) terminal and a connection to the oil pressure sender.

Yes, you need a 10 bar oil pressure sender and an elbow so the sender doesn't hit the alternator. If you have a B230 you'll also need an adapter.

What is the 'W' number on the back or side of the speedo?
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Old 10-13-2018, 06:12 PM   #5
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Here's all that's on the back of the speedo


Indeed I have 6 wires, good info, thanks. I have a b230ft so I guess I need those three things. I already have a tach, do I get rid of the current wire going to that?
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Old 10-13-2018, 07:00 PM   #6
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You can connect the wire that's currently going to your tach to the R-Sport tach. Just remove the black wire that's on there now and connect it to that terminal.

The 'W' number is probably on the side of the gauge. It may not be visible without turning the gauge.
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Old 10-14-2018, 12:00 AM   #7
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Okay, I'll check that out tomorrow. Going to pick up some intercooler pipes from STS then take a stab at the cluster, I'll keep this updated.
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Old 10-17-2018, 07:26 PM   #8
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Quote:
Originally Posted by hiperfauto View Post
How many wires do you have? There should be 6. A ground for the dash lights and one for the gauges, power for the gauges from fuse 3, power to the dash lights from fuse 12, a connection to the tach from the coil (-) terminal and a connection to the oil pressure sender.

Yes, you need a 10 bar oil pressure sender and an elbow so the sender doesn't hit the alternator. If you have a B230 you'll also need an adapter.

What is the 'W' number on the back or side of the speedo?
Are the correct threads 1/8 npt for the part from Ben's?
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Old 10-17-2018, 07:35 PM   #9
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Yes, the sender and elbow are 1/8" NPT.
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Old 10-22-2018, 03:20 PM   #10
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Attempting install now, for the two grounds, can I ground them anywhere? Sounds dumb just want to make sure.
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Old 10-22-2018, 04:12 PM   #11
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Yes, you can ground them anywhere there's metal that's attached to or part of the chassis.
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Old 10-22-2018, 04:36 PM   #12
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Got them grounded on the column. Got the oil pressure wire run, waiting on the rest of those bits. Tach is hooked up. Need to extend the #12 wire to extend, #3 is hooked up.

If I have everything else hooked up but the oil pressure will it still work/start up?
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Old 10-22-2018, 05:03 PM   #13
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Old 10-22-2018, 09:30 PM   #14
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Here we go!




Followed the advice on here and the original instructions and it works! Need to get some bulbs, couple of the dash lights out. Didn't get a chance to check to see if it lights up at night. Also waiting on the rest of the oil pressure parts, but for the time being the wire is run to the engine bay.

The gauges are easy to see...kinda. I might start messing with my seat height as the top of the wheel, if I'm honest with myself, totally obstructs the two gauges top left and top right. It cuts the top of the speedo and tach off but that's still better than the original setup.
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Old 10-26-2018, 10:46 AM   #15
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Looking real good!
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Old 10-28-2018, 11:59 PM   #16
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Old 11-19-2018, 10:56 AM   #17
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Updates, having trouble posting a vid of the speedo. Speedo is all over the place, looks like it's seen better days. I know these need to be sent out and rebuilt, hoping to make sure everything works before taking them back out to be rebuilt.

Speedo is wacky, needle is all over the place and not consistent.

Oil pressure is at 4 bar at startup, settles down just under there and under throttle is over/at 5 bar. Seems to work great.

Engine coolant temp seems to work fine, hovers right above 80c

Volts jump to 12 and stay there no matter the engine rpm, what's with that?

Lastly, there's condensation in all of the gauges save the tach. I put my hand on them and they're all hot/warm. The lights in the gauges are on as soon as the car ignition is on, the headlight switch and gauge dimmer does nothing.




Thoughts?
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Old 11-06-2021, 03:52 PM   #18
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Old thread bump - I just wired up a new r sport cluster into my 1976 242. I have a new kjet wiring harness from Dave Barton that I also just recently installed. The harness has a connector for the oil pressure sender, but the instructions for wiring the r sport cluster say to run a wire directly from the oil pressure gauge to a special sending unit with an elbow that I don’t have. Is there something I can do to be able to use the existing wiring in the new harness I have with the stock oil pressure sender, or do I need to follow the r sport wiring diagram and get one of these special elbow sending units wired directly to the gauge?
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Old 11-06-2021, 04:31 PM   #19
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Didn't the gauge kit come with the oil pressure sending unit? It was supposed to.

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Originally Posted by The Holiest Man View Post
I have a brand new 240 R-sport Cluster, still in box, with sending unit and instructions.
The sender has 2 outputs, 1 for the light and 1 for the gauge. The wire in the factory harness is for the light. You need to run the wire that came in the kit to the gauge.
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Old 11-06-2021, 05:13 PM   #20
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Quote:
Originally Posted by hiperfauto View Post
Didn't the gauge kit come with the oil pressure sending unit? It was supposed to.



The sender has 2 outputs, 1 for the light and 1 for the gauge. The wire in the factory harness is for the light. You need to run the wire that came in the kit to the gauge.


I took the cluster out of the box, put the box in my closet and forgot about it. Yes I have the sending unit w/ elbow and the wiring. I even have the original instructions I had been looking at copies of online… amazing. Thanks for the “reminder” hiperf!
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Old 11-06-2021, 05:35 PM   #21
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So, if a guy had an R-Sport cluster but definitely DID NOT have any instructions or special senders in the closet, and he was getting close to needing to install said cluster, what would you guys tell him? Because I'm that dude right now, and I don't want to cave and put my crappy stock 1975 cluster back in just because I want the car to run right away.
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Old 11-06-2021, 06:09 PM   #22
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I forgot that R-Sport clusters use a 10 bar gauge and no idiot light so the sender only has one terminal. You could use the existing wire for the light but you'd need to cut or de-pin it from the cluster connector and connect it to the oil pressure gauge.

Here's the sender for the 10 bar gauge.

https://www.summitracing.com/parts/vdo-360004/overview

You'll also need a 45° fitting to clear the alternator and depending on which engine you have, you may need an adapter as well. The fitting is still available from Volvo but cheaper alternatives can be found at a good hardware store. It's a 1/8" npt street elbow.

https://www.tascaparts.com/oem-parts...-nipple-809109

Here's a link to the installtion instructions.

http://www.240.se/litteratur/514100.pdf
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Old 11-06-2021, 11:08 PM   #23
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I used the idiot light sender plugged into the pin that lit up the brake failure lamp + sender for 10 bar gauge. Idiot lights yell when you need them to.
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Old 11-07-2021, 12:50 PM   #24
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Nice, thanks!

Quote:
Originally Posted by hiperfauto View Post
I forgot that R-Sport clusters use a 10 bar gauge and no idiot light so the sender only has one terminal. You could use the existing wire for the light but you'd need to cut or de-pin it from the cluster connector and connect it to the oil pressure gauge.

Here's the sender for the 10 bar gauge.

https://www.summitracing.com/parts/vdo-360004/overview

You'll also need a 45° fitting to clear the alternator and depending on which engine you have, you may need an adapter as well. The fitting is still available from Volvo but cheaper alternatives can be found at a good hardware store. It's a 1/8" npt street elbow.

https://www.tascaparts.com/oem-parts...-nipple-809109

Here's a link to the installtion instructions.

http://www.240.se/litteratur/514100.pdf
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Old 11-08-2021, 08:06 PM   #25
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Quote:
Originally Posted by photoman327 View Post
Looking real good!
Agreed

Maybe consider Dave B's faceplates as an upgrade? I love the white R faces.

https://www.prancingmoose.com/WhiteF...ortRallye.html


Great job either way.
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