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Cam Angle Sensor (CAS) for B230FK into Volvo 240

ludi

ludi

Active member
Joined
Feb 14, 2009
Location
Germany/Dresden
Hello all,

We are currently converting a B230FK from a '98 Volvo 940 into a Volvo 240. The car is to be operated directly with an EMU Black control unit. The standard crankshaft angle sensor is to be used and a camshaft sensor. We had bought the kit from Speedingparts, which I had specifically asked for to see if it would fit. Unfortunately, it doesn't fit and the kit bumps against the firewall of the Volvo 240.



I would now install a camshaft sensor on the front side of the engine, but so far I have never found a similar solution when searching with google. Has anyone already implemented this? Is there a ready-made kit for this?

Thank you very much!

Best Regards, ludi
 
You could use just the factory 60-2 flywheel, but that won't give you a cam signal for full sequential.
(Note: the factory VR sensor has a huge range of output voltages depending on RPM. For MegaSquirt/MicroSquirt installs, adding an external resistor is usually needed. Your ECU may have similar problems.)

The Yoshifab block mounted DSM crank angle sensor is commonly used, is nicely made, and has been around for many years. It needs the redblock auxillary shaft (sometimes called intermediate or balance shaft on ebay) with the distributor gear machined. Most of the 940 aux shafts don't have the disti gear machined, but are otherwise the same. You could remove the disti block-off plate on your engine and look inside to see if it's machined - you might get lucky.

Otherwise, I've seen people add a gear tooth sensor to the valve cover over a cam lobe, or add a gear tooth sensor through the old mechanical fuel pump block-off plate (with the fuel pump lobe on the aux shaft ground down to more of a point). The Yoshifab DSM adapter is much nicer, but adds some $$$.
 
I used the 60-2 flywheel crank sensor as bobxyz suggests along with an old block mounted lh2.2 hall sensor distributor… cut off 3 of 4 teeth and positioned the remaining tooth to cross the sensor at tdc… that gave me my 2nd trigger for sequential ignition… granted, still needed the 240 aux shaft. It goes without saying that I used something else for spark delivery that that distributor.
 
Last edited:
740atl said:
I used the 60-2 flywheel crank sensor as bobxyz suggests along with an old block mounted lh2.2 hall sensor distributor… cut off 3 of 4 teeth and positioned the remaining tooth to cross the sensor at tdc… that gave me my 2nd trigger for sequential ignition… granted, still needed the 240 aux shaft. It goes without saying that I used something else for spark delivery that that distributor.
Click to expand...
Can used also LH2.2 ignition distributor from volvo 740 with hall sensor (look exactly like distributor from lh2.4, but with additional hall sensor). Here you don't need aux shaft from 240.
I also install emu in 940 and I use this solution to make full sequential injection
 

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wolfgolf said:
Can used also LH2.2 ignition distributor from volvo 740 with hall sensor (look exactly like distributor from lh2.4, but with additional hall sensor). Here you don't need aux shaft from 240.
I also install emu in 940 and I use this solution to make full sequential injection
Click to expand...
Looks good. An elegant solution. Might have a bit of trouble running that in a 240 however... it's a wee bit tight between the back of the head and the firewall... 700/900's don't have that issue....and.... you'd need to have a camshaft drilled to fit the end of the distributor.
 
^^^ That looks like a solution I haven't seen before. You're using the 60-2 flywheel and a sensor off an aluminum cam pulley, right? Can you post a picture of sensor, and add-on magnet or iron tooth? A bigger fixed picture of that beautiful engine bay would be nice too.:cool:
 
bobxyz said:
^^^ That looks like a solution I haven't seen before. You're using the 60-2 flywheel and a sensor off an aluminum cam pulley, right? Can you post a picture of sensor, and add-on magnet or iron tooth? A bigger fixed picture of that beautiful engine bay would be nice too.:cool:
Click to expand...
Sorry, this is not my engine bay/car. I just wanted to show that I am not the first with this solution and will now pursue it. Unfortunately I don't have any better pictures of this project either. But there will be better ones of my solution then, if interested.

Best Regards, ludi
 
cwdodson88 said:
Once you get that bracket finalized, let me know if you’d like it one piece out of billet aluminum. I’d be happy to help.
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I appreciate the offer, thank you very much! But I am from Germany. It might be cheaper to find someone here to do it. :unsure: The idea is good! (y)

Greetings
 
www.speedingparts.co.uk

Cam position adapter KIT Volvo B230

Cam position adapter Volvo B230 Adapter to fit camshaft sensor on camshaft to enable sequential ignition with aftermarket engine management system on Volvo red engine with distributor on camshaft mounted original. Kit contains:1x Camshaft adapter Volvo B230 (HC09094)1x Camshaft sensor...
www.speedingparts.co.uk www.speedingparts.co.uk
Tight fit for a 240
 
machodrilo said:
Can you please elaborate a bit further on the add-on installed on the cam gear?
Click to expand...
Hi, a thread will be made on the camshaft gear and a ferritic pin/screw will sit in it so the sensor can pick up the rotation of the camshaft.

Again a small update. Spacer sleeves are there and the position is very good. But these will be changed again so that the plastic is held by the cover.


IMG-20231012-WA0001.jpg


IMG-20231012-WA0000.jpg

Best Regards, ludi
 
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