Hi again Byron "bcg" Golden!

Please read here (copy and paste URL into new browser tab or window):

https://www.brickboard.com/RWD/volvo/1674184/240_m47_swap_79_series.html

Are you in 'smog happy' California? Hope not.

If a 49-state (not CA-state) 240 with M47 II, that 1991 will come fitted with the LH-Jetronic 3.1 injection and the same EZK116 ignition (crank position sensor!) fitted to North America US-market 240s from 1989 to (sadly) final year 1993 240.

LH3.1 was fitted to M47 cars California or not. I'm pretty sure only 90, 91, and 92. In 93 they were all LH2.4, standard or automatic. What I'm unsure about is 89.

So, see the bell housing notch to accommodate the crank position sensor (CPS) bolt-on bracket at the back of the engine block. The 1991 M47 II bell housing includes this notch.

You can fit this M47 II, so far as I recall, to either your 1986 240 or and your 1992 240.

1986, as you know, uses the Bosck EZK117 (? 115 is Turbo, yes?) ignition with the in-distributor impulse 'Hall-Effect' sensor used to report engine rotation position to ignition and injection. You can fit it and no need, again, so far as I know, to worry of plug the top of the bellhousing notch.

The 1986 240 uses Volvo/Chrysler ignition, not Bosck. You're thinking of the 7-series, but yes, the Hall sensor does the timing.

Shift all manual transmission bits from the donor 1991 240 including clutch pedal box, cable, and I guess flywheel, certainly driveshaft and guibo (not giubo as Art B. corrects us) flex coupler disk, transmission support bracket, flywheel, and so forth.

The word is "giubo" not gweebo. Joo-bo. Perhaps not among all the folks working at the parts counter, though. LOL

With such an endeavor, may want to closely inspect the donor M47 II for abuse and wear by inspecting (1) fill and (2) drain plugs to see how full of silver the conical magnet loads inside one or both plugs may be. How is the fluid on draining? Can you drive this 1991 240 and listen to it as it drives? The clutch cable there is adjusted for proper free play of 3-5 mm at the throwout arm?

Drive it??? Funny.

Please search for article here about this auto to manual swap for 240. Also, you will want to seek same at the Turbobricks website.

If not a CA-state 240, as a 49-state 240, that 1991 240 may come fitted with the Bosch LH-Jetronic 3.1 injection paired with the the same Bosch EZK116 (CPS) ignition.

Again, see above. Either emissions market is defined by EGR in the 90s 240s, not fuel management version. But, making type of transmission distinction, for both LH3.1 and LH2.4, there is a jumper option which enables the shift indicator lamp in the instrument panel at the violet wire from pin 26 on the fuel ECU.

Consider seal replacement of the gearbox proper and the '5th gear' rear splash chamber, the top plate seal, the gear selector shaft seal at the back wall of the gearbox proper, and the input seal. You can perform other checks such as input shaft free play and maybe synchro and main and lay shaft play also.

Else, the aforementioned link to the recent article, maybe the 700-900 FAQ entries on the M47 gearbox, and searching for 240 from AW7x and M47 can help.

Certain others here can help.

Certainly

And use the clutch pedal to shift only. Do press a clutch pedal for an extended period like at stop lights or RxR crossing waiting for the train to pass by. Bad for clutch components and M47.

I think you meant to say put the gearshift in neutral and take the strain off of the clutch while you wait for the freight. Right?

Also, M47 is best for normally aspired B230. So stock B230. No Turbo or (ugh) +Turbo redblock engine in front. M47 is a rather frail gearbox and is best with a gentle shift yet winds up nicely in 3rd gear for freeway on-ramp merging.

Also forgot in the linked article above. The rear axle final drive ratio is different between factory-fitted AW7x automatic and factory fitted manual transmission. IIRC, the automatic transmission final drive diff ratio is lower and in gearbox equipped 240, the final drive is taller? Or vice versa.

OH! Here goes! A Turbobricks thread treating this issue of 240 swap from AW7x to M47 (or M46) and living with or swapping gears from the manual donor car diff to the recipient 240.

http://forums.turbobricks.com/showthread.php?t=152012

As for worth it, I personally dunno. All 240s I've owned since August 1984 were manual gearbox equipped. Yet would no want an auto 240 or 700/900.

Questions?

Hope that halps yoooo!!!!!

Gots Me Some Buttermilk (yet no Sourdough bread) Boyeeeeeeeeeeeeeeeeeee!!!!!!!!!!!!!!