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#1
10-15-2012, 02:42 PM
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Engine Swap, diff AC Compressor
I have a 1980 300D engine with the newer-style AC Compressor (on the bottom left).
How difficult is it/what modifications are needed to swap this into a vehicle with the older-style AC Compressor (on the top right) and have the AC system connected properly?
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New, Used & Rebuilt Parts for Classic Mercedes mbzparts.com 
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#2
10-15-2012, 02:59 PM
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You have to totally different type compressors. a York on the top right and a R-4 GM type compressor on the lower left.
I suppose with enough money it could be dooable to fabricate the brackets to make it work, along with making the hoses etc.... Another option would be to fix/repair the York, or swap in a Sanden compressor. there are the brackets available on e-bay or maybe 4 seasons or one of the AC sites. the sanden would use less hp and are more reliable than the R-4. Charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
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#3
10-15-2012, 03:16 PM
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Do a search on here, it sounds like the perfect time for you to install a modern Sanden compressor
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$60 OM617 Blank Exhaust Flanges $110 OM606 Blank Exhaust Flanges No merc at the moment
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#4
10-16-2012, 10:52 AM
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Usually the older blocks ( York compressor engines ) don't have the mounting ear for the R4 compressor bracket.
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 76 240 D. Bought in 1998 for $25. 85 300D. Got it for free with a bad engine. ( Sold ) 60 Unimog 404. What was left of it, was given to me. Now powerd by 617A. 88 560 SEL. Bought without engine and trans. Now powerd by 617A. 67 250 SE. Cuope. For resto or sale. 64 220SE. For resto.
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#5
10-16-2012, 11:57 AM
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ok, so the engine you are getting ALREADY has the R4 mounted. did the motor come from a 123 or a 126? if it came from a 123, you are golden, just connect the hoses. they are in the same position on both vehicles, and all you have to do is take the wire that fed the york clutch, and wire it to the R4, bobs your uncle, you're done!
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 560SL convertible 1987 190D 2.5-5SPEED!!!  1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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