|
|
|
|
|
#1
05-27-2011, 11:48 AM
|
|||
|
|||
|
OM617, Good years for swap motor?
Hello All,
New to the forum, and to diesels. I am researching the best year OM617 for a swap into a Toyota land cruiser, and here is what I have found so far: This engine was offered (in the US) in the 300SD models from '79 to '85, and the model number for these engines ranged from the OM617.950 - .952. It seems that the .951/.952 engines are almost identical, but the .950 (offered in '79 only?) has 10 less HP. What is the difference in the .950 and the .951/.952? Are parts equally available for all models? I have read that the '79 is the only model imported without EGR (Exhaust Gas Recirculator?), is this an advantage or disadvantage? I was originally looking for a late model ('84/'85) but am having a hard time finding a suitable donor with reasonable miles on it. I have located a '79 with low miles close to me, but don't want to buy something that is inferior to the later models, or will have a problem with parts supply etc. Recomendations please???  I appreciate your input, and thanks for your time! -Guy 
|
|
#2
05-27-2011, 11:53 AM
|
||||
|
||||
|
Being a newbie myself who got into these cars for the same reason you are, but for transplant into a 96 rover, I can tell you the main difference.
82 up the engine was reenforced and turbo was added. 81 and older are naturally aspirated. You will want to go with an 82 or newer and have the turbo... Especially in a heavy 4x4.... On parts... Cheap and everywhere. Replacement engines, cheap and everywhere. Great platform, super easy to work on. No computers etc... Has become my single most favorite engine I have ever played with.
|
|
#3
05-27-2011, 11:58 AM
|
||||
|
||||
|
welcome GUY!
the biggest differences are in the cam, and the oil pressure fitting. 85 should be the BEST year to get a motor from, but if you find an 82 with low/no chain stretch and low miles, it's MUCH better than a worn slap out 85! post your location in the USERCP section so local members can assist you. there are several land cruiser conversions on here, use the upper search link, and choose google search and get ready for some READING!
__________________
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!
|
|
#4
05-27-2011, 01:14 PM
|
||||
|
||||
|
Question
Quote:
.
__________________
ASE Master Mechanic https://whunter.carrd.co/ Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 2003 Volvo V70 https://www.boldegoist.com/
|
|
#5
05-27-2011, 01:22 PM
|
||||
|
||||
|
If you are looking for a turbo diesel, I think they are all great engines, unless they are worn out. Turbo engines came out in 1978 in the SD or W126 Series, but didn't come out in the regular 300D or W123 until 1982. Try to find one in a car where you can get it started and check the compression. With a battery in the car, even without the keys, they are quite easy to start. If you can't check it out, you will never know if it is good or junk until you get it installed. If you can do a compression check, you are way ahead of the game. Don't depend on speedometer mileage. Speedometers in Mercedes cars are known to be 100% un-reliable. They are easy to change out, the often stop working and they only read 5 digits, so just don't even look at it.
__________________
Junqueyardjim Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis 1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA 2003 Jaguar Type X, AWD. beautiful, good mileage, Mom's car, but I won't let her drive it!
|
|
#6
05-27-2011, 01:29 PM
|
||||
|
||||
|
Narrowing your search for a 30 year old engine based on a couple specific (IMO unimportant) characteristics seems like splitting hairs to me. Any OM617 Turbo with good compression (you NEED to know the compression before dishing out cash, unless you get a super bargain) will suit your needs. Ideally an 85 would do, but I'd shoot anywhere from 82-85, there are a lot out there. You should have no problem finding a rusty car with a good engine, depending on location.
__________________
TC Current stable: - 2004 Mazda RALLYWANKEL - 2007 Saturn sky redline - 2004 Explorer...under surgery. Past: 135i, GTI, 300E, 300SD, 300SD, Stealth
|
|
#7
05-27-2011, 03:22 PM
|
||||
|
||||
|
Quote:
Best engines are '81-'84 617.951/952. .
__________________
1983 123.133 California - GreaseCar Veg System 
|
|
#8
05-27-2011, 04:47 PM
|
|||
|
|||
|
Thanks everyone for the replies!
I am in northern California.
The car I was looking at is a '79 300SD with 74k miles (the speedo comments above now make me wonder if this is legit.) The motor runs, but there is a problem with the trans so it doesn't drive. $300. I have found another '82 300SD pulled motor with 171k with all the accessories for $400 (might take offer.) Missed an '85 locally for $650, unknown mileage. I think I will pass on both of these and look for a later model still running so I can drive it for a while to make sure all is good before going through all of the installation work. I have the adapter all worked out, a shop called 4x4 labs makes the adapter kits. So more questions: How do you test compression on a diesel?(This shows my lack of diesel knowledge.) I have a compression tester, but don't know where to hook it up on a diesel. What should the compression be on a OM617? How do you measure the chain stretch? I have read that the chain needs to be changed before 200k. Did all models have only a 5 digit odometer? Suprised to hear that. What is the max mileage (assuming it is correct) that I should be looking for in a donor engine? What price to engines normally sell for? Seems like the '82 mentioned above might be worth that price for just spare parts? Thanks again, Guy
|
|
#9
05-27-2011, 04:59 PM
|
||||
|
||||
|
To check the compression you need a tester. For a long time Harbor Frieght was selling the diesel compression test kit for about $35.00. I don't know what the price is now, but it is a good kit. Compression reading can be taken with that kit either through the glow plug holes or through the injector holes. I use the glow plug holes. Good compression on the 617 will run from 350 to 425 PSI. Higher is better, but a well balance compression reading is very necessary, will all cylinders reading within 10% of each other. Again, less then 10% is better. So you need the kit, best to have the engine just run, but if you have a problem getting it to run, with a battery, (and even with no key) it is easy to make them crank. Regarding the pilot bearing in the 85, the standard pilot bearing is a little large, but putting the bearing in the freezer overnight will shrink it to where it will slide right in, or at least it is easy to tap it in.
__________________
Junqueyardjim Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis 1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA 2003 Jaguar Type X, AWD. beautiful, good mileage, Mom's car, but I won't let her drive it!
|
|
#10
05-27-2011, 07:01 PM
|
||||
|
||||
|
Quote:
.
__________________
1983 123.133 California - GreaseCar Veg System
|
|
#11
05-27-2011, 07:29 PM
|
||||
|
||||
|
Well Delivery Valve I did it and it is not difficult and the dimension is not 1 mm. I forget now the exact dimension, though I did post it when I did it, but I think it is like 22 thousanths. It is really hard to install it without the cold shrinking first, but with the shrink just take a deep socket close to the hole size and tap it right in. It won't fall out.
__________________
Junqueyardjim Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis 1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA 2003 Jaguar Type X, AWD. beautiful, good mileage, Mom's car, but I won't let her drive it!
|
|
#12
05-27-2011, 10:47 PM
|
||||
|
||||
|
Answer
Quote:
Timing Chains Don't Last Forever Timing chain crimper how to Timing chain crimper how to Self-made tool: Timing Chain loader Self-made tool: Timing Chain loader .
__________________
ASE Master Mechanic https://whunter.carrd.co/ Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 2003 Volvo V70 https://www.boldegoist.com/
|
|
#14
05-27-2011, 11:09 PM
|
||||
|
||||
Quote:
I nearly fell out of my chair laughing at your post !!! I got the impression that they guy was in a "state" of utter confusion !! Then I realized you were referring to his location !! ~ Silly me !!  Welcome to the forum hpmguy !!! As you will have seen. we are a happy helpful group. Best you do plenty of reading before you start. If you can get a complete car cheap enough it would be to your advantage. There will be many little things that you may need off the car to help with your transplant. A rust bucket with a good motor may be cheaper than a motor only. The post 82 motors are the best. A federal is better than a Cali. Dont worry about the EGR, it can be disabled easy enough. Good Luck !!!!
__________________
Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort....  1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles  1987 250td 160k miles English import  2001 jeep turbo diesel 130k miles  1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving
|
|
#15
05-27-2011, 11:20 PM
|
||||
|
||||
|
Answer
Quote:
My daily drivers have: * 1985 300SD Miles: 335,719 * 1985 300SD engine Miles: 275,000 body junked due to rust. * 1982 300SD engine Miles: 250,372 body junked due to rust. * 1983 300SD engine Miles: 185,127 body junked due to rust. * 1982 300D engine Miles: 270,127 body junked due to rust. * 1980 240D engine Miles: 183,786 body junked due to rust. * 1984 190D 2.2L OM601.921 Miles: 403,868 * 1975 E350 7.3 turbo Miles: 274,569 Last edited by whunter; 05-27-2011 at 11:38 PM.
|
 |
| Bookmarks |
|
|
Linear Mode
