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#1
05-17-2015, 12:06 AM
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Engine stuck to car...what've I forgotten????
Ok, so I finally got around to changing the engine mounts in my car, which even though are only a couple of years old might've been the cause of my car's excessive shaking at idle.
So I get setup at the workshop and undo the 3 bolts per mount -that is, the two top ones and the one from underneath...trying to think of everything here! Took me 3ish hours because of being RHD and having a turbo and steering box in the way. So then I proceeded to jack the engine up from the sump. And the rest of the car went up with it. So then I loosened off the remaining engine shock absorber (the left one had to come out to get a mount bolt out). Same thing when jacked up even with it loose. So I went through all the possibilities I could think of: Extra engine mount under the sump - nope Engine caught on some cable/hose etc - nope Car sitting on gearbox - nope Car sitting on gearbox mount - nope- loose Exhaust in the way - nope - kicked loose Mounts somehow caught - nope - could hammer the mounts themselves around a little but they still had some weight on them. I actually got to the point I hammered them away from lining up the bolts again and couldn't get them back. Even jumping on the car body didn't free anything. So I packed up and drove home from the workshop. Silly I know, having things unbolted like that, but the engine + car are still very firmly attached to one other.... This issue also would be why the car shakes - the engine is sitting on the frame or vice versa. This simple mission as done m'head in  So what've I forgotten?Thanks.
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1978 300D, 373,000km 617.912, 711.113 5 speed, 7.5mm superpump, HX30W turbo...many, many years in the making.... 1977 280> 300D - 500,000km+ (to be sold...) 1984 240TD>300TD 121,000 miles, *gone* 1977 250 parts car 1988 Toyota Corona 2.0D *gone* 1975 FJ45>HJ45 1981 200>240D (to be sold...) 1999 Hyundai Lantra 1.6 *gone* 1980s Lansing Bagnall FOER 5.2 Forklift (the Mk2 engine hoist) 2001 Holden Rodeo 4JB1T 2WD 
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#2
05-17-2015, 01:24 AM
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I am just guessing..... but sounds like you have some hidden bolts in the engine mounts....
and you have to take into account that physics works different for you people upside down.....
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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#3
05-17-2015, 02:21 AM
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Are the front tires on the floor? Takes quite a bit of jacking to get the load off of the suspension before the engine lifts off the mounts. You might have given up just a little too soon.
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'79 240D
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#4
05-17-2015, 03:03 AM
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Lol some strange physics going on here...
I had the front wheels sitting on 4" blocks. I then was jacking the engine by a good six inches once it got to max travel. Is that not enough? I think you may be onto something though, I sat on my car the other day and I think the springs bottomed out, maybe the springs are so saggy after 36 years and having the extra weight of a turbo on them. Thanks, in fact the more I think about it the more it has to be the issue...
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1978 300D, 373,000km 617.912, 711.113 5 speed, 7.5mm superpump, HX30W turbo...many, many years in the making.... 1977 280> 300D - 500,000km+ (to be sold...) 1984 240TD>300TD 121,000 miles, *gone* 1977 250 parts car 1988 Toyota Corona 2.0D *gone* 1975 FJ45>HJ45 1981 200>240D (to be sold...) 1999 Hyundai Lantra 1.6 *gone* 1980s Lansing Bagnall FOER 5.2 Forklift (the Mk2 engine hoist) 2001 Holden Rodeo 4JB1T 2WD
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#5
05-17-2015, 04:50 AM
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When I did the ones on the 85 190D I thought the engine was stuck because the car was going up as I jacked the engine up. Nope, it was just that as I jacked the engine up, the load was taken off the springs and they pushed the body up in kind. So after I jacked some more, the engine came totally off the body and then it went up without the car following it.
 It was free from the body the whole time, I was just tricked for 2 hours. Hahahaha!
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'84 190D 2.2 5MT (Red/Palomino) Current car. Love it! '85 190D 2.2 Auto *Cali* (Blue/Blue) *sold* http://badges.fuelly.com/images/sig-us/302601.png http://i959.photobucket.com/albums/a...0/sideview.png
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#6
05-17-2015, 09:40 AM
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Dont forget to block your motor before you get your hands in there.
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1985 300D 198K sold 1982 300D 202K 1989 300E 125K 1992 940T "If you dont have time to do it safely, you dont have time to do it" "The democracy will cease to exist when you take away from those who are willing to work and give to those who would not."
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#7
05-17-2015, 09:56 AM
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Engine stuck to car...what've I forgotten????
Ummm. Is there an engine stop bracket on the front of the motor? It bolts in front on above the oil pan and goes the front crossmemeber. Typically caked in grease.
You said something about "under the sump". But i had to say something.
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#8
05-17-2015, 11:13 AM
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First off... support the vehicle with the wheels dangling... ya don't want spring dynamics moving things...
Second, if it's a 240 there is a fourth mount behind the oil pan...
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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 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#9
05-17-2015, 11:25 AM
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Engine stuck to car...what've I forgotten????
I have this thingy on the front. This is on the motor side. Theres a little S bracket also that connects this device into the crossmember. 220D. 615
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#10
05-17-2015, 11:34 AM
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He has a 78 300D with a 617.952 engine, It does not have that bracket.
The early MB`s had that. My 240D has it. 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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#11
05-17-2015, 11:54 AM
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Manual Transmission ??
You are downunder-ish so it is a possibilities. I had the same problem on the W201 190D manual. There is a bracket between the transmission and the engine to stop the engine from lifting up. It is something near the front of the tranny and the cross member. It has been a while.
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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed. W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html 1 X 2006 CDI 1 x 87 300SDL 1 x 87 300D 1 x 87 300TDT wagon 1 x 83 300D 1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.
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#12
05-17-2015, 12:16 PM
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When you fix this problem..
Really consider putting new springs on your car.... I have never heard of anyone who did who was not really pleased with the new feel of the suspension ......and the actual springs are relatively cheap....
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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#13
05-17-2015, 05:47 PM
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I didn't read one mention of unhooking the throttle linkage from the firewall to the valve cover.
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#14
05-17-2015, 06:13 PM
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Quote:
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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#15
05-18-2015, 02:35 AM
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Thanks guys, it is a learning experience. Just thought something must be wrong when my jack topped out...
Yea I thought being an older generation of 123 it might had that extra mount but of course with the 1981 turbo engine in it there wasn't anything there. I could probably jack the car up till it's off the front wheels, makes for more room... I hope to use my engine hoist to lift it up this time, much easier than propping a jack up even more than I already had it. No accelerator levers to worry about But have a steering box 2 inches away from the turbine housing...Also....how springy are the engine shocks meant to be? Mine don't move if I compress them...stuffed I assume. Cheers fellas
__________________
1978 300D, 373,000km 617.912, 711.113 5 speed, 7.5mm superpump, HX30W turbo...many, many years in the making.... 1977 280> 300D - 500,000km+ (to be sold...) 1984 240TD>300TD 121,000 miles, *gone* 1977 250 parts car 1988 Toyota Corona 2.0D *gone* 1975 FJ45>HJ45 1981 200>240D (to be sold...) 1999 Hyundai Lantra 1.6 *gone* 1980s Lansing Bagnall FOER 5.2 Forklift (the Mk2 engine hoist) 2001 Holden Rodeo 4JB1T 2WD
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