Some friends helped me pull my blown motor yesterday, it came out fairly easily. I have a couple questions before installing the replacement:

1. Any paticular maintanence items should I do while I have the motor out?
2. What are the 3 openings in the firewall I circled in the picture below? They look to be missing a flap cover.
3. I can't find a new engine shock absorber on any parts site does anyone know if it's available? I guess I will call Phil on this one Monday.

Attached Thumbnails

       

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1972 280SE 4.5

I'm not familiar with the W115 but I understand getting to the heater blower is a bear. is it easier with the engine out?

Sixto
87 300D

the openings you have circled are able to accept a rubber flap that attaches by way of two pointed rubber teats. i ordered three for my car but with the hood on and the engine in the car i cannot get the right angle/leverage to install them.

renewing the motor mounts comes to mind as does sending the radiator out for cleaning if you've not kept up with coolant flushes. once the replacement motor is in would be a good time to do a citrus flush.

you may want to replace the oil filter housing gasket on the replacement engine. it is very difficult to completely remove the old gasket when the motor is in the car. it's far easier to perform this task before a motor goes in.

also, the time between engines is a perfect opportunity to inspect your car's firewall for rust perforations, leaks where cables pass through, etc. the sound deadener near the the trans tunnel sometimes peels away and begins to trap water.

don't neglect to remove the air intake screen/grille at the base of your windshield and clean it out making sure the drains are running free. look closely at the heater control cables that pass through the area on their way to the heater valve. the rubber boots that seal out moisture get all dried out and may be cracked. if dry nourish them with a rubber treatment. if cracked patch with seam sealer or a good adhesive caulk.

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I removed my W115 heater blower motor a few years ago. Yes it is a bear to remove. I found the motor to be working fine, btw. My problem was in the wiring. Sheesh.

My Chilton's manual, btw, made the removal appear to be fairly straight forward:
1. Remove heater blower motor cover.
2. Remove heater blower motor.
3. Installation is the reverse of removal.

Simple, right?

Well, as someone pointed out to me afterwards.... Chilton's left out one important step. The instructions SHOULD read:
1. Remove ENTIRE CAR around heater blower motor cover.
2. Remove heater blower motor cover.
3. Remove heater blower motor.
4. Installation is the reverse of removal.

So, no, I don't think having the engine out of the car would make any difference to this task.

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[SIGPIC]
Tom
SE Connecticut
1975 W115 300D

visit my blog:
http://mercedesdieselrebuildingdiederich.blogspot.com/

My deepest condolences... that is really depressing...Been There, Done That !

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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/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

Nothin' sadder than a blown 240D engine. Too few good ones to go around.

I hope yer new motor is good and solid.

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Codifex
1981 240D ChinaBlue (Got her running with a donor engine.)
1983 300DTurbo w/sunroof.
1984 300TD manual sunroof. (Electrical Gremlins)

Ok I will talk to Phil on Monday about ordering these.

Already ordered / in the plan

I hadn’t thought of that and even though the new motor doesn’t appear to be weeping there, It sounds like a cheap preventive step.

All good ideas will do thanks for the input.

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1972 280SE 4.5

Billhard,

Did you order the rubber flaps from Phil? If you did could I get the part # from you so I could order some as well?

Thanks

Maclaveau

No I forgot to get them in the first order, and then my friend needed his engine hoist back so I am living without them for now. Bill

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1972 280SE 4.5