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E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 05-21-2017, 03:48 PM
needshave needshave is offline
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How difficult is this?

I have (actually my wife own it) a 1987 3251C. The vehicle is in Pristine condition with 27,500 actual miles. Interior, body, convertible top, all just immaculate. Its been in storage covered and resting comfortably in my heated warehouse since 2001. I have it so I can take the plugs out and lube the cylinders at least twice a year.

Well the wife just retired and its time t get the bummer out of retirement. I know to change the timing belt and water pump before I even think about cranking it. SO, how difficult is this process? I have turned a lot of wrenches in my time, but not on this car. I have read that it take a special tool to lock the engine to change the belt, so I have to source all that. Any one have any experience in doing this? recommendations?

Thanks
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  #2  
Old 05-22-2017, 10:05 AM
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hornhospital hornhospital is offline
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Pelican Parts has an excellent DIY description on it:

http://www.pelicanparts.com/bmw/tech...iming-Belt.htm

They rate it 3 wrenches out of 5. I've done it many times. It's not difficult, but you have to follow the steps. There's no need to lock the crankshaft, just be careful not to move it when the belt is off.
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Old 05-23-2017, 08:07 PM
needshave needshave is offline
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87 325ic

Thanks for the info. That a great site. The step by step instruction are stellar! Did you pull the rad to do the job? It looks like it would be a lot easier. I surprised you did not lock the crank. I was going by what I have read and everyone seems to say that it was absolutely necessary. SO that is very encouraging, thanks for sharing all of your experiences and expertise.
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Old 05-23-2017, 10:48 PM
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hornhospital hornhospital is offline
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Yes, pulled the radiator. I always change the water pump and thermostat while doing the belt, so the system has to be drained anyway.
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Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot
Ken Kanne, Silverhill, AL, Bimmerfest Site Moderator
BMW-CCA #441426

1993 325is M3 clone"Ashlyn"; 1993 325is "Elvira"; 1985 635CSi "Katja"; 1984 633CSi "Sylvia"; 1987 325is "Odette";1995 318is"Bebe "; 1985 325e "Hazel Ann"

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Old 05-23-2017, 11:23 PM
7pilot 7pilot is offline
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While you change the timing belt, you should very frequently make sure that the crank and cam do not move in relation to each other. A crank lock is not vital.

m
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  #6  
Old 05-25-2017, 05:48 PM
needshave needshave is offline
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325ic

Thanks for the info, I'm going to try it without the lock and just double check the timing marks. I thought I would go to the local NAPA boys and get some prices and availability, but this vehicle seems to really confuse them and I will be trying Pelican for the parts. With the low miles and high storage time, does any one feel that I should adjust the valves while I'm in there? Or, just leave well enough alone.

Thanks for all the help.
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  #7  
Old 05-26-2017, 12:12 AM
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Rustneversleeps Rustneversleeps is offline
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I check every thing including brakes,lines, hoses,rear end fluid,check gas...There youtube vids on how to change timing belts..
New tires wouldn't hurt either...

Any pic of this 27K mile car.....
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Last edited by Rustneversleeps; 05-26-2017 at 12:14 AM.
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  #8  
Old 05-26-2017, 09:49 AM
3 Series 3 Series is offline
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It's not necessary, but you might find it handy to put some Sharpie or White Out match marks on the crank and cam so it's easy to see at a glance if either has moved before putting the new belt on.

Last edited by 3 Series; 05-26-2017 at 09:50 AM.
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  #9  
Old 05-26-2017, 10:15 AM
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Rustneversleeps Rustneversleeps is offline
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good idea with the white out.....
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  #10  
Old 06-01-2017, 06:55 AM
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Nick323 Nick323 is offline
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If a car has been stored properly, like yours, there is no need to adjust any mechanicals such as valves. Time does not make this wear out.
Obviously the rubber componentsd did take strain through the years.
That said, I would do the cambelt and then give everything a visual check over before starting and driving her.
You are used to wrenching, then you will see during thorough pre and post drive checks if anything is leaking, cracking, giving way. you will soon see what needs attention
I personally do believe that one fixes what is broke and keep on doing preventative maintenance. I do not believe in unneccesary work that might just destabilise other components, on old cars.
Drive her and enjoy her
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  #11  
Old 06-24-2017, 01:03 PM
needshave needshave is offline
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325ic

Im preparing to tear down the 325ic, to do the update identified above. I was talking to a friend that does a lot of repair on his BMW and alerted me with a concern. I expressed to him I though I could do it with the lock or tool to lock the cam and crank in position. He thought, Based upon his vehicles that there could be the possibility the cam being in such a position. that the valve tension and compression could cause the cam to move slightly or greatly when the old belt is removed. Understanding that the crank and cam would b marked before the belt was removed he thought there was still too much room for error. Im not sure i agree with him but I thought I would throw it to you guys for discussion.
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  #12  
Old 06-24-2017, 05:21 PM
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hornhospital hornhospital is offline
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Follow that Pelican DIY guide and there is zero chance of damaging anything. As long as you don't spin the engine with the timing belt off, nothing bad can happen. You DO NOT have to lock the crank at TDC.
__________________
Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot
Ken Kanne, Silverhill, AL, Bimmerfest Site Moderator
BMW-CCA #441426

1993 325is M3 clone"Ashlyn"; 1993 325is "Elvira"; 1985 635CSi "Katja"; 1984 633CSi "Sylvia"; 1987 325is "Odette";1995 318is"Bebe "; 1985 325e "Hazel Ann"


Last edited by hornhospital; 06-24-2017 at 05:22 PM.
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