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E34 (1989 - 1995)

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  #1  
Old 12-16-2012, 11:22 PM
geoffrey.whale@ geoffrey.whale@ is offline
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Wink hOW LONG TO REPLACE TIMING BELT

In order to try to price the job, can anyone tell me the approxiimate time (hours) to replace the timing belt on a M29 motor
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  #2  
Old 12-17-2012, 01:52 AM
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  #3  
Old 12-17-2012, 02:25 AM
robertobaggio20 robertobaggio20 is offline
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Takes 90 minutes, including timing bearings, for ordinary folks . Takes longer if you flush the radiator first, and even longer if you are doing the water pump and thermostat.

Consider changing your rad hoses, metal coolant pipe, fan clutch and engine belts to maximise your labour. Also have your pulleys inspected for damage, your tensioners inspected for errr loss of tension. This might also be the interval at which you need to adjust your valve clearances (cant remember please check the bentley manual).
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  #4  
Old 12-17-2012, 02:27 AM
robertobaggio20 robertobaggio20 is offline
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Respray your fan's blades with matt black paint when its out, on both sides. Trust me will look purty.
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  #5  
Old 12-17-2012, 03:54 AM
south26 south26 is offline
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For your first time figure 3 hours. It is suggested that you replace the tensioner. If you do not know the last time the water pump was replace I would also do this. The rest is just nice to do.


Andy
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  #6  
Old 12-17-2012, 01:56 PM
geoffrey.whale@ geoffrey.whale@ is offline
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Smile

Thanks guys. I now know what I am up to.
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  #7  
Old 12-17-2012, 02:16 PM
robertobaggio20 robertobaggio20 is offline
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Quote:
Originally Posted by south26 View Post
For your first time figure 3 hours. It is suggested that you replace the tensioner. If you do not know the last time the water pump was replace I would also do this. The rest is just nice to do.


Andy
Do you mean the timing belt's tensioner ? Should this be replaced at each tb change, or every alternate change ?
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  #8  
Old 12-17-2012, 02:54 PM
south26 south26 is offline
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I replaced the tensioner every other time along with the water pump.


Andy
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  #9  
Old 12-17-2012, 02:59 PM
robertobaggio20 robertobaggio20 is offline
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Quote:
Originally Posted by south26 View Post
I replaced the tensioner every other time along with the water pump.


Andy
Ok, so both water pump and timing tensioner at every alternate timing belt change. Roger wilco..
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  #10  
Old 12-17-2012, 08:12 PM
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_Ethrty-Andy_ _Ethrty-Andy_ is offline
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2-3 ours for your first time, i would expect a BMW specialist to be able to tackle this in 1.5-2 hours MAX.

Also makes sence to do waterpump while you are down there unless you have a history of it. also tensioner should come in any M20 timing belt kit.

(By the way, as far as i know there is no such thing as a M29 motor, i assume you mistyped and ment to say M20?)
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  #11  
Old 12-21-2012, 12:08 AM
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Don't paint your fan with paint, you're just going throw it off balance and make it eventually explode. I don't know how you're still on this site, Roberto. You're lack of knowledge is honestly hilarious. I can't fathom how you still believe the words that you type onto your keyboard.
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  #12  
Old 12-21-2012, 03:31 PM
geoffrey.whale@ geoffrey.whale@ is offline
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I am wrong again

Quote:
Originally Posted by _Ethrty-Andy_ View Post
2-3 ours for your first time, i would expect a BMW specialist to be able to tackle this in 1.5-2 hours MAX.

Also makes sence to do waterpump while you are down there unless you have a history of it. also tensioner should come in any M20 timing belt kit.

(By the way, as far as i know there is no such thing as a M29 motor, i assume you mistyped and ment to say M20?)
You are right it was a typo on my part shud have read M20. Thanks for the gee up.:
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  #13  
Old 12-27-2012, 08:19 AM
robertobaggio20 robertobaggio20 is offline
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Quote:
Originally Posted by Costa View Post
Don't paint your fan with paint, you're just going throw it off balance and make it eventually explode. I don't know how you're still on this site, Roberto. You're lack of knowledge is honestly hilarious. I can't fathom how you still believe the words that you type onto your keyboard.
1. We are talking about **spray paint**, not thick weatherbond emulsion house paint that is applied with a brush or a roller. Google for instructions on using spray paint and you'll see that we're talking about thin layers here. And this is on both sides, and in any case, any lack of balance cause by apparently uneven spray painting is insignificant in the context of a viscous fan clutch of that size. Just look at it rotating at idle and you should be able to assess this easily.

2. Spray painting is better than cleaning or leather/rubber spray coatings as a clean faded fan remains faded still and the leather/rubber conditioner does not last long in a hot environment. With spray paint, you've got a good 2 years on it.

3. Painted clutch fans and shrouds are plenty purty. Hi temp paints are not necessary but are nice in any case.

4. Clutch fans do not explode spontaneously, as the word 'explode' tends to invoke in the untrained mind. Perhaps you missed this thread.

http://www.bimmerfest.com/forums/sho...d.php?t=658749

Read it and other threads on the E39 forums on this subject carefully.

Last edited by robertobaggio20; 12-27-2012 at 08:21 AM.
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  #14  
Old 12-27-2012, 04:17 PM
Tyannt Tyannt is offline
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Link to "clutch fan spray paint" Roberto?
Do want my car to be plenty purty tooo!

Ummm, it's for the blades only, right?
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  #15  
Old 12-27-2012, 06:16 PM
robertobaggio20 robertobaggio20 is offline
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Quote:
Originally Posted by Tyannt View Post
Link to "clutch fan spray paint" Roberto?
Do want my car to be plenty purty tooo!

Ummm, it's for the blades only, right?
Well my dear, google IS your friend, but Roberto is your fan, so here you go :

http://www.amazon.com/s/ref=nb_sb_no...mp+spray+paint

http://www.walmart.com/search/search...h_constraint=0

http://www.ebay.com/itm/Dupli-Color-...30abad&vxp=mtr

Basically, walmart and autozone will have stacks of these.

Here are some tips on how to apply spray paint :

http://www.wikihow.com/Do-Spray-Painting

I'm sure youtube has great videos on this. Youtube should be on the "preparatory circuit" for anyone contemplating a DIY project of any shape or size. There are both good amateurs and seasoned mechanics who post videos there for everything. And this applies to any subject

Basically, for the fan clutch and shroud, you only need to apply one coat. Don't bother with more, it doesn't help none. Just make sure the surfaces are clean and free of grease, water and surface impurities as best as you can before you whip out the can.

Merry Christmas Tyannt ! I missed you the most ! )



rgds,
Rob

Last edited by robertobaggio20; 12-27-2012 at 06:19 PM.
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