Battery Alternator visit workshop

[Petrol Pete]

which one of these is it not to turn wrong way?

Number 6 , the crankshaft. You wont be able to do it by hand anyway . If it does move by hand you have big problems better not contemplated. It might be a dynamic balance type pulley , they do wear. Others on here know more than me about that bit and will be along soon to help out.

 

[dmwc180]

just got a price for the tightener pulley and the belt tighteners from local factor is £108 for these and £49 for belt. im off out now to test the pulleys. as have to order by 1pm today to be able to get them or cannot get home lol

 

[Petrol Pete]

yeah got a price of £49 for a new belt for my local motor factors and they have in stock on gates 7pk2418 , will check price of the belt tension pulleys as well

There you go ! 7 peaks and 2418 MM long

 

[dmwc180]

so just went out to check the pulleys and confirm belt route and i think i found the issue lol. there was the housing their originally which i thought was part of the belt but that's drop down will get when i take the other stuff off. to replace. all pulleys order and new belt. seems the pulley came apart , failed completely

what do you guys think i can replace just the pulley here or the whole assembly. A271 200 05 70 or the a271 200 02 70, i dont have access to ramps or jacks at work.
whast best way to get out the spring part out.

 

[ToeKnee]

There will be plenty of videos on YouTube about replacing the belt tensioner. I recommend you watch one before starting, especially if you've never replaced one before.

 

[dmwc180]

There will be plenty of videos on YouTube about replacing the belt tensioner. I recommend you watch one before starting, especially if you've never replaced one before.

none i have found so far show doing the whole thing only the pulley side not the spring element on a w203 m271

 

[ToeKnee]

none i have found so far show doing the whole thing only the pulley side not the spring element on a w203 m271

Sorry, my mistake but to be fair if you look at any tensioner removal video I hope it will give you some idea what is involved as most work in the same way. Good luck.

 

[Jobsworth]

Changing just the plastic part is much easier in the field than replacing the whole thing. Sometimes the centre bolt is a tamperproof type with a pin in the middle. You’ll need the appropriate tool if thats the case

 

[dmwc180]

Thanks

yes i have bene watching a few videos of the such to get a feel for it. yeah brought the wrong tool set to work, all my star stuff is in my other set, so will be a job for tuesday now.

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[dmwc180]

so the two pulleys are off and the new pulleys and belt is on, just putting back together. but dont have a torq wrench to check the nm but have not done up to tight yet. as you can see not much left of one of them.

 

[dmwc180]

so all back together now and running, will take for a test drive round work in a few days, as working away next few days

 

[dmwc180]

So all good so far done around 60 miles.

 

[Petrol Pete]

Did you use threadlock fluid on the centre bolt or did the new one come pre coated ?

 

[dmwc180]

Did you use threadlock fluid on the centre bolt or did the new one come pre coated ?

Hi
I did put some thread lock on the bolts, when I put in, took a few attempts to get in on one of them , guess will double check they are still tight enough after. A few miles