Bearing Part Number for Tensioner

[DarrenW]

Hi All,

hope someone may just have the part number laying around.
It's a 300TDI in a disco

Did a bit of home servicing on the weekend and replaced the Drive Belt and Air Conditioning belt. Took about 20 mins and I was quite proud of my self... last belt I changed was on a Mini and still have the scar's on my hands.

Anyway the dreaded chirps have arrived :mad:and tonight I took the drive belt off and span the tensioner and believe it to have a knackered bearing .... although it didn't make a noise before I changed the belts. I recall during one of the services on the car my mechanic said he just changed the bearing ... a few $ rather than the expensive whole pulley. Does anybody have the part number of the bearing handy? Intend to get the bearing before I pull it apart on Saturday...

Also do I need a press to push it out or can I just knock it out with a suitable puch and similarly push the new one in.

Thanks

Darren

[Bushie]

I'm assuming its the same as a defender, so it should be a 6205 bearing.

https://www.aulro.com/afvb/images/imported/2009/03/2.jpg (http://www.aulro.com/app/showphoto.php/photo/7283)

I filed a small notch (at about 7o'clock) to make it easier to get the circlip out next time.


Martyn

[justinc]

I'm assuming its the same as a defender, so it should be a 6205 bearing.

https://www.aulro.com/afvb/images/imported/2009/03/2.jpg (http://www.aulro.com/app/showphoto.php/photo/7283)

I filed a small notch (at about 7o'clock) to make it easier to get the circlip out next time.


Martyn

6203 is the correct number.:)

JC

[seano87]

As JC said, 6203 bearing, any auto shop such as auto-one should keep them, or a bearing shop, cost me $6 for a decent quality one about 4 weeks ago, have seen them range from about $3 to about $10.

I knocked mine out pretty easy and gently tapped the new one in with the old bearing against the new to prevent damage and spread the load.

Seano

[DarrenW]

Thanks guys... that was quick. I think Justin's got the correct number I can't find a 6205 on the SKF web site .... so it must be a 6203.

Justin can you advise if I'm going to need any special tools to push it out / in ...
I know I've got to get the circlip out first .....

Darren

[justinc]

Thanks guys... that was quick. I think Justin's got the correct number I can't find a 6205 on the SKF web site .... so it must be a 6203.

Justin can you advise if I'm going to need any special tools to push it out / in ...
I know I've got to get the circlip out first .....

Darren

Martin (bushie) is on the money, I drill a small hole at the side of the circlip groove and then tap the circlip around across the hole so I can then get a small pick behind it and flick it out. I select a socket and tap the brg out, refitting I use another socket on the outer race only, tap in to seat and fit circlip.

JC

[DarrenW]

Thanks to everyone for the prompt response...

know what I'll be doing Saturday morning

Darren

[Bushie]

Should have looked closer at my own pic (can see bearing #) and not trusted the dodgy memory.

Martyn

[DarrenW]

Hi all,

good news ... and bad.

Got the good women to get me a bearing today and when I got home I set to work.
All went ok, only bit that threw me initially was the bolt holding the actual pulley wheel, it's left hand thread :o. Tapped the old bearing out (it was stuffed) and gently eased the new one in. Refitted and started the car.

The chirp is still there. :mad:

Pulled the belt off and span the water pump , alternator and power steering pulley and all feel smooth... obviously I cant spin at the same speed as when the engine is running.

I'm now leaning towards to Aircond belt pulley's. Does the air conditioner tensioner also have a bearing that can be easily changed ? Also what about the fixed pulley....

Is there any secret was to identify where the noise is coming from

Darren

[Bushie]

I'm now leaning towards to Aircond belt pulley's. Does the air conditioner tensioner also have a bearing that can be easily changed ? Also what about the fixed pulley....

Same bearing but probably easier to change :D

Martyn

[sschmez]

The chirp is still there. :mad:



As the tensioner gets older, it can wear on the bottom and the gap at the top starts to open up. This allows the pulleys to run on a slight angle pushing the belt across and causes the edge of the belt to chirp as it runs into the lip/edge on the next pulley. As it gets worse the edge of the belt will strip off too.

check your tensioner with a straightedge across the face of the pulley, and compare that to the other pulleys.

Explained pretty well HERE (http://www.aulro.com/afvb/technical-chatter/64367-more-300tdi-squeaking-belts.html#post823159)(better than I just did;)) and more detail.

Stevo