Drive Belt Deflection Rollers.

I have started the task of removing the air box and bits and pieces in readiness for the delivery of my new water pump, thermostat and belt and after removing the belt figured i'd check the condition of my deflection rollers. The top one and bottom one both free wheel very easily so from what I have read they are goosed. The tensioning one seems good. Now I have removed them both and to my surprise they both have the same part number 996 102 120 55. From what I can see online there are 2 different deflectors with differing part numbers. Any assistance or recommendations greatly received. Thanks Before anyone says anything, the bolt is from the Catalytic Converter bracket and nothing to do with either deflector roller. :thumb:

I'm following this as i thought they would need to run easily?? Let me know how you get on. Somebody like DeMort will be along with more mechanical knowledge than myself.

were they fairly easy to remove?

Nicky they came off very easily. From what I have heard they should not spin freely. They should have resistance and stop pretty much as soon as you push you finger off when turning. When they continue spinning it shows that the bearings are goosed.

They are on my list to sort

Just replace the bearings lads. Plenty of info on here. Have the pulleys powder coated (but not the bores) if you want to spruce them up a bit. And yep really free spinning with a bit of noise means they're well worn. You'll see from a new bearing what they should be like. :thumb: Edit - I covered it here on my old C2. http://www.911uk.com/viewtopic.php?t=118164&postdays=0&postorder=asc&start=60 I think someone on here found a cheaper bearing too. Like £3/4 instead of £20.

I will check that out thanks

E06C530C-2CD2-439F-B38F-C9A1BF569B39 by Nick Goodess , on Flickr mine are in a similar condition! thanks Guys, this forum is ace!

I used these ones -> https://www.bearingbasement.com/p/b...ag-double-row-angular-contact-bearing-sealed/ As advised in this thread -> http://911uk.com/viewtopic.php?t=116879&highlight=idler+pulley Delivered quickly, fitted great and feel fine, ive not started the car up yet but have every confidence that these will be just fine.

Thanks everyone just ordered 3 of these. Will let you know when they have been delivered and fitted. Thanks https://www.bearingbasement.com/p/b...ag-double-row-angular-contact-bearing-sealed/

I'm sure Wasz got full pulleys for not a lot of money from one of the German part sites, possibly Autodoc but not 100% Rockauto found it... http://911uk.com/viewtopic.php?t=101753&start=20

Hi Spinning aside, when you grabbed the pulley was there any play? If not I wonder if the seal can be removed and the bearing re-greased. Those bearings are pretty expensive! The most expensive standard IMS bearing I can find is about a tenner! Just for comparison. Tks Berni

I just did the bearings in 2 of mine due to play / roughness. IBU brand 3202-2RS bearings cost about 30€, I think. And no, the bearing should not have resistance. As long as they spin OK and feel smooth with no play, they are fine. It's also worth noting that only the bearings in metal deflection pulleys can be changed. Later models have plastic pulleys.

Hi As a result of this thread I checked mine and one sounded dry and spun quite freely, so I removed it popped the seal off, cleaned out the inside (brake cleaner spray then WD40) and repacked it with grease. Runs perfectly now. Berni

Thats worth knowing, it would be interesting to see how long they last. Getting the old bearings out is more difficult than I anticipated. My pulleys are currently sitting in a bath of penetrating fluid awaiting the arrival of the new bearings then I'll give it another go. :roll: