mikefifth

can the bearings be hammered in? I have no access to a press

LiamR

Yeah, nice big socket to give an even distribution of force ON THE OUTER RACE and HIT that badboy... but be careful not to hit it in at an angle.

BenRNBP

Replaced my idler pulley bearing (for reference it was a NTN 6203LU) with one of these

Even though the play was minimal it's really quietened the engine. I decided that the low friction seals were a good thing and that a C3 clearance probably wasn't needed - operating temp up to 100C and peaks of 120C are good enough and you don't get the built in expansion "play" of the C3 bearing.

tangoray

resurrecting this thread.... How are your guys bearings holding up??? changed my aux belt yesterday and the tensioner pulley has a LOT of play... funny enough absolutely no warning of this though. no strange sounds nothing anyways, I think replacing the bearing is the option I want to go for rather than pay £75 for a new pulley.

BenRNBP

Yep, still going strong for me, I did only replace the idler but I do have the other one ready to fit to the tensioner as that as started a bit of a harmonic at start up.

JMoura

Unfortunately I had to buy a new pulley as mine literally cracked when removing the old bearing!

s2kmac

Hey @benRNBP, if you're still around and you get this message how are / did the bearings hold up?

BenRNBP

I missed this post - sorry for the delay. Still going strong, no play or noise but to be fair I only put on about 2K miles per year - still got the other one to fit to the idler but concerned about shearing the bolt/snapping the tensioner so adopted the "if it ain't broke, don't fix it" methodology