Help: Timing belt tensioner pulley

[MikyHRC]

Hi there, I cant find enough information about this anywhere. Do u guys know if the original timing belt tensioner pulley on BJX/BBU engines has the washer between the engine block and the tensioner pulley? if it does are u meant to put it on the new pulley if it doesn't come with the new kit?

The thing is that The tentioner pulley I'm looking to buy is specificely for BJX/BBU engines but doesn't come with the washer (like other pullyes for the other 1.8t engines with diffferent engine codes) this one has this circular raised section on the back of the pulley where normally washer sits and I'm not sure if that raised section is there to act like a washer or u're meant to use your old one and put it on.

1st: the picture of the tensioner for BJX/BBU (with raised section on the back ) and the 2nd one for different 1.8t engine codes with the washer. Thanks for any help.

[sambb]

I have two in the garage so I can check in a bit. From memory they dont have a seperate washer that goes under them. The BJX head has a nice machined coin sized surface that the tensioner simply bolts against. I'll check in a bit.

[sambb]

For now maybe just check that yours is for an 06A transverse engine. It could be 058 codes or north south engines that run the washer maybe?

[seangti]

I've got a Gates Timing Belt Kit K055491XS in the garage ready to go. Apparently that's all the correct gear, will know in the next week or two.

[sambb]

Ok so the pics you uploaded in the first post - my NTN Japan tensioner looks like the one in the pic on the left. See how the hole that the bolt goes through is eccentric on that central section. That's the BJX one. The bronze coloured eccentric bit isn't a washer, it is integral/pressed into the whole assembly. You use a two pin tool to set a macro tension position to the tensioner and then bolt it in place (that's the part played by the eccentric portion) and then the hydraulic tensioner that comes in the kit gets released against that silver flange on the roller to apply final running tension to the belt.
The one in the pic on the right seems to have the bolt running through the middle of the tensioner mounting surface which is deferent to the ones I've used before. I have a tensioner roller and hydraulic tensioner in boxes, all new. Youd only then need a belt and a water pump. Up to you but if you can get a price on those I'm sure I could fix you up with those bits cheap if you want, or at min you could eye ball them to get some clarity on what you're getting. They are only extras to me cos I run fixed tensioners now.

[h100vw]

No washers under the tensioners. Dropbox - polobjx.pdf - Simplify your life

[MikyHRC]

Hi Sambb

Yeah the one in the pic on the left is only for BJX /BBU engines according to part shops websites and the other one is for different engine codes apparently , so no washer then,thanks for clarifying that....I just wasn't sure coz I read somewhere on the EU forums that the original one on the BJX had washer under it (somebody mentioned) so I didn't know if I need to re-use it if there is any or what. I want to do the timing belt and water pump and all that and also the cam chain tensioner with half moon seal and maybe even oil pump, haven't had any problems with oil pressure yet but I've been advised to do it before it goes bad so I'll see how that goes...have you changed yours yet? don't even know if there is any service interval for it..but apparently they can get clogged up easily.
Thanks for the parts offered but I'm no longer in Australia, left 2 years ago, moved back home to Slovakia..used to have Polo in Sydney.
I've got little Seat ibiza cupra 1.8t BBU (same engine as polo cup edition) thats why I still check this forum from time to time...there's lot of good stuff on here, heaps of info too. Cheers

[MikyHRC]

Thanks h100vw, good stuff.

[MikyHRC]

I've got a Gates Timing Belt Kit K055491XS in the garage ready to go. Apparently that's all the correct gear, will know in the next week or two.

yeah I've seen that one, it should be the correct one...when u do it can u pls let me know if your original one was the same design as the new one in the Gates kit or if it had any washer under it ? (just curious) thanks mate.

[seangti]

yeah I've seen that one, it should be the correct one...when u do it can u pls let me know if your original one was the same design as the new one in the Gates kit or if it had any washer under it ? (just curious) thanks mate.

Ok yup, started pulling bits off last night. Won’t happen fast, but will happen.

[seangti]

yeah I've seen that one, it should be the correct one...when u do it can u pls let me know if your original one was the same design as the new one in the Gates kit or if it had any washer under it ? (just curious) thanks mate.

Hi, I got everything off last night. Yeah it's all the same as to what's on the car and the Gates kit. There was no washer under the tensioner pulley. The gear coming off feels and looks much the same as the new stuff. No signs of wear, play, etc, in any of it.

[MikyHRC]

Hi, I got everything off last night. Yeah it's all the same as to what's on the car and the Gates kit. There was no washer under the tensioner pulley. The gear coming off feels and looks much the same as the new stuff. No signs of wear, play, etc, in any of it.

Perfect, thanks mate, appreciate it...I'll be doing mine next weekend together with cam tensioner and oil pump. Hopefully it goes smoothly.

[seangti]

I'd ballsed up when putting the hydraulic tensioner on and released the bloody pin from it. I don't have a bench vice, though my tensioner seems to have quite a bit of low resistance / free play at full extension. The old, removed one is rocket solid, the new one can be compressed about 1/3 with my finger. Just checking with a few "in the know" to see if I've stuffed the tensioner, or it's faulty, or if it's safe to install.

Buggered my sunday as I had a few hours without the family to get it back together and did this...

Releasing the clamp was my fault. It was putting load the hydraulic tensioner piston against the hydraulic roller when trying to install as I didn't have a spare hand to hold the roller bit up whilst trying to get the top screw in.

So I need to validate the tensioner isn't stuffed, than compress somehow, and try again.

[sambb]

If you can push the pin back in with finger pressure then I'd say its cactus. I had one that was fully extended accidentally and I squeezed it back in bit by bit with a vice before re-pinning it. Never could have done that with finger pressure unless you are some kind of mutant rock climber. Not sure what your time line is but I have one right here brand new that I can send you. Its an NTN. I'll post it to you tomorrow if you want cos I wouldn't trust yours.