The rebuild begins....

jimxms
Posting Freak

2,473

24-06-2019, 04:02 AM

#21

Phil01 Have you found any wear in the bearings or housing at all Jim

A couple of the bearings have some sideways play in them. I've also noticed that one of them rotates 3/4 of the way round then gets caught slightly.

The rest I think probably just needed a clean as they feel quite gritty.

Fingers crossed tge new ones will make a noticeable difference.

jimxms
Posting Freak

2,473

27-06-2019, 05:52 PM

#22

Back on task again after a few days away. Managed to FINALLY separate the volute housing from the impeller. Had to go in the oven for 30 minutes and was sprayed with plots of plusgas.

[Image: l_volute.jpg]

Now need to get the impeller off so I can pull the bearings. Then its just a matter of ordering some new seals, a few bearings and putting it all back together again.

Rabster
Posting Freak

10,234

27-06-2019, 05:54 PM

#23

you got a few weeks to sort it before JAE mate i hope to see it there.....

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jimxms
Posting Freak

2,473

27-06-2019, 05:55 PM

#24

Rabster you got a few weeks to sort it before JAE mate i hope to see it there.....

Aye I'm using every spare moment to try and get this done in time. I wanna be there and be boostin Wink

lex2oos
Member

138

28-06-2019, 11:36 AM

#25

mark the impeller somehow, somewhere.
dunno about chargers but in turbos they are balanced and must be rebalanced if not put together right.
hope you understand Big Grin

jimxms
Posting Freak

2,473

30-06-2019, 05:11 PM

#26

So my replacement bearings turned up today. I thought I would need a press to get them back on, but as it turns out I managed to use the gear puller (in reverse) with a bit of improvisation to push the bearings back on again

Oil slinger with its new bearings..
[Image: l_slingeron.jpg]

Input shaft with its new bearings on...
[Image: l_inputon.jpg]

Impeller shaft with its new high speed bearings on. I still need to sort part of this out though as one of the housings from the old bearings is stuck and I cant find any easy way to remove it.
[Image: l_impelleron.jpg]

Comparing the old bearings to the new ones is night and day. The old ones feel gritty and have sideways play/ The new ones are rock solid and rotate as smooth as silk Smile

rob
Senior Member

720

09-07-2019, 01:19 PM

#27

jimxms OK, so back on topic, I had a go at removing the bolt from the pulley over the weekend. Unfortunately no matter what I used to try and hold the pulley in position, it would just end up turning when I tried to undo the bolt with my 3ft long breaker bar.

So I took it down to a local garage on Monday and with the help of 3 of their mechanics, a massive set of mole grips and an impact wrench they finally managed to get the bolt off.

Unfortunately though they didn't have a gear puller suitable for pulling the pulley off the shaft. So I had to invest in this:

It took the best part of 3 hours to set it up in a way that didn't keep slipping around. But finally....

This allowed me to get the front of the charger off so I could get to the bearings:

My intention was to note down all the serial #'s of the bearings and then try and find a place in the UK that could order them in for me. HOWEVER, Procharger the barstewards have ground off all the identification marks making it almost impossible to rebuild the unit without sending it back to them.

Luckily though, there is one site on the net that have reverse engineered the bearings and sell a kit with all the seals and bearings in for my charger. I opted for their Ceramic bearing kit which is an improvement over the OEM bearings and allows the charger to be spun at higher RPM's. The whole kit was $500 shipped to the UK, so let's hope I don't bust any of the bearings when they arrive!!!