serviced supercharger noisey

GAF2 · October 07, 2009, 04:14:55 PM

finally got my charger back from jabba after 3 weeks and have fitted it back to the car and at idle every 3-4 seconds there is a clonking/ rattling noise. Any ideas could it be a loose bearing or do i just need to run it? REALLY dont wont to have to send it back because another 3 weeks of excuses will do my head in.

cheers for any input

grant

quiksilver_jake · October 07, 2009, 04:46:33 PM

i had the same with mine after a psd rebuild 100 miles later top bearing went bang through scroll and casing ! faulty bearing but in true psd style it was not his fault and money went missing ... id get onto jabba !

PeteG40 · October 07, 2009, 05:47:23 PM

bearings aren't really loose in a charger - they can be noisy tho - but that tends to be when worn

GAF2 · October 07, 2009, 06:53:07 PM

what about timming if thats was out would it just implode straight away or could u get banging noises?

PeteG40 · October 07, 2009, 07:18:17 PM

normally would explode!!!

check other threads on here - some people have found a lack of oil... or it could be debris in your charger - therefore be damaged.

SuperMario · October 07, 2009, 08:22:40 PM

Ive just ran my charger in after going to jabba, started with no noises gone 500ish miles and sounds the same, get on to them, and 3 weeks? really took 5 days with me.

PeteG40 · October 07, 2009, 09:18:51 PM

on a jabba reciept i had, i'm sure it said guarantee was not valid if bearings fail as was out of their control - so jake both PSD or Jabba wouldn't have honoured a guarantee. Bit sh1t mind. I'd get it back to them anyway. Normally its the top bearings which are only about £10 each tops - better £20 than a whole charger.

SuperMario · October 08, 2009, 05:05:26 PM

Quote from: PeteG40 on October 07, 2009, 09:18:51 PM
on a jabba reciept i had, i'm sure it said guarantee was not valid if bearings fail as was out of their control - so jake both PSD or Jabba wouldn't have honoured a guarantee. Bit sh1t mind. I'd get it back to them anyway. Normally its the top bearings which are only about £10 each tops - better £20 than a whole charger.

i never noticed this, pretty stupid if its true, ill go have a look now...
EDIT

No mention of it being void if bearings fail, plenty other reasons tho.

PeteG40 · October 08, 2009, 06:15:19 PM

might have been an older one, but i'm sure it says something like 'manufacturing out of our control'

it means if they buy a bearing and its fecked... then its not their fault

Dan · October 08, 2009, 08:50:02 PM

Garuntee not valid because it is out of their control. So they didn't make the parts they fitted, clearly. Then they must not have enough confidence to back up the parts they do use with any garuntee.

Since they don't make the chargers, bearings, oil seals, apex seals, timing belts, consumables etc what are they garunteeing ?

I have heard that the end bearing (Outlet side) isn't always replaced at some places. What happens if this is worn and wasn't replaced ?

PeteG40 · October 08, 2009, 09:41:35 PM

not much but i have seen the outlet bearing + seal not replaced. ANd an r1 with the original (which arent now available) centre bearing. unsurprisingly the charger was knacked

tdh-syorks · October 09, 2009, 08:04:02 AM

it could be a brand new bearing, we've had loads of brand new bearings at work fail within the first hour of use. it could be that if they have used a press to insert the bearing instead of sweating it in it may not be square, this will cause a massive load on the inner race which it could only put up with for so long before it work hardens and cracks. at work they tend to explode, and this isnt good at all in an aluminium casing.
i'd get in touch with jabba for a replacement bearing fitting correctly.

Fred · October 25, 2009, 11:18:53 AM

Aggreed Tom.

Quite often the presses that Garages/workshops use are fabricated, as in welded together.
When steel is welded it pulls with the heated metal shrinking when it`s cooled down.
Rareley have i seen one of these presses where the press is at a true 90* from the bed
and the beds are never machined flat after welding them together unless they are a very expensive Hydrolic machine shop press.

I used to work at Foulds lifts and made a lot of lift electric motor beds from very substantial
steel.
It was near impossible to get them level so they we`re bolted down to a huge planer
wich had a fixed like Lathe cutter above the motor bed and the hole bed of the machine
slid back and fourth at some speed while auto feed traversed it sideways.

The result is a perfect flat bed to wich the moter bolted and totally Vibration Free.

So Hence if the bearing is pressed in on a garage type press then may well not be true.

When i used to rebuild my Moto X engines i used to fix the casings to a milling machine bed and with a turned tool levelled up i wound up the base of the miller with the manual handle to press in the bearings.
I also use this method these days to press in valve guides and have never had issues with the end result.

Hence the best method if you are not confident or have the skill or patience then have Peteg40 rebuild them for you.

I have no reason as yet to doubt his work or honesty and would have him rebuild my charger before sending it to some firm like jabbersport who have many a complaint/concerns about there work.

Quite frankly! I don`t trust any garage out there unless i can stand over them while they do the work. But then i end up pissing the guy off for telling him how to do his job because he`s a PIKEY GIT.

Tom!, we need to design a tool that inserts in the outlet bearing and then removes it for replacment. I have idea`s for this.

Fred.

PeteG40 · October 25, 2009, 12:10:45 PM

you can use a blind puller for the outlet - or my method - hot air gun.. they just plop out!