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[Broomies Mate]

The Bottom Pulley on my V6 is knackered.

The rubber between the 'ribbed' wheel and the centre part of the pulley has gone hard, cracked and now allowing the pulley to separate.  So, another Auxiliary belt needed! (Number 3).

Now, can I re-use the existing Pulley, leaving the rubber in there and weld the two pieces of metal together??

I am friends with the owner of an Engineering company, so it could be welded and balanced without an issue.  Is it feasible as a fix?

If not, whats the part number and cost of a new Pulley?

Thankies! 

[aaronjb]

The rubber makes the pulley form what is known as a 'harmonic damper' - the idea is that the rubber absorbs some of the 'pulses' of the engine and helps prevent vibration down the crank that can accelerate bearing wear.

Opinion is divided on how much damage removing them does, and I suspect it varies very much engine design to engine design - for example I ran a solid (aluminium) pulley on one of my cars with no ill effects seen when I tore the engine apart.

Other people will tell you that your bottom end shells will last about five minutes and you'll be looking at an expensive bill..

Your call, really, I think.

[Broomies Mate]

The rubber makes the pulley form what is known as a 'harmonic damper' - the idea is that the rubber absorbs some of the 'pulses' of the engine and helps prevent vibration down the crank that can accelerate bearing wear.

Opinion is divided on how much damage removing them does, and I suspect it varies very much engine design to engine design - for example I ran a solid (aluminium) pulley on one of my cars with no ill effects seen when I tore the engine apart.

Other people will tell you that your bottom end shells will last about five minutes and you'll be looking at an expensive bill..

Your call, really, I think.

Thanks Aaron.  Your input and experience is gratefully received. 

Anyone with EPC know of a P/N and cost of a new part? 

[TestOmega]

Probably the following will fit,

http://cgi.ebay.com/ebaymotors/Saturn-2004-DOHC-3-0-V6-HARMONIC-BALANCER-BELT-PULLEY-/270629714983?pt=Motors_Car_Truck_Parts_Accessories&hash=item3f02c9bc27

Cheers.

[Andy B]

Probably the following will fit,

http://cgi.ebay.com/ebaymotors/Saturn-2004-DOHC-3-0-V6-HARMONIC-BALANCER-BELT-PULLEY-/270629714983?pt=Motors_Car_Truck_Parts_Accessories&hash=item3f02c9bc27

Cheers.

Canada is a long way to ship it from though       

[TestOmega]

I get lots of parts from UK if the seller is willing 

PS:  Andy B any comments or solution for my issue please,

http://www.omegaowners.com/forum/YaBB.pl?num=1284399130

[Marks DTM Calib]

A rare failure so second hand will be fine.

Interestingly, the 3.2 (and possibly the 2.6) used a press steel design which is a bit lighter (still has the rubber cush drive bit in it though)

[aaronjb]

Thanks Aaron.  Your input and experience is gratefully received. 

No worries - the reason I say it's largely up to you is it really comes down to .. how long do you expect an engine to last?

On the cars I've fitted them to, I've been less concerned with long-term reliability and more with performance.. when I've been concerned about reliability I've stuck with the harmonic damper

[Broomies Mate]

Can someone, anyone, offer the part number for the bottom pulley along with a price please? 

Also more opinions on welding and balancing the current pulley, even for a short-term fix...... I've seen loads of aftermarket Ally units which dont have the rubber bush, so cant see it being a major issue, but will leave it to the more knowledgeable people to educate me. 

[TestOmega]

This from UK eBay perhaps the same for you,

http://cgi.ebay.co.uk/VAUXHALL-OPEL-OMEGA-V6-CRANKSHAFT-PULLEY-GM-90-469-392-/350357171392?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item5192ea2cc0

Cheers.

[aaronjb]

I've seen loads of aftermarket Ally units which dont have the rubber bush

Exactly what I fitted to the VG30DETT in the Nissan - no shell damage after ~6000 miles, and dropped a lot of rotational mass from the crank (stock crank pulley on the Nissan weighed some 10lb!)..

[sassanach]

if you wait untill tomorrow i will check my bits pile.im pretty sure ive got one somewhere

[Proz]

Comes up with two on my Epc
Mind you i have an old 2001 version so not sure if its accurate or not .

PULLEY, CRANKSHAFT     X30XE   -08318500   PT NO 90469392
PULLEY, CRANKSHAFT     X30XE    08318501   PT NO 9228479

Hope this helps somehow 

[Broomies Mate]

if you wait untill tomorrow i will check my bits pile.im pretty sure ive got one somewhere

If you have, that would be absolutely brilliant.  I'm in Trowbridge on the 28th.  We can arrange a "The part is under the wheelie bin, drop the cash through the letterbox" type of agreement 

I'm getting it welded tomorrow as a temporary fix as I cant find a Vx dealer local to me with one in stock.

[Brikhead]

If you want good second hand then I too have one knocking around, just pay me whatever you think it will cost to post, plus a little extra to cover Pay-pal, packaging, time and effort... Would you like me to check part number and sort out a picture?