 | Home > Puma (Tdci) > Vacuum Pump - Which one do I have? |
 
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17328   
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I don't think there's any way to tell the old type and new type apart, until the old type fails and starts squirting oil over the underside of the bonnet.
On an 07 you would have had the original single seal type fitted from new. If the underside of the bonnet is oil stained, it (the vac pump not the bonnet!) has probably been replaced. Replacing the vac pump is a simple job and to be honest I wouldn't bother unless it starts leaking. |
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5th Nov 2012 11:56am |
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| Regard Member Since: 08 Dec 2011 Location: RSA Posts: 251  
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Yip! And from what I have heard the new ones fail just as much as the old ones..... We had a 110 with a failed vac pump on our most recent trip in northen Botswana/Zambia. We fixed it with Pratley Steel 
Rather cary a spare with. It takes 3 bolts and one pipe to loosen and Bob's your uncle! |
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5th Nov 2012 1:49pm |
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| bpman Member Since: 21 May 2008 Location: Oslo Posts: 8069 
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you could always pm the previous owner
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5th Nov 2012 2:34pm |
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| Go Beyond Member Since: 30 Jan 2012 Location: Headcorn, Kent Posts: 6678
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You could but he wouldn't know it it was original or had been replaced, except not whilst he had it
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5th Nov 2012 3:26pm |
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| Phoenix90 Member Since: 04 Mar 2012 Location: Cornwall Posts: 377 
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Thanks all, i'll carry one and a set of seals as spares
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5th Nov 2012 8:20pm |
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| big steve Member Since: 24 Dec 2009 Location: hertfordshire Posts: 2456 
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I'm pretty certain but may be wrong but its only the seal that needs replacing the pump doesn't actually fail does it ?
Steve  2015 2.2 tdci hardtop xs
3.2 conversion DONE 238bhp and 707nm torque and thats just the start ;-P hybrid turbo in build -done ready to fit ashcroft atb in transfer box 6 speed auto in build |
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5th Nov 2012 8:45pm |
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| Phoenix90 Member Since: 04 Mar 2012 Location: Cornwall Posts: 377
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That would make sense, but all the topics I have read on it say replace the pump and the seal together  |
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5th Nov 2012 10:06pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17328
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I don't think it's possible to remove/refit the pulley, so the seal can't be replaced.
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5th Nov 2012 10:43pm |
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| yaho Member Since: 26 Nov 2008 Location: Bialystok Posts: 200  
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I have heard the new ones leak too - but in that case one has to exchange seal only (on old ones it was whole pump).
Maybe someone here know definite answer Janusz
www.yahodeville.com |
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6th Nov 2012 7:29am |
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| big steve Member Since: 24 Dec 2009 Location: hertfordshire Posts: 2456
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I thought that the gasket is the problem it leaks and obviously gets to the pulley and spins it everywhere Hense there was a new gasket that superseded the old one with one less hole or something like that
But we all no what thought did Steve 2015 2.2 tdci hardtop xs 3.2 conversion DONE 238bhp and 707nm torque and thats just the start ;-P hybrid turbo in build -done ready to fit ashcroft atb in transfer box 6 speed auto in build |
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6th Nov 2012 9:10am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17328
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I don't think that the gasket has ever been the problem. The early pumps had a single-lip oil seal on the shaft (behind the pulley) and once crud got in and damaged the seal, would leak onto the pulley, which then flung it all over the place. Quite spectacular really! Also of course once the belt gets oily it is likely to fail, with the consequent loss of fdrive to the alternator, water pump, PAS, etc. Not good.
The later pumps have a double lip seal, so simplistically the outer lip keeps the crud out, and the inner lip keeps the oil in. On the early pumps the pulley cannot be removed without destroying it, and I thought the new type were the same in this respect. I have a spare (new type) on the shelf, if I remember I will have a look to see. I have never heard of any gasket failures. The pump is very easy to replace, but it does help if the viscous fan can be removed (removing the fan makes it easier to remove the drive belt, but is not essential). Removing the fan is not particularly easy unless you have a suitable tool to hold the fan hub, as well as a 32mm spanner. |
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6th Nov 2012 9:18am |
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