Porsche Enthusiasts Club Forum

It is currently Thu Mar 28, 2024 11:12 pm
Classic Line Insurance


All times are UTC [ DST ]




Post new topic Reply to topic  [ 17 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: Belts/rollers/tensioners.
PostPosted: Wed Mar 06, 2019 1:56 am 
Offline

Joined: Sun Feb 24, 2008 8:16 pm
Posts: 1866
Location: UK
TIPEC membership: 0
So it's about time I changed the belts etc on my turbo. Full kits don't always specify manufacturers, and I suspect some vendors are over charging for the convenience. The 2 Gates belts are less than £50 on ebay, but I get conflicting part numbers for the 4 INA rollers/tensioners?


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Wed Mar 06, 2019 12:42 pm 
Offline

Joined: Sat May 28, 2011 10:17 pm
Posts: 271
Location: Worcestershire
TIPEC membership: 0
Hi Pauly,

I just recently did this on my turbo and you are best searching with the Porsche Part numbers as most of the cheaper ebay sellers have the correct Porsche part number against the item.

You can also check the INA catalogue (but I think it has a few errors) -

https://porschedocs.s3.eu-west-2.amazonaws.com/pdf/INA_belt_drive_components_pc.pdf

I bought my tensioners from these folks for a pretty good price -

https://www.ebay.co.uk/itm/PORSCHE-944-2-5-Timing-Belt-Tensioner-87-to-90-INA-94410563106-Quality-New/232562738370?epid=942233707&hash=item3625d1c4c2:g:o2sAAOSwridaDAFZ:rk:2:pf:1

I still have the INA boxes from when I did mine so I've taken the part numbers off the box and entered them below :)

Timing Belt Idler Roller - 94410524104 - INA 532004310
Timing Belt Tensioner Roller - 94410563106 - INA 531072410 (there are two INA part numbers for this but it was identical to the one I removed from my car)
Balance Belt Idler Roller - 94410227706 - INA 532042110
Balance Belt Tensioning Roller - 94410202507 - INA 531005710

Cheers


Last edited by Wh1t3Kn1ght on Wed Mar 06, 2019 12:51 pm, edited 1 time in total.

Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Wed Mar 06, 2019 12:47 pm 
Offline

Joined: Tue Nov 19, 2013 11:48 am
Posts: 2729
Location: West Essex
TIPEC membership: 0
531 0060 10 944 105 631 10
531 0057 10 944 102 025 07
532 0043 10 944 105 241 04
532 0421 10 944 102 277 06
532 0048 10 944 105 241 02

balance 5463XS
Cam Belt 5094XS

_________________
1992 968 Coupe Cobalt Blue
1985 Honda VF1000 F2 Bol D'or In Silver
2013 A4 177 TDI Quattro Ibis White
2013 Volvo XC60 D5 brilliant car


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Wed Mar 06, 2019 4:27 pm 
Offline

Joined: Sun Feb 24, 2008 8:16 pm
Posts: 1866
Location: UK
TIPEC membership: 0
Thanks guys, spot on. This reminded me I'd kept the INA boxes from Promax when I changed the parts last time. Only 14k miles since, but 7.5 years. I have inspected the belts every couple of years, but anyone reading this, do as I do at your own risk.


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Wed Mar 06, 2019 4:40 pm 
Offline

Joined: Tue Nov 19, 2013 11:48 am
Posts: 2729
Location: West Essex
TIPEC membership: 0
I know a man with a 968 tip the belts are 12 years old, I stil cant get him to change them,

_________________
1992 968 Coupe Cobalt Blue
1985 Honda VF1000 F2 Bol D'or In Silver
2013 A4 177 TDI Quattro Ibis White
2013 Volvo XC60 D5 brilliant car


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Wed Mar 06, 2019 7:26 pm 
Offline
User avatar

Joined: Sat Aug 31, 2013 3:04 pm
Posts: 44
Waylander wrote:
I know a man with a 968 tip the belts are 12 years old, I stil cant get him to change them,

Show him this picture of the cracks and fraying on mine after less than half that time/18,300 miles, hopefully he'll reconsider - they looked alright when I checked them in-situ! :shock:
Image

Michael


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Wed Mar 06, 2019 8:37 pm 
Offline

Joined: Sun Feb 24, 2008 8:16 pm
Posts: 1866
Location: UK
TIPEC membership: 0
What brand are those belts?


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Wed Mar 06, 2019 9:05 pm 
Offline
User avatar

Joined: Sat Aug 31, 2013 3:04 pm
Posts: 44
The timing belt was a Porsche-branded Dayco belt (both logos printed on the belt), but I can't read what's left of any markings on the balance shaft belt. The garage who changed it said at the time that they would only fit Porsche belts, I assume the balance shaft belt was a Porsche/Dayco belt as well.

Michael


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Wed Mar 06, 2019 11:37 pm 
Offline

Joined: Sat May 28, 2011 10:17 pm
Posts: 271
Location: Worcestershire
TIPEC membership: 0
pauly wrote:
Thanks guys, spot on. This reminded me I'd kept the INA boxes from Promax when I changed the parts last time. Only 14k miles since, but 7.5 years. I have inspected the belts every couple of years, but anyone reading this, do as I do at your own risk.


Mine were last done by Promax back in 2011 (car has been off the road though for almost 5 years)


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Thu Mar 07, 2019 2:44 am 
Offline

Joined: Sun Feb 24, 2008 8:16 pm
Posts: 1866
Location: UK
TIPEC membership: 0
Waylander wrote:
I know a man with a 968 tip the belts are 12 years old, I stil cant get him to change them,


:shock: How much is a 968 head repair/cams these days?


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Thu Mar 07, 2019 8:56 am 
Offline

Joined: Tue Nov 19, 2013 11:48 am
Posts: 2729
Location: West Essex
TIPEC membership: 0
Cams are £1200 a pair, the rest with a head refurb 4K ish

_________________
1992 968 Coupe Cobalt Blue
1985 Honda VF1000 F2 Bol D'or In Silver
2013 A4 177 TDI Quattro Ibis White
2013 Volvo XC60 D5 brilliant car


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Thu Mar 07, 2019 3:18 pm 
Offline

Joined: Sun Feb 24, 2008 8:16 pm
Posts: 1866
Location: UK
TIPEC membership: 0
Waylander wrote:
Cams are £1200 a pair, the rest with a head refurb 4K ish


When I nearly bought a 968 from a Porsche Indy 11 or 12 years ago I asked him about the cams, he showed me how much he could buy them for, and I think they were about £350. Back on topic I ordered the 4 INA rollers/tensioners and 2 Gates belts today. The ebay £133 is less than the Promax kit 8 years ago.


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Thu Mar 07, 2019 4:48 pm 
Offline

Joined: Tue Nov 19, 2013 11:48 am
Posts: 2729
Location: West Essex
TIPEC membership: 0
pauly wrote:
Waylander wrote:
Cams are £1200 a pair, the rest with a head refurb 4K ish


When I nearly bought a 968 from a Porsche Indy 11 or 12 years ago I asked him about the cams, he showed me how much he could buy them for, and I think they were about £350. Back on topic I ordered the 4 INA rollers/tensioners and 2 Gates belts today. The ebay £133 is less than the Promax kit 8 years ago.


I just checked PET, the cams are now £947.00 each, so plus your head set,all the other bits and bobs for a full head refresh

Set of Valve springs 16 at £29.00 Guides and seats cut, I think 4K is a bit on the conservative side

_________________
1992 968 Coupe Cobalt Blue
1985 Honda VF1000 F2 Bol D'or In Silver
2013 A4 177 TDI Quattro Ibis White
2013 Volvo XC60 D5 brilliant car


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Thu Mar 07, 2019 7:11 pm 
Offline

Joined: Sun Feb 24, 2008 8:16 pm
Posts: 1866
Location: UK
TIPEC membership: 0
Waylander wrote:
pauly wrote:
Waylander wrote:
Cams are £1200 a pair, the rest with a head refurb 4K ish


When I nearly bought a 968 from a Porsche Indy 11 or 12 years ago I asked him about the cams, he showed me how much he could buy them for, and I think they were about £350. Back on topic I ordered the 4 INA rollers/tensioners and 2 Gates belts today. The ebay £133 is less than the Promax kit 8 years ago.


I just checked PET, the cams are now £947.00 each, so plus your head set,all the other bits and bobs for a full head refresh

Set of Valve springs 16 at £29.00 Guides and seats cut, I think 4K is a bit on the conservative side


Close to the point for sticking on a 2.7 head, some low comp pistons, and converting it to turbocharged :) .


Top
 Profile  
Reply with quote  
 Post subject: Re: Belts/rollers/tensioners.
PostPosted: Tue Mar 12, 2019 11:15 am 
Offline
Moderator
Moderator
User avatar

Joined: Sun Nov 04, 2007 8:43 pm
Posts: 12645
Location: Chatham, Kent
TIPEC membership: 4190
I have heard of 944 16V & 968 cambelt failure totaling the engine. Valves damaging bores when they clash & also the head breaks irreparably. 8V normally damage the valve guides as well as the valves.

_________________
Jim

http://tipec.net/region_southeastlondon.php

2018 Mitsubishi Outlander PHEV
2005 Porsche Cayenne S Now sold!
2000 Jeep Grand Cherokee Now sold!
2010 Mazda MX5 Mk3.5 2.0 Sport Tech
2000 Porsche Boxster S SOLD!
1987 Porsche 944 2.5


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 17 posts ]  Go to page 1, 2  Next

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 29 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group