Menu toggle

belt tensioner

K

kramit

New member
In the process of changing the water pump and belts on my 1991 S2. Am I correct in my belief that the cam belt tension is set by the spring preload in the tensioner, or does it have to be set using the tensioning tool? If this is the case ,what is the procedure for loaning the clubs tool? Thanks.
Neil
 
There are many different arguments on this mate. Some say you should use the Porsche tensioning tool even for a spring tensioner. I and many others just use the tensioner as ok. I am not advocating that you should use my experiences as carte blanche not to use one but I have changed my belts without any headaches. As long as you did the job properly you should be ok. Make sure you check the tension after some running in of the new belts.
 
When I tried to twist the belts on the new engine (old belts but they were in good condition and seemed to be relatively recent) I could turn the belt to around 80 degrees using my thumb and index finger and that had an autotensioner on. The balancer belt I could do to 90 degrees before any resistance showed up but I understand that on the balancer belt you can not even do the twist method as long at the clearance between certain rollers is correct (rcsalomns is the man to ask). The balance belt will feel loose to many when done when infact the tension will be correct.
 
You're right in saying they may look loose. The only reason for doing them is because of the water pump leak, they were done 15k ago according to the service book from the previous owner and to me they look very loose I'm sure that the right hand balance shaft is one tooth out plus there is in excess of 5mm clearance on the balance shaft belt roller.I've done quite a few cam belts on different vehicles and I would certainly set the tension tighter hence my concern that I may over tighten them.
 
You must log in or register to reply here.

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions

Disclaimer

The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.

Porsche
Lockton
Pirelli
Officially approved
Oracle Finance
WEX Esso
Collecting Cars
Back
Top