Timing Belt Tool
01-11-2010, 10:32 AM
#1
Three Wheelin'
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Timing Belt Tool
Hi,
I recently joined the 928 owners club with the purchase of a 1987 S4 with 70K miles. The car is in good shape, but not perfect (yet) :-).
One issue I need to tackle is that the timing belt tension light comes sometimes - no regular interval that I could see. I was told the belt was changed at 58K miles. I would like to check the belt tension.
What tool would one recommend. I know there are three or four tools out there, but they seem to be harder to find than previous posts from other years suggest.
What are your thoughts on obtaining a tool to do this.
Thanks,
aaddpp
I recently joined the 928 owners club with the purchase of a 1987 S4 with 70K miles. The car is in good shape, but not perfect (yet) :-).
One issue I need to tackle is that the timing belt tension light comes sometimes - no regular interval that I could see. I was told the belt was changed at 58K miles. I would like to check the belt tension.
What tool would one recommend. I know there are three or four tools out there, but they seem to be harder to find than previous posts from other years suggest.
What are your thoughts on obtaining a tool to do this.
Thanks,
aaddpp
01-11-2010, 10:36 AM
#2
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aaddpp,
The best tool is the Kempf Tool and you can buy this from a number of the 928 suppliers.
On your car the check is on the tight side of the window. This will become clear to you when you use the tool and follow the instructions.
We sell the tool for $58.95.
Roger
The best tool is the Kempf Tool and you can buy this from a number of the 928 suppliers.
On your car the check is on the tight side of the window. This will become clear to you when you use the tool and follow the instructions.
We sell the tool for $58.95.
Roger
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Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
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928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
01-11-2010, 10:45 AM
#3
Rennlist Member
aaddpp,
Welcome! And congratulations on your new S4!
Where are you located? And please tell us a bit more about your car, maybe a picture or two.
If the timing belt light is coming on, then this needs to be investigated. It might just need tightening, but it may also be an indication of problems with the tensioner, water-pump or the belt itself.
Welcome! And congratulations on your new S4!
Where are you located? And please tell us a bit more about your car, maybe a picture or two.
If the timing belt light is coming on, then this needs to be investigated. It might just need tightening, but it may also be an indication of problems with the tensioner, water-pump or the belt itself.
01-11-2010, 01:13 PM
#4
Three Wheelin'
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jcorenman,
I am based in New York, and will try and get some photos to post. For now, its a black on black five speed with the standard factory wheels. Everything is original on the car (including the radio) which is what I was looking for - a bit of a purist I guess. The only change I might make is a set up cup wheels, but that's down the line.
I think you are right about the timing belt issue. It could be more, but I want to start at the belt first since this is the easiest place to find a solution. I also think it could be the sensor since heavy driving / cornering tends to set it off -- wouldn't that be a nice surprise if it were that simple.
At any rate, I never bought the 928 thinking it was going to be a new, trouble free car...the quirks are part of the fun associated with owning the classics.
Roger, thanks for the tip - I will mostly likely pick one up.
I am based in New York, and will try and get some photos to post. For now, its a black on black five speed with the standard factory wheels. Everything is original on the car (including the radio) which is what I was looking for - a bit of a purist I guess. The only change I might make is a set up cup wheels, but that's down the line.
I think you are right about the timing belt issue. It could be more, but I want to start at the belt first since this is the easiest place to find a solution. I also think it could be the sensor since heavy driving / cornering tends to set it off -- wouldn't that be a nice surprise if it were that simple.
At any rate, I never bought the 928 thinking it was going to be a new, trouble free car...the quirks are part of the fun associated with owning the classics.
Roger, thanks for the tip - I will mostly likely pick one up.
01-11-2010, 01:40 PM
#5
Team Owner
OK in the mean time since the belt light is coming on then you should not run the engine till the belt is inspected and the tension checked.
Your literately one turn of the key from crashing the valves, you have been warned.
If you can provide any more service info that would also be a good thing to assist in a better diagnosis
Your literately one turn of the key from crashing the valves, you have been warned.
If you can provide any more service info that would also be a good thing to assist in a better diagnosis
01-11-2010, 02:35 PM
#6
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^^^^ What Stan said.
The belt is 'tensioned' by an oil-damped piston-style tensioner using a stack of Bellville spring washers. Lots of discussion on function of that tensioner. Bottom line is that the belt is 'flapping' when you run it at higher RPM's, and the tensioner isn't able to compensate. Belt may be stretched or the parts may be worn. Either way, you'll likelyhave a cover or two off, check the belt tension, refill the tensioner only after you've inspected it, and most likely decide to do a full belt/roller/tensioner service just for your own peace of mind.
At the top of the front page is a 'read this before your first post' section that has a ton of great info for new or prospective owners. Timing belt issues for new purchases are covered in a couple threads. These particularly should go on your 'required reading' list. You'll also want to get to know the regular 928 parts vendor sponsors here, so you don't go broke at the dealer in the first month or two of ownership. Almost all of the used cars I've looked at have an extensive list of things needed to get all the maintenance stuff up to date. While the front of the motor is off for the timing belt, it's a convenient time to do baseline services on the cooling system hoses and reservoir cap, heater valve, the ignition system, accessory belts, power steering reservoir/filter and hoses, plsu of course all the filters and fluids. Then on to other criticals like brakes. The on to cosmetics from there, after the potential reliability stuff has all been managed.
Get a set of the workshop manuals on CD if you can't find a paper set. Check out the tips sites listed in the new users section. Get to know your 928-owning neighbors by posting your location. Others nearby will chime in, and soon you'll have some new local friends who can help guide you when needed.
Enjoy your new toy!
The belt is 'tensioned' by an oil-damped piston-style tensioner using a stack of Bellville spring washers. Lots of discussion on function of that tensioner. Bottom line is that the belt is 'flapping' when you run it at higher RPM's, and the tensioner isn't able to compensate. Belt may be stretched or the parts may be worn. Either way, you'll likelyhave a cover or two off, check the belt tension, refill the tensioner only after you've inspected it, and most likely decide to do a full belt/roller/tensioner service just for your own peace of mind.
At the top of the front page is a 'read this before your first post' section that has a ton of great info for new or prospective owners. Timing belt issues for new purchases are covered in a couple threads. These particularly should go on your 'required reading' list. You'll also want to get to know the regular 928 parts vendor sponsors here, so you don't go broke at the dealer in the first month or two of ownership. Almost all of the used cars I've looked at have an extensive list of things needed to get all the maintenance stuff up to date. While the front of the motor is off for the timing belt, it's a convenient time to do baseline services on the cooling system hoses and reservoir cap, heater valve, the ignition system, accessory belts, power steering reservoir/filter and hoses, plsu of course all the filters and fluids. Then on to other criticals like brakes. The on to cosmetics from there, after the potential reliability stuff has all been managed.
Get a set of the workshop manuals on CD if you can't find a paper set. Check out the tips sites listed in the new users section. Get to know your 928-owning neighbors by posting your location. Others nearby will chime in, and soon you'll have some new local friends who can help guide you when needed.
Enjoy your new toy!
