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Re: New 3D-Printed 944 Timing Belt Tensioner Tool

Posted: Sun Oct 29, 2023 9:44 pm
by nagykurva
Tom are you still printing ?
This seems like the perfect tool I need.
If not no worries, but after reading 23 pages of discussion for someone using this once a year what material would you recommend?
I was looking at craftcloud that one of the members used and there are a crazy amount of options and I have no understanding of 3D printing…
I did the hand method and things aren’t sounding too hot!

Re: New 3D-Printed 944 Timing Belt Tensioner Tool

Posted: Tue Oct 31, 2023 10:49 am
by andrewsutton14
I am interested in getting the file to have this tool printed. How accurate is it for adjusting the belt tension?

Re: New 3D-Printed 944 Timing Belt Tensioner Tool

Posted: Tue Oct 31, 2023 10:54 am
by Tom
nagykurva wrote: Sun Oct 29, 2023 9:44 pm Tom are you still printing ?
This seems like the perfect tool I need.
If not no worries, but after reading 23 pages of discussion for someone using this once a year what material would you recommend?
I was looking at craftcloud that one of the members used and there are a crazy amount of options and I have no understanding of 3D printing…
I did the hand method and things aren’t sounding too hot!
I'm about to print/assemble a small run of these for a modest fee. If you want in on that, send me an email at admin@carpokes.com or PM me here. Thanks.

Re: New 3D-Printed 944 Timing Belt Tensioner Tool

Posted: Tue Oct 31, 2023 11:00 am
by Tom
andrewsutton14 wrote: Tue Oct 31, 2023 10:49 am I am interested in getting the file to have this tool printed. How accurate is it for adjusting the belt tension?
I believe it to be accurate, based on back-to-back testing and calibrating against the factory tool. It's obviously not a precision instrument like the factory tool, but I'd argue the factory tool and process gives a false sense of precision since so many uncontrolled variables go into the final reading (tool placement, exact back-up amount, temps, etc.).

Re: New 3D-Printed 944 Timing Belt Tensioner Tool

Posted: Tue Nov 14, 2023 12:19 pm
by idealcheese
Hi there! Thanks so much for making this 3D file available for free. I watched your video on Youtube and if I understood correctly, I would need to guesstimate the tension and use the tool to check it until the click happens at the right spot? Sounds pretty easy! And a great way to avoid spending a ton of money on the Porsche tension tool.

I would like to add another vote for a 3D printable balance shaft belt tensioner. At the moment my 944 has been in and out of a local mechanic who I suspect is less versed in the 944 as he claimed to be—shortly after a water pump and belt replacement a major coolant leak happened and the balance belt got shredded to the point that the inner nubs basically wore off. I was having major vibrations through the shifter, I assume because the balance belt was wacko. Took it back to the mechanic who said the water pump failed, leaked coolant on the belts, and caused the wear on the balance belt. He replaced everything for me, but the vibrations were still really unpleasant. I checked the lower BS sprocket and found he installed it upside down, which I hope is the reason for the vibrations. The car is currently back at the shop, and I gave the mechanic the relevant pages about the BS belt from the shop manual just to make sure.

Long story short: when I get the car back, I would like to be able to verify the tension on the BS belt myself, so such a tool would come in very handy.

Re: New 3D-Printed 944 Timing Belt Tensioner Tool

Posted: Tue Nov 14, 2023 12:22 pm
by Tom
idealcheese wrote: Tue Nov 14, 2023 12:19 pm Hi there! Thanks so much for making this 3D file available for free. I watched your video on Youtube and if I understood correctly, I would need to guesstimate the tension and use the tool to check it until the click happens at the right spot? Sounds pretty easy! And a great way to avoid spending a ton of money on the Porsche tension tool.

I would like to add another vote for a 3D printable balance shaft belt tensioner. At the moment my 944 has been in and out of a local mechanic who I suspect is less versed in the 944 as he claimed to be—shortly after a water pump and belt replacement a major coolant leak happened and the balance belt got shredded to the point that the inner nubs basically wore off. I was having major vibrations through the shifter, I assume because the balance belt was wacko. Took it back to the mechanic who said the water pump failed, leaked coolant on the belts, and caused the wear on the balance belt. He replaced everything for me, but the vibrations were still really unpleasant. I checked the lower BS sprocket and found he installed it upside down, which I hope is the reason for the vibrations. The car is currently back at the shop, and I gave the mechanic the relevant pages about the BS belt from the shop manual just to make sure.

Long story short: when I get the car back, I would like to be able to verify the tension on the BS belt myself, so such a tool would come in very handy.


Yes, that's correct about guesstimating and then checking. The factory tool works the same way. Agreed on the b/s tool -- I need to get on that. :)

Re: New 3D-Printed 944 Timing Belt Tensioner Tool

Posted: Wed Nov 15, 2023 4:58 am
by Mac
Thanks for creating this -

Re: New 3D-Printed 944 Timing Belt Tensioner Tool

Posted: Wed Nov 15, 2023 2:55 pm
by hlinhd
Making a post to get access to the file to try!

Re: New 3D-Printed 944 Timing Belt Tensioner Tool

Posted: Thu Nov 16, 2023 9:43 am
by Osocyc
Thanks!

Re: New 3D-Printed 944 Timing Belt Tensioner Tool

Posted: Mon Nov 20, 2023 12:51 pm
by Ton_B
Hello,
I will test it on my 944, it seems to be a proper tool