 Type 4 Engine V-Belt Info |
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| McMark |
  Jul 2 2017, 08:03 AM
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914 Freak!  Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None  |
I've always found that the V-Belts (alternator belt) that you get handed when you walk into a part store isn't quite right most times. So since I needed to find a shorter version for one of my high-amp alternator installs I figured now was a great time to finally do the research and find out what the RIGHT belt is.
Here's the final specs, which I'll update if more info comes to light: Belt Angle: 36° Belt Length: 965mm Top Width: 9.5mm My Selection based on the numbers is the ContiTech Brand. Actual installation experience to follow... And here's my methodology: First I grabbed an alternator pulley off the shelf and measured the V groove directly. This isn't particularly easy because the groove is so small, but I measured 34° (note there is a margin of error here). Belt length is farily easy based on a couple sources. The 914 PET didn't list a belt for the 4 cyl (that I could find) but I happened to have a car with a very original looking belt. VW logo and everything. It lists the length as 965mm. Also looking up the VW part number on that belt comes back with a 965mm belt length. I used a belt length calculator and entered measurements from a stock fan/alternator setup and also arrived at 960mm. Top Width is listed on my presumed-OE belt as 9.5mm. I had a 11mm top width belt here and it stands up out of the groove too much. What's Available Here's the belts I looked up for a 73 914 2.0, in a spreadsheet. I would love to add more listings to this file if you have any. Attached image(s) 
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Posts in this topic
McMark Type 4 Engine V-Belt Info Jul 2 2017, 08:03 AM
76-914 Ahah! I wondered why I felt a ridge across the... Jul 2 2017, 10:24 AM cuddyk Hi Mark,
I finally pulled the alternator and repl... Jul 16 2017, 06:09 PM peteyd Your'e the man Mark! Jul 16 2017, 07:26 PM jim_hoyland Same belt used on the BNW E 30's ? Jul 16 2017, 08:18 PM porschetub 9.5mm is common on many german cars ,many use the ... Jul 16 2017, 08:56 PM
rfinegan I have a stock 75 2.0 daily drive I can test on...... Jul 17 2017, 04:22 AM  |
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