 PSA: Trouble shooting - Check your points rubbing blocks |
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| 914rrr |
 Nov 1 2026, 10:34 AM
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#1
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Advanced Member  Group: Members Posts: 2,128 Joined: 1-July 03 From: McMinnville, TN Member No.: 874 Region Association: South East States  |
Now that I have a workable set of brakes, I've been driving my 75 1.8 a bit more often.
Last weekend I drove to a VW show. It seemed to be a bit sluggish, down on power running warm, etc. I'd bought new Bosch points and condenser and a Bremi coil to install. When I removed the existing points, they looked relatively new with a small "peak" on the the point surfaces but the 2 halves were misaligned. After I compared the new and old ones side by side, the rubbing block (insert proper name here) that rides on the distributor shaft lobes was heavily worn down, like 1/2 of its original height! It wasn't opening up the points far enough and was likely the cause of my driveability issues. Given that the "old" points looked relatively new, and given the barely drivable state the car was in when I bought it last year, I'm sure the old points haven't been driven that many miles. Q:What would cause the points block to wear that rapidly? Maybe newer and /or aftermarket points are using an inferior material for the block? The distributor shaft did look kind of gunky / corroded, so I cleaned and polished it and put a tiny dab of dialectic grease on the shaft. Q: what is the best lubricant for the distributor shaft?  |
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Replies(1 - 2)
| Osnabruck914 |
Nov 1 2026, 12:08 PM
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#2
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Member Group: Members Posts: 216 Joined: 19-December 22 From: United States Member No.: 27,038 Region Association: South East States |
There is only ONE solution for a points problem. Install a Pertronix Ignitor and never have that problem again (IMG:style_emoticons/default/smile.gif)
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| MikeK |
Nov 1 2026, 12:10 PM
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#3
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Member Group: Members Posts: 149 Joined: 15-June 23 From: 80906 Member No.: 27,418 Region Association: Rocky Mountains |
QUOTE(914rrr @ Nov 1 2026, 10:34 AM)  Now that I have a workable set of brakes, I've been driving my 75 1.8 a bit more often. Last weekend I drove to a VW show. It seemed to be a bit sluggish, down on power running warm, etc. I'd bought new Bosch points and condenser and a Bremi coil to install. When I removed the existing points, they looked relatively new with a small "peak" on the the point surfaces but the 2 halves were misaligned. After I compared the new and old ones side by side, the rubbing block (insert proper name here) that rides on the distributor shaft lobes was heavily worn down, like 1/2 of its original height! It wasn't opening up the points far enough and was likely the cause of my driveability issues. Given that the "old" points looked relatively new, and given the barely drivable state the car was in when I bought it last year, I'm sure the old points haven't been driven that many miles. Q:What would cause the points block to wear that rapidly? Maybe newer and /or aftermarket points are using an inferior material for the block? The distributor shaft did look kind of gunky / corroded, so I cleaned and polished it and put a tiny dab of dialectic grease on the shaft. Q: what is the best lubricant for the distributor shaft? Bosch point grease, if it's still available, or any high temp grease. |
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