After some ups and downs over the past week, and the engine knocking, I decided to check the points again.
After checking and trying to regap, I found that the points set screw was stripped. So, I’m thinking now that the problem with the engine knock was the points not being seated properly(or bouncing around) instead of the marine gas.
Stripped points screw? So what’s the fix? Found one other rebuilt 021 905 205 P but at $175, need to hold off for now. I decided to move up one screw size and went with a stainless steel 8/32″ screw. The smallest length I could find was 1/2″.
Since all of my tools are packed up for an upcoming move, I used two nuts and a hacksaw to try and get the screw to about the same length as the OEM …about 3/16″. After trimming and filing, tried in the distributor and it fit. Reset the gap as close to .016 that I could… was a little difficult since when tightening, the gap would get smaller, so used a larger gap, then tightened.
After resetting, went ahead and checked the dwell which was at 51°. The range should be from 45° to 52°, so after the big flub up several days ago, I decided to leave at 51°.
Grabbed the timing light but couldn’t remember the settings exactly so got the timing close and cranked it and she purred just like before, but this time, without the engine knock. Great birthday gift for the day. 🙂
After finally getting the distributor issue resolved, decided I’d break out my new dwell meter and check the dwell prior to setting the timing. After using a points gap of .016, the dwell turned out to be 50°. But that wasn’t good enough for me, so tried to get it down closer to mid-range of 47°-52°.
Big mistake. After setting a gap of .018, to get the dwell down, I couldn’t get her to start.
I was almost out of gas, so decided to use some fresh marine gas that I recently picked up during the recent hurricane scare.
After adding gas, and resetting the points again, I finally got her started again, BUT … I was getting a horrible engine knock from passenger side of engine. Though it was going to throw a rod.
Went to bed and it dawned on me the next day that I had added the marine gas and maybe that was the issue for some reason. I didn’t think of the gas being an issue as I had used non-ethanol gas in to before with no problems.
I drained the tank and picked up some fresh regular unleaded gas.
Since pulling the distributor for cleaning and painting, it was time for reinstallation. Since bumping the motor over a few times in the past three years, I had to find TDC. Pulled the #1 spark plug, checked the piston position, had my fan mark at TDC and inserted the distributor. Already had the points set to .016, bolted everything up and all is good. I set the timing by memory of where it should be.
I go ahead and crank it and after a few cranks, it fires right up and is running. Tweak the distributor a little to smooth it out.
Turn the engine off for a few minutes and then go back to restart it. No start. Turns over but no cranking. Pull the distributor cap and find that the distributor shaft has totally disengaged from the engine gear.
I pull the distributor and try everything again. Same exact scenario. After posting on VWSamba and thinking about over night, pulled the distributor and saw the problem. I had tightened the timing hold down first and then bolted the distributor in. The problem with that is there was a very small gap(see below) of about 3 sheets of paper that were causing the distributor to not fully seat into the engine gear, even though the distributor hold down was totally flush with the engine block.
After loosening the timing bracket, inserting the distributor, tightening the hold down, THEN tightening the timing bracket, it started right up not once, not twice, but every time. Problem solved…at least for now.