mk1/mk2 only had 1 nut... 6' o clock position.. rest were bolts...
All you have to do to access the nuts behind the pulley is rotate the sprocket so the large holes line up with them. No need to imbalance the pulley. FWIW, vw DID balance the pulleys. When they went to the version with just one timing pin hole, they adjusted the size of the larger holes so they balance.
I'll answer my own post as it may help someone else - I made a pin from a piece of .09 stainless steel welding rod. Actual OD is .0915"I tapped one end 4-40 cause that's the smallest die I have - it's not a match to the metric threads in the metric dial indicator, but it works.OK, I'm getting a reading now when I turn the crank Now I am ready to adjust the pump but I can't get to the two 13 mm nuts through the pulley!One lines up (sort of) to one of the larger holes [BOLT 2] but I still cant fit the socket on it as it's too far off center. The other [BOLT 1] lines up with the smaller hole (opposite the one that the lock-pin goes into, and there's no way I'll get to that one.What gives - do I have the wrong pulley?I should mention that the arrow on the pulley is pointing to the center mark on top of the IP so I think I'm close on the timing and have the pulley installed correctly.Also, I have the tin covers on which I never had before and I believe the IP is from a 1.6. Giles said it will still work fine but it may be the reason the bolts aren't lining up.Either I have the wrong pulley, wrong pump, can't run the tin covers or something, please someone let me know
Quote from: Gizmoman on June 08, 2013, 12:46:46 pmI'll answer my own post as it may help someone else - I made a pin from a piece of .09 stainless steel welding rod. Actual OD is .0915"I tapped one end 4-40 cause that's the smallest die I have - it's not a match to the metric threads in the metric dial indicator, but it works.OK, I'm getting a reading now when I turn the crank Now I am ready to adjust the pump but I can't get to the two 13 mm nuts through the pulley!One lines up (sort of) to one of the larger holes [BOLT 2] but I still cant fit the socket on it as it's too far off center. The other [BOLT 1] lines up with the smaller hole (opposite the one that the lock-pin goes into, and there's no way I'll get to that one.What gives - do I have the wrong pulley?I should mention that the arrow on the pulley is pointing to the center mark on top of the IP so I think I'm close on the timing and have the pulley installed correctly.Also, I have the tin covers on which I never had before and I believe the IP is from a 1.6. Giles said it will still work fine but it may be the reason the bolts aren't lining up.Either I have the wrong pulley, wrong pump, can't run the tin covers or something, please someone let me knowGizmo----- STOP___Maybe too late but can be corrected.The 1.6 I have on my car has this same pulley and you appear to have it all correctly set up if indeed you are at TDC. There is only one 13 mm nut you have to loosen and that is the one accessible through hole two. If you have the same timing belt cover I do you will see a rubber grommet in that position and I generally just pop that out throw a deep socket on and back off the tension about 7 half turns.FOR ALL the other bolts, YES bolts I loosen them with either the socket, for the one at the bottom of the pump and a long box end for the two up top. I always save the one on the front of the IP pump for last as that it the one that I use to tighten first once I get my number on the dial gauge to where I want it. My pump moves pretty smoothly and easily so a simple meat of the hand on the Out bolt does any adjusting I need to do.Now that you have taken some of the weight off the one side of the pulley you need to make the same sized cut on the one opposite the face. That should keep you balanced. Note there are numbers on one side of the pulley and not on the other and that is the side that you have to the keyway. Correct? Just remember that and you will always get the right small hole when on TDC and not be 180 out. Sorry I took a late lunch I could have saved you the work. Had Drywall mud to finish.