Timing chain conversion to duplex

[xkkat]

Hi, Guys Thanks for all the help with this job. The crank technics kit went straight in and started up the first kick. The vacuum pump replacement drive sprocket goes straight on without removing the pump does not need The oil pump viton "O" rings are not included in this kit You need to make up a special tool to get the crank nut undone It's illustrated on this forum. I can supply dimensions if anyone needs them. The chain guide on the upper duplex chain had fatigued and broken free. it was just sitting there getting chewed up by the top chain. Can't believe it never got caught up and destroyed the engine! Lucky. Now I can hear the noisy tappets! Thanks again to all xkkat