• To ALL forum users - As of late I have been getting quite a few private messages with questions about build ups here on the forum, or tech questions about your personal project. While I appreciate the interest, sending me a private message about these topics distracts from, and undermines the purpose of having a forum here. During the day I wear many hats as a small business owner-operator and I work tirelessly to provide the absolute best service possible to you, our valued customer. When I created this forum I rounded up some of the best minds I knew so that any tech question you might have could be asked and answered by either myself or one of my highly experienced moderators, this way the next time this same question is asked the answer can be easily found and utilized by the next IH enthusiast having the same question. This allows me the freedom to run the day to day operations of the business and minimize the impact to shipments and shop activities that these distractions can cause. It is of the up most importance for me to complete the daily tasks in order to best take care of you our customer, all the while providing you a forum to get the level advice and input you have come to expect and deserve from the premier IH shop in the country.

    So with that I ask that anyone with a question about one of our build ups or a general tech question to please use the forum as it was intended. I am absolutely available by telephone to answer your questions as well but at times may direct you back to our website to better field your question or questions. Most other private messages I will be glad to answer for you.

    Thank you for your understanding.

    Jeff Ismail

Change 1977 345 to Prestolite points distributor?


Well, was doing some more reading and may have stumbled across the problem....ME! I was NOT verifying that it was the compression stroke....just that there was pressure pushing back against my finger in the number 8 spark plug hole. So I could have been at the top after the power stroke, instead of where I should be...at the top of the compression stroke. Hope I haven't done any damage. I've got the exhaust manifolds off now soaking in some rust remover and will re-stab the distributor once I've got those painted up and back on....this time on the compression stroke.


That's how you know you're on the comp stroke is by the air forced out of the vacant plug hole. If the piston was then at the top of the stroke as correlated by a piece of dowel rod or screwdriver to indicate peak upward travel, in combination with seeing the timing scribe very near 0 on the index, then that piston is at TDC on the comp stroke. From there it comes down to how far the distributor gear may have rotated as the distributor was inserted, and how closely aligned the rotor was under one of the holes on the distributor cap. That would be where the #8 plug wires goes.