• 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

Distributor internal weights/spring tension


1977 SII, 4cyl, 1bbl Holley, 4 spd T-19, D20 tc, D44 front and back. Original Holley Disto with a Pertronix module installed. BASIC.

The Scout runs fine, just looking to tweak maybe some better/smoother running efficiency?

Question: I am in the process of pulling the Disto out and "going through it". Re: the little springs that "tension" the timing weights. How loose or firm should they be? mine are just a tad short of loose, meaning that I can move the weights with very little finger pressure.

Should the be "firm"? and/or what would be the correct tension? are there replacements springs available? and do "stiffer" springs help with the timing at high RPM's?

Thanks all,


while I am at it:

would like to replace the original coil.

1. is the stock coil the same for 4 cyl or 8 cyl?
2. and/or what is the difference?

I do realize that these engines do not crank lots of horse power, just looking to maximize the stock truck. Any particular brands to use (or to stay away from)? Would a higher voltage coil work better, or just stay with stock?