• 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

IH lifter rattle syndrome, What is it and do I have it?


New member
Cool. Thanks!

I just picked up some rotella 15w40 and a new filter.

I'm also going to pull the rear cam plate and see if there is anything I can see going on in there. Maybe I can run a bore brush in the lifter galleries.


New member
Thinking I May have an obstruction in the lifter gallery I decided to take a look. I pulled the rear cam plate and found what looks like excessive bearing clarence. This sucks! I thought the oil looked a little cloudy when I changed it. It looks like my lifter tick will only get worse unless I change the cam bearings.


Robert Kenney

Super Moderator
The other bearings are probably no better. The rear one we see in your photo is installed to far aft in the block. It should be seated below the plate mounting face about 1/16 and needs to be flush with the rear of the cam. This opens the flow channels that feed the lifter galleries and lines up the oil groove in the cam with the oiling features in the bearing.. There is no need to grind a notch on the bearing for the oil channels. Simply install it correctly. Most engine builders not familiar with this IH oiling system will get it wrong. See this post for more detail on positioning the bearings.
This member suffered a similar bearing failure but all of the bearings seemed to be installed correctly.



Care to mention who the builder was? Was there any pre-build discussion regarding their prior sv8 build history?