Post by enigmas on Dec 20, 2023 10:22:13 GMT
This may only be of interest to the tech heads on the forum or those keenly interested in engine building and restoration whether it be a P5 3 litre or P5B V8
Flat Tappet Lifter Issues"
The video below outlines current issues with regard to the manufacture, metallurgy and machining of flat tappets.
The video, basically a monologue in a workshop will only appeal to those who have more than a passing interest in engine building. The owner of Powell Machine Inc outlines an engineer's perspective of the current lifter and camshaft lobe issues.
Most of the monologue can be bypassed by forwarding to 12.20 where the presenter shows a magnified enlargement of the lifter base issues that result from both poor quality metallurgy and machining.
It is interesting to note that only one company in the USA produces flat tappet lifters to the original manufacturing standards and that most known and reputable camshaft/engine builders buy from this manufacturer.
Flat Tappet Lifter Issues"
The video below outlines current issues with regard to the manufacture, metallurgy and machining of flat tappets.
The video, basically a monologue in a workshop will only appeal to those who have more than a passing interest in engine building. The owner of Powell Machine Inc outlines an engineer's perspective of the current lifter and camshaft lobe issues.
Most of the monologue can be bypassed by forwarding to 12.20 where the presenter shows a magnified enlargement of the lifter base issues that result from both poor quality metallurgy and machining.
It is interesting to note that only one company in the USA produces flat tappet lifters to the original manufacturing standards and that most known and reputable camshaft/engine builders buy from this manufacturer.