[Shiny]

Originally Posted by Formulas

I have ONE somewhere thats almost solid, its not built like a C its just like you rolled up thick sheet metal as tight as you can, ...

Yes, coiled vs slotted as in the Spirol paper I linked

If theres no deformation obvious wear from slop and it fits tight then it basically has all the properties of a new one

Agree

I do replace mine because i have an assortment box of pins

Good insurance

Now does anybody sweat installation of a roll pin rotationally speaking?

Are you asking if the roll pin is a reliable way to retain the gear and transmit rotational loads? If so, then you may be stepping into all the cam and oil pressure threads! I haven't seen postings of sheared off roll pins but I guess it could happen if the torque to drive the oil pump somehow went ballistic? Seems we have seen some oil pump shaft carnage on PY but has anyone ever experienced a roll pin failure?

Mike

[64speed]

Originally Posted by Shiny

Yes, coiled vs slotted as in the Spirol paper I linked



Agree



Good insurance



Are you asking if the roll pin is a reliable way to retain the gear and transmit rotational loads? If so, then you may be stepping into all the cam and oil pressure threads! I haven't seen postings of sheared off roll pins but I guess it could happen if the torque to drive the oil pump somehow went ballistic? Seems we have seen some oil pump shaft carnage on PY but has anyone ever experienced a roll pin failure?

Mike

Yes but in a Ford and no carnage, distributor quit spinning and shut the engine off.