Using play-do as a marking compound for for porting wastegate holes.
It produces a crisp, easily distinguishable line. Also, it hardens making it easier for transport to your favorite place to have the hole milled out. Which I favor over hand porting.
Helicoil the oil pump cover bolt holes as part of front cover prep.
With aftermarket covers, I've had holes strip out extremely easily. Doesn't happen everytime, but it is a pain in the ass when it does especially if the motor is in the car and the pump cover leaks. So, in an act of desparation, you decide to give it another little twist, only to discover that it does not get any tighter. If you helicoil the holes, you can get the bolts tight (no need to go crazy) ensuring a gppd seal. Also, using some hylomar on the gasket does not hurt.
Sometimes it's the little things.
Go.
It produces a crisp, easily distinguishable line. Also, it hardens making it easier for transport to your favorite place to have the hole milled out. Which I favor over hand porting.
Helicoil the oil pump cover bolt holes as part of front cover prep.
With aftermarket covers, I've had holes strip out extremely easily. Doesn't happen everytime, but it is a pain in the ass when it does especially if the motor is in the car and the pump cover leaks. So, in an act of desparation, you decide to give it another little twist, only to discover that it does not get any tighter. If you helicoil the holes, you can get the bolts tight (no need to go crazy) ensuring a gppd seal. Also, using some hylomar on the gasket does not hurt.
Sometimes it's the little things.
Go.