Putting together a BMW m20 but I can't find a definitive on which way the pistons goo in. Is the larger relief cut in the piston top supposed to go on the intake or exhaust side?
Putting together a BMW m20 but I can't find a definitive on which way the pistons goo in. Is the larger relief cut in the piston top supposed to go on the intake or exhaust side?
Are these pics helpful?
There should be a mark on the piston top showing front. If not, I'd say the larger valve relief would go to the larger valve, but thats just a guess.
Thanks for the pics! That is how I thought they should go in but a second opinion was good insurance! Thanks!
Larger toward the intake as it is the larger valve as it is drawn in where exhuast is pushed out.
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