To hold the plunger up, I removed the left magneto on my O-360. This made the job very easy. Well worth the time of reinstalling and timing the magneto.
Thanks... I pushed the plunger up, but I must have let it slip off the side, no pressure :| Hope I didn't bend it. Take 2 this evening
I did finally get it installed. I started one bolt and wiggled the pump around till I could feel the plunger then pressed it into the case and finger tightened the bolts. Took a few tries, but I eventually got it. I'll need to find out about that safetywire trick next time.
But it's all installed now and running well and making good pressure.
Man I forgot how easy timing pmags is. That just takes all the PITA out of mag timing.
new pump comes with a gasket?
replaced mine a month ago, and yes, it came with a gasket in the same box.
PS
Probably because I thought it wouldn't, and ordered a gasket along the pump... wish ACS would publish such detail in their descriptions, though reading their Q&As also helps
Removing the magneto is a pretty foolproof way to to this but I’ve always smeared a gob of grease on the pin before pushing it up. Holds it long enough to get the pump in place.
In case ACS is closed, the fuel pump gasket is the same as a Pontiac V8 from 1955 to 1981. Probably various other GM applications as well.