c00lduke

I was wondering if just the engine core could be tested for compression and how you guys would go about it?

Heres my idea: Take of the bell housing off the tanny and attch it the core. Put the starter in place and jump the starter.

Do you guys see any hole in this idea?

Thanks
~Luke

BigIslandSevens

iTrader: (4)

How are you going to hold it in place when turning over? I would probably do a leakdown test instead.(puts air into the engine and test the internal sealing integrity of the engine)

duboisr

That sounds good, Garfinkles friend has a test stand and a transmission they use to test and fire up motors . With out a test stand ,get a friend to help hold it down so the starter torque will not roll the motor off the oilpan onto its side . My quess is this will not happen but that is a guess .

rxrotary2_7

how did i know duboiser would bring up the name Garfinkle?!
yes attatching the trans and having motor secured will do it

sirjury

you shouldnt have to hold the engine down. we test engines out of our race cars all the time. bellhousing, starter, battery, your done. dont forget to link the oil lines.

bee

probably wouldnt happen but reminded me of when I got my first go-cart..

I was somewhere around 10 years old sitting in the garage trying to get the new motor to start, father and older brother had been trying for some time to no avail. So I go out there after dinner and attemp to start it when it was sitting on the bench.

lol... still makes me laugh

The bastard cranked right up with one pull, god damn motor ran all the way across the bench and jumped on to the floor. Wasnt funny then but its good to look back on and laugh..

I think I actually started crying.. Freaked me out a-bit..

BigIslandSevens

iTrader: (4)

That's a good story.. That is why I made the comment about the engine needing to be held. (never tried to bench crank a rotary before) When i bench test all the M/C engines and watercraft engines and snowmobile engines, I have to have them bolted to a jig to keep them from dancing around the room. Good to know you can just hook up the trans and oil lines and test it. Makes buying a used engine somewhat easier. Aloha BTW: Bee ....I bet it pissed your dad and brother off you got it started and they couldn't