ORIGINAL: radial1951
ORIGINAL: kochj
Is there anyone that has a saito 325 5cyl radial check how much play there is on the crankshaft (push/pull prop hub to see if there is much movement)
I guess I could just email or call horizon Hobby.....
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Hi
kochj, my 325 has
ZERO end play in the crankshaft. There is no visible gap at the rear of the prop driver. I'm fairly certain that the prop driver is relieved at the back and the rim actually overlaps the nose of the front of the crankcase. This also appears to be the case with the 200R3, same design.
As you have had your 325 in pieces you already know what it looks like inside, but FWIW I have collected pics from the net of the 325 innards when other owners have dismantled them for repairs. Part #31 is a crankCASE (not crankshaft) set screw to hold the idler gear shafts in place, there are 5 of them.
You may find that putting a prop on and tightening it up will pull it all up tight... the tapered drive collet is probably not seated against the front bearing. (like my EVO 7-77 was)
Quite a few radials have been converted to petrol (gas) including the ASP 400 and Saito 325 and 450. I have the links somewhere if you are interested. There are several ways to fire radial ignition systems, none of them particularly elegant as an add-on, but quite workable.
Regards, RossG
radial1951
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Thanks... and Yes I am interested....