Fa-90

[BJuby]

Acquired another looper a couple weeks ago. An "A" in excellent shape. I am having pistons made and rings sized and fitted for it. Also, the cage that it came with blew a corner (probably the cause of it being retired) and I am having another one machined to replace it from a Mark 25 cage. I have an NOS Mark 25 crank for it. I will also be getting 16:21 gears for it and likely a thunderbolt style ignition, but the ignition system it came with is pictured below. Also if people could please keep an eye out for an appropriate flywheel for the "A" looper. I have some of the belt driven flywheel hubs (which I will need for thunderbolt ignition), but their tapers are huge, not correct for a Mark 25 crank. Thanks and enjoy.

[BJuby]

I am still in search of a flywheel for FA-90. Please direct me to anyone that might have one if you know. Both loopers FA-90 and FD-53 were sent out for piston and ring fittings. Thanks a lot.

[BJuby]

Some pictures just came in from Steve, who is making the pistons for FA-90

[BJuby]

Got the front and mid crank cases back with modified Mark 25 cage along with head back today. The crankcase cleaned up very nice. A sharp eye can see that on the front of the front crank case there is a number 90, which coincides with the block serial number FA-90.

[John Schubert T*A*R*T]

I am still in search of a flywheel for FA-90. Please direct me to anyone that might have one if you know. Both loopers FA-90 and FD-53 were sent out for piston and ring fittings. Thanks a lot.

Brandon,

Not sure I remember which 2 cylinder motor but Merc made one that the hub bolted to the rest of the flywheel & the taper was the same as the MK25 crank. I've used them on my Loopers. You can also take a regular MK25 crank & have it machined, and if you go with the Thunderbolt ignition system, you'll nee to have the outer diameter of the base machined & pinned to accept the pulley for the belt

[BJuby]

Thanks John. Steve found us a flywheel hub with pulley and is fabricating a rope sheave for us. I will be using the battery driven mercury system for this engine, just like the A looper you had (which by the way looked very nice).

[BJuby]

For some reason wouldn't let me attach photos and text, weird. Anyway. Pistons are finished, rope plate is also done. Next is ignition adapter plate.

[BJuby]

[BJuby]

Some work on the A looper. Got the reed cage together and assembled on the Mark 25 crank. Next I will be installing both top and lower bearings and checking for end play. This is all with the pistons removed, I removed them after I checked the way the washers I had fit.