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Mike3112H

3112H repower

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Mike3112H

Hello, new guy here. I recently repowered my 1969 Simplicity Sovereign 3112H powerlift with the 22 HP predator engine. Went very well and is still a work in progress, installed a couple days ago and test drove. Very impressive engine, nearly identical to the Honda GX 670, which is what I based my flywheel adapter from. In the process of refitting the grill and exhaust, seems to be the most involved part so far. I also purchased a 48" fabricated deck that I have to mount also, I plan on using the same front mount and bail like they did OE. I want to see how it works this season and if all goes well, I'll take it apart this winter for a full restoration. Lemme see if I can post some pics

 

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Talntedmrgreen

Very cool!  That drops in there very nicely.  Has the project progressed beyond the last pictures?  Curious what mods, if any, were made to wdege it in there and how the housing and grill fit.

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720nut

Mike first welcome to the club. looking really nice, what are you planning for exhaust?

Exhaust always seems to be the biggest issue as it's looking like it's very tight .

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Mike3112H

Thanks for the welcome.

The last pic with the grill floating on is where I'm at now. Using the original tin to do my chopping on, it was All banged up anyway. I do have nice replacement grill/hood and seatpan. The flywheel adapter moved the engine forward about a 1/2-3/4" The only mod to mount was raising the engine 1-1/8", which was done useing plywood, drive shaft is nice and level. May try to spread the grill sides alittle to fit the exhaust, and make the mesh a two piece. I thought of elbowing out to stacks with raincaps, but the muffler it has is nice and quiet. So yes, exhaust and grill fitment is the biggest issue.

Edited by Mike3112H
Measurement edit
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Mike3112H

OK small update, I was able to spread the grill sides enough to make the muffler fit, it's not very serviceable and I hope the extra exhaust flange gaskets did not come with the engine because they are known to blow them, hope not. I was able to salvage half of the grill mesh, mounted the emblem a little lower, I think it looks good. I have to trim the white side tin and cut a radius in both hood and tin

Also installing a hour meter in the shroud housing. Happy so far with everything, I think I have maybe 8 scattered hours in this build. Heading back out to spend a Friday night fabricating;)

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Edited by Mike3112H
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Mike3112H

Would love stacks,... But like you said, LOUD!!!, This ol' boy is going back to work!!!

Today I fit the grill sides and hood, contoured to the muffler, when I do a repaint, I'll continue the radius on the side trim to match the hood. I gave it a good run afterwards and thatched my property, 70 degrees today and snow coming Sunday, go figure,..it ran good, but would blow alittle smoke now and then, breaking in???, Slightly overfull?, It would do it over bumpy terrain and in my Swale when tilted, I Don't know. Had a tiny leak at the brake/clutch drum, she hasn't been ran in bout five years. I'm glad I installed the engine right after purchase, so I'll be within the warranty parameters incase anything blows apart. Next will be throttle and choke placement and rewire so I can get rid of the operating panel.

 

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