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Home Page: Brian C
Naperville, IL, USA

Total Posts: 46

Engine & Torque Layout.

Brian C — Posted on The Cyclekart Club
Friday December 26, 2014 11:13 PM

So I'm trying to keep the engine mounted low.
I will be using a Max torque converter and Jackshaft.

This is my layout plan. I still need to see if all clears with the engine.
on the jackshaft.

I'm a bit close to the frame with the rope being where the chain will be.
Using a 66 tooth sprocket. Don't have the jackshaft gear yet ,so guessing at the size. did receive the sprocket and is a hair bigger then my wood cut out.

The engine mount will be centered,( off set to one side to see chain clearance.)
in the 2nd picture. I will add supports at the rails to hold frame square. Frame is not welded yet and white supports are drawn in.and not to scale.
Will also weld a support under engine plate towards jackshaft.

Last picture is the 2 pass at welding the voids and grinding.
One more should do it.

Engine will be centered.

White marks are frame

Front of rails after 2nd pass to fill voids.

Member Comments on Journal Entry: Engine & Torque Layout. ↵

2014-12-27 08:42:30 # 22596

Comment by Tom Ruth

Hey Brian- I like it! The super low center of gravity is a really good thing. I want to try and do the same sort of thing with Kart #2. The only concern I have is that the weight of the engine will put a lot of stress on that flat crossmember and may cause some substantial flexing, which will cause chains to come off. I speak from experience, as our original design for the engine mount and rear crossmember did this and caused us fits, until we just welded it all solid in desperation one day at Dennis' house. You may consider adding some sort of upper engine mount or some other contingency plan that could tie-in to the seat back or body in some way in the future (if needed) to stiffen things up a bit. Looking good though buddy.

2014-12-27 12:34:29 # 22602

Comment by Brian C

Tom, Thanks for the feedback, I am also concerned with the stress of this setup. still working it out, will post more pictures when I think its a Go!

2014-12-31 05:42:07 # 22724

Comment by Jim Donovan

Brian-- I have a lot of the 1" square tubing left over to make a nice engine support bracket. Tom is giving you good advice the motor mount plate has to be very stiff with NO FLEX because that is just why chains do not stay on the axle. And the jackshaft must be perfectly parallel to the axle. We normally will cut a piece of steel to the exactly length we measure and slide it along the axle to the jackshaft and make sure they are parallel because side load will also wear and throw sprockets quickly.We are back in business on Monday for that second and third opinion. Have a Happy New Year.Jim

2015-01-01 12:32:21 # 22751

Comment by Brian C

Thanks Jim ,In the pictures on my updated post you can see the new layout. I have ordered the engine plate, gear, and chain. So when it arrives I can see how it will all fit together.

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