Maico/Engray 175cc Kart engine

Scott Grundfor · Post by **Scott Grundfor** » Mon Dec 12, 2011 11:09 pm

Hi All,

Does anyone know how many degrees BTDC this engine should be set? It supposedly has 11 to 1 compression. I will try to download ad showing engine. I think it is about 26 degrees BTDC. It is a piston port induction. I stuck (melted a corner of the piston top) a piston last time out and don't want to do that again. Where can I get a standard piston and rings for it. Also, any ideas on gearing? It has 12 X 4:00 X 5 Carlisles on the rear. Lots of torque but not too much top end.

Thanks,

Scott

Rob Voska · Post by **Rob Voska** » Tue Dec 13, 2011 7:51 am

I remember one of the early kart mags had an article on them. Should be able to get a timing spec there. Might want to back it off a degree or two just to be safe.

Scott Grundfor · Post by **Scott Grundfor** » Tue Dec 13, 2011 4:23 pm

Thanks Rob,

Scott

Tom Smith · Post by **Tom Smith** » Tue Dec 13, 2011 7:06 pm

Is that the Macio center mounted directly behind the seat? If so that could be more of the problem that ignition timing. Not enough cylinder cooling.

Scott Grundfor · Post by **Scott Grundfor** » Tue Dec 13, 2011 9:31 pm

Yes, The Maico is mounted behind the seat. It was about 75 degrees the day I stuck the piston. Probably would be a good idea to have some sort of ducting? I'm not sure but it may have originally been run on Alcohol. It was put away in the early 1960's. When I got it there were twin flatback carbs instead of the 22mm Bing. I put the Bing back on.

Scott

Maico/Engray 175cc Kart engine

Maico/Engray 175cc Kart engine

Re: Maico/Engray 175cc Kart engine

Re: Maico/Engray 175cc Kart engine

Re: Maico/Engray 175cc Kart engine

Re: Maico/Engray 175cc Kart engine