Author Topic: McCULLOCH KART RACING 1962  (Read 1224 times)

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Offline Al Smith

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Re: McCULLOCH KART RACING 1962
« Reply #10 on: September 10, 2014, 05:19:04 am »
For those who do not know in that picture it showed the typical "bango bolt " set up they used on hopped up PP engines to keep from blowing the heads off .I've seen that done using 4 bolts .

Yes Rupp was in Mansfield .Neal Machine in Lima made the famous "charlie "kart .

Offline mcbob

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Re: McCULLOCH KART RACING 1962
« Reply #11 on: November 02, 2014, 02:26:36 pm »
The reason behind the Bango bolt as Al stated was to keep the head on as once the engine was given not only a radical port job and rebore they were prone to blowing their stack same as the macs.

Mac Girdle kits
http://macbobaust.com/mcgirdle.html

Besides Westbend or US motors offered a replacement 60 thou oversize piston to suit the 820 engine that's when fitting the girdle became important

McBob
I am a idiot so my pics disappeared.

Offline 660magnum

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Re: McCULLOCH KART RACING 1962
« Reply #12 on: November 02, 2014, 02:49:05 pm »
Old memories of the ones I raced but some of these have newer parts on them.

http://www.vintagekart.4t.com/photo_22.html

Gokart 800 as I remember it. It had VW peddles. I thought it was the best for what I was interested in.


There was a Simplex Challenger

And a Dart Kart Road Runner and the Rupp factory is less than 10 mi from where I've lived the last 43 years. The building is still there and it's a metal fabrication company but Rupp went out of business by the mid 70's.
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Offline Al Smith

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Re: McCULLOCH KART RACING 1962
« Reply #13 on: November 02, 2014, 08:52:53 pm »
I don't recall ever seeing a Mac engine with banjo bolts but have no doubt there were some .Horstmen or Wiseco made an overbore piston for some model of McCulloch up to 100 thou over  size .Usualy though on a rebore they took it up 2 to 5 thou .Whatever it took to clean up the cylinder .

Now on the 100 thou over I'm not certain if they put in a new sleeve or not because 100 thou would not leave much meat left on the cylinder wall ..I doubt seriously if that size overbore was used much .

They had stroker full circle crankshafts and just all kinds of goodies that are nearly nonexistant today .

The life of a full blown kart engine was normally less than one hour total running time between rebuilds .Less if they came apart like a dollar watch which they did on occasion .It was just unbelievable how much power they could get out of them and that was 50 years ago .

Online Buddy

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Re: McCULLOCH KART RACING 1962
« Reply #14 on: December 04, 2014, 08:32:15 pm »
Brings back memories.
I have one of those Power Products AH-82 engines.
Think is all stock . The thing has been in the garage attic 
at my parents house for 40 years or better.
I have not even thought about it for years till I seen this post on carts.
Buddy

Offline Eccentric

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Re: McCULLOCH KART RACING 1962
« Reply #15 on: December 05, 2014, 02:08:38 pm »
Brings back memories.
I have one of those Power Products AH-82 engines.
Think is all stock . The thing has been in the garage attic 
at my parents house for 40 years or better.
I have not even thought about it for years till I seen this post on carts.

Time to get it out and do something with it.

In my area there used to be a few kart tracks.  One was even about 3-4 miles from my house..............but shut down by the time I was 4-5 years old.  It's been the location of a large 'flea market' ever since.  I can remember going to the flea market and seeing neglected karts in the weeds on the other side of a fence.  They were 'cleaned out' (probably scrapped) shortly after that.  I also remember a kart shop (ran out of a guy's garage).  He shut down around 1982 or so.  He had racks of McCulloch kart engines...

'Vintage' karts and parts pop up on my local CL from time to time.  Always more than I want to spend however.  I'm also a bit too heavy to be competitive now. 8)
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

 

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