Suffolk - New to me.

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wristpin
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Suffolk - New to me.

Saw this on fleabay last week and not only was it a model that I had never seen before but was only 8 miles away!

OK, it's a Suffolk with a two-stroke engine. The grass box says Colt but although it fits perfectly, may not be original.

Handlebars and carb top both present but removed for transport.

What is it?

 

hillsider
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An interesting looking

An interesting looking machine, I have not seen one like it before. Hopefully someone out there will be able to identify it.

gtc
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Suffolk Pony perhaps?
wristpin
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Yes, it is a Pony . I

Yes, it is a Pony . I suspected as such but hadn't got round to finding something to compare it with but thanks to you and Hillsider I now know for sure . Now discovered that I have illustrated parts lists for both the chassis and the engine.

Had a bit of a go at it today and found a dead condenser and not having a suitable one around me I fitted a Meco trigger unit to replace both the points and condenser , also a new HT lead but although it will give me a bit of a " belt" off the end of the lead it is not showing a visible spark either off the lead or across the plug . The coil tests out ok so I will revert to a condenser and points and see what happens. Hopefully I will be able to pick up a proper Pony exhaust muffler in due course.

 

 

wristpin
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I decided to revert to a

I decided to revert to a points ignition set up and a new condenser arrived this morning from George at Villiers Parts  and although a little oversize it has done the job, resulting in a running engine.

A strip and repaint to follow. 

gtc
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You don't muck about

You don't muck about smiley

wristpin
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Chassis all stripped out

Chassis all stripped out ready for cleaning, blasting and painting.  Fortunately my hoard of left overs from the business includes a bottom blade, cylinder bearing cones and seals. Looks like finding the correct muffler may, if at all, take some time so I will try to make something more "period" than the Briggs one that I used for the trial run.

The centre joint on the rear roller has been badly welded at some point but as the roller is the same as that used on the much more numerous Colts, rather that try to tidy it up and end up with a worse result, I will use it for now and wait for a better one to come along. 

wristpin
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The 50cc two-stroke engine

The 50cc two-stroke engine from the Pony. Nice little unit with ball bearing mains and proper oil seals and a  cast iron cylinder barrel sandwiched between an alloy crankcase and cylinder head.  Was this Suffolk's own design or was it licensed from some other manufacturer as was the classic cast iron four stroke that followed?

 

 

 

hortimech
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From what I was told when I

From what I was told when I started work all those years ago, the Pony engine was Suffolk's own design, but it wasn't a great success and wasn't reliable. Hence the purchase of the design rights to the B&S engine that became the 75-G14 and why the pony looks a lot like the Colt, because it is basically a Pony with a 4 stroke engine.

 

wristpin
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Yes, there's a lot of Pony in

Yes, there's a lot of Pony in the Colt. The right hand chassis side plate appears to be identical other than the position of the engine bearers but the left hand one is different . Thankfully a lot of the wearing mechanicals plus the cylinder , sole plate and rear roller are identical , making the restorer's life easier.

I wonder whether the engine originally just had a wrap round rope starter rather than what appears to be a bit of an after thought incorporating parts used on the Briggs designed cast iron unit that followed; or did the Briggs licence basically give them rights to a short engine  and SIF added their own starter and locally sourced magneto and carburettor? Then, if the starter ratchet mechanism pre dated the Briggs inspired four stroke why does it have two empty countersunk fixing holes that exactly match those on the later flywheels? That suggests the possibility of a retrofit.

wristpin
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Progress  

Progress

 

gtc
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This may be awarded some sort

This may be awarded some sort of speed record for a resto.

How did you obtain that Pony decal so quickly?

wristpin
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A good few hours of mucky

A good few hours of mucky graft!

Decal, by air mail from South Australia 5045!

wristpin
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Nearly there, cut grass this

Nearly there, cut grass this afternoon.