New engine for my moggy

Side valve, 803, 948, 1098., 1275 and Vizard mods

New engine for my moggy

Postby greengrass » Sun Aug 18, 2013 8:51 pm

What do you think off this boys and what do you think it was out off its a didy gear stick and the engine number starts with 10cc
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Postby ruairidh » Sun Aug 18, 2013 8:53 pm

Midget or sprite?
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Postby greengrass » Sun Aug 18, 2013 9:06 pm

Would that gearbox be better in my moggy it is a ribbed one thats in now
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Postby Custard » Sun Aug 18, 2013 9:09 pm

Do you know what has it been used for?

Obviously set up as a stationery engine for powering something belt driven.

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Postby woodywoodchipper » Sun Aug 18, 2013 9:10 pm

1098 sprite/midget is the same box as mog, its the 1275 thats the better one,

but its a spare, :wink:

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Postby greengrass » Sun Aug 18, 2013 9:29 pm

It was used to power a lathe used in 4th gear.
Ill try and get that plug out if not ill put a spare head on also these other heads you can put on 1275 heads (one on ebay now) would it make a lot off difference would i notice  the difference
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Postby Davidward » Mon Aug 19, 2013 7:56 am

The engine is the best 1098cc engine to have it's the larger main bearing unit used in late sprites and midget which is stronger. I have one. the head should be a 12g295 which is prized and can fetch about £70. I'd stick with that head if you can.
you've got a good find there.
as Alan said the box is supposed to be the same as a 1275 Midget which has better ratios.
Good find!
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Postby Custard » Mon Aug 19, 2013 9:14 am

I thought Alan said only 1275 was better and that 1098 Midget/Sprite was same as a Minor?

Just thinking that if used on a machine, depending on use the box could have done more hours than it would have in a car. Then again if well looked after by an engineer could be in better condition.

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Postby MM » Mon Aug 19, 2013 10:23 am

10CC is definitely the holy grail of 1098cc engines, being the 2" main bearing type. :)

The gearbox may well have the needle roller bearings, assuming it is the Midget gearbox and not a Minor one - does it have the reversing light switch?
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Postby greengrass » Mon Aug 19, 2013 10:55 am

Ill check for a reversing swich tonight.

If it is the good head the spark plug has been snapped off and no means off putting a socket on so will have to be drilled out or somthing like that.
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Postby MM » Mon Aug 19, 2013 10:59 am

I'd get plenty of PlusGas or diesel on it to soak into the threads before attempting to remove it.

I suppose one way would be to drill a series of small holes to form a slot, so that a large flat-bladed screwdriver could be used to turn it.

Or, drill out the ceramic/copper core and use a large Easy-out.
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Postby chrisryder » Mon Aug 19, 2013 11:37 am

I'd take the head off, and try to drive it out with the anode. Plenty of plus-gas and heat too ;)
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Postby greengrass » Mon Aug 19, 2013 3:58 pm

Can not find no reversing switch on the gear box.
The number on the head is  12G202

Just checked on the old low compression head and its the same numbers so must be a standard head so ill just swop heads :D
                                           
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Postby MM » Mon Aug 19, 2013 10:03 pm

Do you have a photo showing the remote gearchange assembly? That is where the reversing light switch is:

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(This shows the position of the switch, just aft of the gear lever).

Some swine must have nicked the fabled 12G295 head, and stuck a normal Minor one on instead.
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Postby greengrass » Mon Aug 19, 2013 10:12 pm

My mate checked and said it should be there were it wasent  so nether mind ill get it running this week i hope and let you all know what it sounds like.
My idear is get it running then take it out off its frame check the bearings if all ok then get ready for a swop a bit later on :D
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