Engine number identification

[andfy7000]

Have just bought a Serveta SX 200 frame number fine but the engine number is strange can any one tell what the engine is, S602*004795 need to know if its a 200cc or 150 and if its Italian or indian perhaps even spanish

[Rich Oswald]

Definitely Indian, not sure about the CC

[Fast n Furious]

Are you certain that the frame is a Sevetta?

[Digger]

Are you certain that the frame is a Sevetta?

Definitely not a Sevetta.

[Rich Oswald]

How do you know that Digger when the op hasn't even revealed the frame No ?

Rich'

[Stevepshipley]

He was being ironic Rich, look at the spelling

[Rich Oswald]

He was being ironic Rich, look at the spelling

Sorry Steve, never noticed that, should have gone to Specsavers. I have seen it spelt both ways but believe one "T" is correct, with an "R" init of course. Soz Digger

Rich'

[Digger]

No worries Rich - Have a good one...

[andfy7000]

Thanks for the replys now I know its indian can any one tell me how to find out cc without removing cylinder head

[ToBoldlyGo]

You could remove the cylinder cowl and check the stud spacing perhaps?

[Steve J]

Without removing the head, you will only be able to tell whether it's a small block or large block engine casting. You could try measuring the separation between cylinder head studs, and comparing your measurements with a couple of spare 150 small block and 200 large block head gaskets. Dropping the exhaust and measure the width of the exhaust port may give a clue - you may even be able to measure the bore (approximately). Remove the inlet manifold and measure the separation between mounting holes - small block and large block cylinders are different, but it's not conclusive. (It's been known for 200 Lambro 3-wheeler barrels to be fitted to large block engine castings, but those have the same inlet manifold stud spacing as the smaller cylinders.) The small and large block castings are different around the transfer port areas, but not that easy to see when the engine's installed. I'd be inclined to remove the head and do a direct measurement - head gaskets are cheap enough.

Even if you measure the bore, and get a reading of 66mm, it could still be a small block engine with overbored cylinder.... or one fitted with a remachined 200 cylinder. Maybe posting a few photos would be a good idea.

For what it's worth, I've got an Indian 150 engine casing, the prefix is S401 on that - anyone got one with a S602 prefix?

[andfy7000]

Thanks for all the replys looks like the head has to come off, guess whats now lined up for the christmas break