Maico 326 revisited

[JC]

Paul,

I'd be very interested to know the width & depth of the inlet port if you have a 326 barrell there.

[paul]

not here  yet

[JC]

Looks to me like std 250 cylinder Paul. Is it 67mm bore?

[paul]

yep so then its not what i was told ,sorry  i carnt help cause that what i was led to belive when it was sent ,the mystery continues

[JC]

Paul,

It maybe the 'Stacker-modified 250'. It supposedly used a Magnum piston & had some machining done to the barrell/head.

Is the top of the ring 2-3mm down from the top edge of the piston? (Magnum pistons were)

Also an you measure the ht of the barrell from base-gasket surface to top of liner?

(I ask this cos it may have been machined so as to 'drop' the barrell & retard Ex/Tr timing. This should identify if anything 'trick' has been done to it)

Thanks

[paul]

from the base gasket to the top of the liner is 133 mm
the head has notches in the top were it was held in a lathe and the piston ring is at the top /l shaped ring

[paul]

[JC]

Hmm, thats std ht for the barrell. I'd say he just milled the head (by the look of the pics) to raise Comp Ratio. Piston appears to be regular 250 piston.

[JC]

P,

Can you check the deck ht of the piston pls - top of gudgeon to top of ring.
Also, does it have round hole or oblong hole in the back of the piston for the boost port?
Thanks