Ducati Sporting Club UK > DesmoDue Race Series > DesmoDue - General Questions and Chat > Lack of acceleration possible Eng swap

[dunlop0_1]

0.05mm opener clearance

Always set the closers first then the openers.

[mat2hew]

Originally Posted by dunlop0_1

0.05mm opener clearance

Always set the closers first then the openers.

i believe the "correct" clearances are open to debate, I've been told that 0 is "correct" for a race engine and without the belts on you can feel when its touching but not rubbing.

however, my new philosophy is if it starts its good, learned that from the pie man.

[dunlop0_1]

Originally Posted by mat2hew

i believe the "correct" clearances are open to debate, I've been told that 0 is "correct" for a race engine and without the belts on you can feel when its touching but not rubbing.

however, my new philosophy is if it starts its good, learned that from the pie man.

0 on closers Matt. 0.10 - 0.12 on openers

[Lee M]

Disappointment springs to mind:-
I ordered an engine drop leak tester and awaited it's arrival. On Tuesday I travelled down to Epsom to pick up a 1999/2000 monster 600 engine. With the help of Kev, we think the engine is a 1995-7 as it is supposed to be from a 'T' reg monster with approx 8000 miles.

This morning (due to the lack of work) I thought I would compression test the newly acquired engine with a set of jump leads, (the engine was cold). Rear piston 100 psi and front piston 25 psi? Uhmm disappointment, but a winter project.

The engine drop tester appeared this afternoon so this evening I gave it a go (engine cold as it's stripped down). On unpacking the new toy and saw that the percentage loss gauge was broken, uhmm disappointment, not letting that stop me I plumbed it in and cranked it up to 100 psi, on both cylinders the valves held and both sets of rings leaked......but I don't know by how much %.

Phoned up ducatimondo (www.ducatimondo.co.uk or Chris Brody 01422 345823) and new rings are £95.43 per cylinder, uhmm disapointment.

Has anyone any ideas, like would hone/deglazing work. I am investigating an alternative source for rings.

[coppersaucepipe]

Just make up up what you lose on the straights in the corners and you'll be fine

[skidlids]

Originally Posted by Lee M

Disappointment springs to mind:-


The engine drop tester appeared this afternoon so this evening I gave it a go (engine cold as it's stripped down). On unpacking the new toy and saw that the percentage loss gauge was broken, uhmm disappointment,

Hope they replace it for you, they are a useful tool to have aound

[badgerpilot]

Phone a Ducati dealer with the engine number, if you ask nice they might find what it came out of. (Ducati Manchester did this with my frame number so I could get Badger's reg and V5)

If it's not what was advertised take it back and get your money back.

Buy mine with the recouped cash.
Easy!

[Lee M]

I am tempted to buy your engine; but on one level buying your winnng engine would create a sense of expectation and keeping this engine is easier than taking it back to Epsom.
I did try my friendly Ducati dealer (Seastar superbikes)they only work of frame numbers and not engine numbers.

Can people let me know their valve clearance on openers and closers please and state if its in inch or mm........ thanks in advance.