no compression

[johnmc]

Hi All
I have an issue with the engine I have just rebuilt . When I crank the engine over by hand I place my finger over the spark plug hole and I don't feel any compression . I have completely rebuilt it , e.g Had the crank cases hydra blasted , new big end bearing on the con rods , main bearing on the crank , honed the pots and fitted new piston rings , the head is fully recondition . Spent all yesterday in the heat thinking things were going well and no compression I have the timing marks all lined up , cam marks are level with the rocker cover gasket . Any help would be great .
Regards
John
Sydney Australia

[uk gs nut]

I will give you the usual. What bike ? have you checked valve clearance.

[tom203]

Yes, do vslves appear to be closing/ opening? Did you take off camshaft sprockets? So timing appears like this pic at TDC on crank....

[johnmc]

Thanks for the reply's .I had a friend at work who pointed out some details and I now have compression on all 4 cylinders .
thanks once again
john
Sydney Australia

[steve murdoch]

Glad you got it sorted, John.
Could you share the details for others that may be in a similar situation.

[johnmc]

Will do steve , basically the crank was out by 2 or 3 teeth which put every thing else out ( should have worn my glasses ) . will be posting some pictures of my engine rebuild in the next day or so .
John
Sydney Australia

[turbojonn]

"In the heat", I'm envious of you Australians with your nice weather. Glad you got it sorted.

[60ratrod]

"In the heat", I'm envious of you Australians with your nice weather. Glad you got it sorted.

Oh shush turbo! You know you love our liquid sunshine! Ahahahaha. Come to think of it, the skagit is the highest i've seen it in the 7 years i've lived in mt vernon

[zuzu]

60Rod, You all getting as soaked as us. Its been raining constantly down here.... in Vancouver Wa.