Is this cylinder toast?

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breaze
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Is this cylinder toast?

Post by breaze »

Hi all, I am working on an 87 Elite SE50 engine. The piston was frozen in the cylinder - I got it out, and gave the cylinder an acid bath. At first examination, the inside looked great - a little honing and ready to go. But then I noticed some problem areas around the top. Now I am debating as to whether or not it is usable and would like to hear opinions:

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dabinonahonda
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Re: Is this cylinder toast?

Post by dabinonahonda »

i wouldn't think that would cause any problems maybe if i was a bit lower
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Wheelman-111
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Re: Is this cylinder toast?

Post by Wheelman-111 »

Greetings:

You mean the beveling of the cylinder edge, correct? The only problem I would expect is if the cylinder top isn't dead flat, might interfere with gasket seal. Lapping compound using the head would ensure tight gasket.
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martynkim
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Re: Is this cylinder toast?

Post by martynkim »

I'd roll the dice on that.
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Re: Is this cylinder toast?

Post by patthesoundguy »

I agree with wheelman on that :-). The rings don't go up that far so the lapping trick should totally fix it. Nice tip Wheelman :-)

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breaze
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Re: Is this cylinder toast?

Post by breaze »

Wheelman-111 wrote:You mean the beveling of the cylinder edge, correct?
That is correct. Thanks all - encouraging feedback and suggestions to improve my odds - just what I wanted to hear.

I'll pick up some lapping compound today and try it out - thx Wheelman.
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'83 Aero NH80
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'70 CT90
'72 CT90
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'74 CT90
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breaze
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Re: Is this cylinder toast?

Post by breaze »

Quick update:

Glad I listened - used the valve grinding compound and "rolled the dice".

Runs great - thx

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'87 Elite SE50
'70 CT90
'72 CT90
'73 CT90
'74 CT90
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Re: Is this cylinder toast?

Post by motormike »

Atlanta Dairies wants their crate back.... :hi:
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Re: Is this cylinder toast?

Post by LMH »

motormike wrote:Atlanta Dairies wants their crate back.... :hi:
Haha
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breaze
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Re: Is this cylinder toast?

Post by breaze »

motormike wrote:Atlanta Dairies wants their crate back.... :hi:
Wait a minute - are you suggesting that the crate is not Honda OEM...

I should charge for the advertising. :naughty:
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'70 CT90
'72 CT90
'73 CT90
'74 CT90
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Re: Is this cylinder toast?

Post by Mystic »

where did u come up with that front basket?
1986 Spree/ Eve af16 swapped 65cc Prodigy vari 8g 9:1 Ruima gears
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breaze
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Re: Is this cylinder toast?

Post by breaze »

Mystic wrote:where did u come up with that front basket?
It was on my NH125 Aero - fits NB50 Aeros and the Elite - looks like it will fit my 2001 Elite also - but not my 85 Aero 80.
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'83 Aero NH80
'87 Elite SE50
'70 CT90
'72 CT90
'73 CT90
'74 CT90
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Re: Is this cylinder toast?

Post by motormike »

This is my mental image when I communicate with breaze.
I'm just weird that way... :urban:
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Cartoon character Breezly Bruin

Hey breaze, you sold the Urban, didn't you ?
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breaze
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Re: Is this cylinder toast?

Post by breaze »

Uncanny resemblance - strange though, I consider myself quite the old cartoon trivia buff but don't remember ol Breezly. Might have to have my first avatar...

Didn't sell the Urban - funny, got very little interest - maybe priced too high. I love it though and it turned out great, just don't see getting it out that often - 30 - 35 just isn't enough around here.
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____________________________________
'83 Aero NH80
'87 Elite SE50
'70 CT90
'72 CT90
'73 CT90
'74 CT90
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