cylinder replating
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moltenmaniac
- Newbie
- Posts: 22
- Joined: Wed Aug 23, 2006 2:20 am
- Location: Palmerston North, New Zealand
cylinder replating
had the head off to fix up powervalves yesterday and noticed a hole in the cylinder lining, bout 1.5mm round and probly less than .5mm deep, so at least i caught it before it did major damage. has anybody replated cylinders? if so how much? and i was also wondering if i could get it bored so that it would take other pistons (kx ones are lots cheaper i think) anyone know if this has/can be done?
1998 CR125
1988 h***a Bros
1984 VT250
KR1 Electric (under construction)
1988 h***a Bros
1984 VT250
KR1 Electric (under construction)
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Professor
- Heavy Smoker
- Posts: 158
- Joined: Mon Nov 20, 2006 9:23 pm
- Location: Cornwall
bores
The hole in your bore plating may have been there from new. they some times get very small air bubbles in the plating, I can't see that it would cause any harm.
The nicasil plating normaly wears out at top of the cyclinder first unless its been seized. In uk it would probably cost about £120 +P&P per barrel if it didn't need welding for major damage.
Haven't heard much about boring out to other sizes but I wouldn't make much size increase as it weakens barrel and therefore reduced reliability.
The nicasil plating normaly wears out at top of the cyclinder first unless its been seized. In uk it would probably cost about £120 +P&P per barrel if it didn't need welding for major damage.
Haven't heard much about boring out to other sizes but I wouldn't make much size increase as it weakens barrel and therefore reduced reliability.
Hardcore you know the score