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fork sliders scored on I.D. bad news??
- MkII
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20 Jul 2011 00:37 - 20 Jul 2011 14:04 #463860
by MkII
1977A1 current project: 1075, Web cams, VM29's Cavanaugh massaged head, Z1 crank
1979A3A Parked in 1986 left in shed
Phx,Az
fork sliders scored on I.D. bad news?? was created by MkII
finally able to get the forks disassembled and after a good cleaning noticed scratching on the inside of the fork sliders (bottoms)
I'm installing new tubes and wonder if this scoring will cause premature wear as a result. the scratches are felt but nothing with any raised, sharp, edges to snag a shop rag for ex.
I'm hoping the film of fork oil when assembled will 'cushion' the new tubes and it won't be an issue. the old tubes had some good hard nicks and judging by the past clown that did prior servicing I wouldn't be suprised if some alum flakes dropped down and contaminated the oil and got caught up in the oil causing the scoring.
any thoughts appreciated.
I'm installing new tubes and wonder if this scoring will cause premature wear as a result. the scratches are felt but nothing with any raised, sharp, edges to snag a shop rag for ex.
I'm hoping the film of fork oil when assembled will 'cushion' the new tubes and it won't be an issue. the old tubes had some good hard nicks and judging by the past clown that did prior servicing I wouldn't be suprised if some alum flakes dropped down and contaminated the oil and got caught up in the oil causing the scoring.
any thoughts appreciated.
1977A1 current project: 1075, Web cams, VM29's Cavanaugh massaged head, Z1 crank
1979A3A Parked in 1986 left in shed
Phx,Az
Last edit: 20 Jul 2011 14:04 by MkII.
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- 650ed
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20 Jul 2011 09:17 - 20 Jul 2011 09:32 #463906
by 650ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Replied by 650ed on topic for sliders scored on I.D. bad news??
If I was going through the trouble and expense of installing new tubes I wouldn't take a chance on having them damaged by scored outer tubes if I could find replacements. Have you looked around for new outer tubes to see if they're available? Ed
See PM
See PM
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Last edit: 20 Jul 2011 09:32 by 650ed.
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- KZ_Rage
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- Kentucky Bourbon Barrel Ale
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20 Jul 2011 10:48 #463923
by KZ_Rage
1979 KZ1000E1 SOLD!
1984 KZ550F2 SOLD!
2006 ZG1000A6F (Totaled)
2001 ZRX1200R (Sold)
2001 Sprint 955i ST (daily rider)
Replied by KZ_Rage on topic for sliders scored on I.D. bad news??
Since it appears the outer tube body acts as a bearing surface just below the seal then no, I wouldn't take the chance either if it is scored in that location.
Just curious, what did the ID of the old inner tubes look like down where it travels on the damper rod assembly? Scored there too?
Just curious, what did the ID of the old inner tubes look like down where it travels on the damper rod assembly? Scored there too?
1979 KZ1000E1 SOLD!
1984 KZ550F2 SOLD!
2006 ZG1000A6F (Totaled)
2001 ZRX1200R (Sold)
2001 Sprint 955i ST (daily rider)
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- MkII
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20 Jul 2011 12:18 #463950
by MkII
1977A1 current project: 1075, Web cams, VM29's Cavanaugh massaged head, Z1 crank
1979A3A Parked in 1986 left in shed
Phx,Az
Replied by MkII on topic for sliders scored on I.D. bad news??
thanks fellas, I appreciate your thoughts. the I.D. on the fork tube in the piston area was free of any obvious scoring or scratching, just normal burnishing/polishing you would expect of closely lubricated parts.
1977A1 current project: 1075, Web cams, VM29's Cavanaugh massaged head, Z1 crank
1979A3A Parked in 1986 left in shed
Phx,Az
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- Mcdroid
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- Gone Kwackers
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20 Jul 2011 12:38 #463954
by Mcdroid
Michael
Victoria, Texas
1982 GPz750
1977 KZ1000A
1978 KZ1000A
1982 GPz1100
1975 Z2A
Replied by Mcdroid on topic for sliders scored on I.D. bad news??
You had another thread discussing disassembly of the front forks and I posted on that thread. You didn't (I believe) ever mention what the inner fork looked like on that thread....rephrased, what did you find? The reason I bring that up is that I have seen a fair amount of mix-and-matching on old KZ front ends and this may account for the extra wear that you mentioned...you may not have the original inner fork...
Michael
Victoria, Texas
1982 GPz750
1977 KZ1000A
1978 KZ1000A
1982 GPz1100
1975 Z2A
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- MkII
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20 Jul 2011 13:32 #463960
by MkII
1977A1 current project: 1075, Web cams, VM29's Cavanaugh massaged head, Z1 crank
1979A3A Parked in 1986 left in shed
Phx,Az
Replied by MkII on topic for sliders scored on I.D. bad news??
Mike, I agree. it's obvious that the fork has been worked on before by a hack by the looks of it. alot of damage to the top seal area no doubt produced alum flakes, ect, and I think it dropped down inside and just worked it's way around causing the scoring I'm seeing. I'm gonna source new sliders as I'm currently having the new tubes DLC coated and I don't want to mess those up. btw I enjoy reading your posts, you obviously know your stuff. Matt
1977A1 current project: 1075, Web cams, VM29's Cavanaugh massaged head, Z1 crank
1979A3A Parked in 1986 left in shed
Phx,Az
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