I doubt it. It's not something I've heard of them doing.Originally Posted by h0dgep0dge
I think the clearance was too tight, and has caused this. After all, you measured the gap as being fine...but the valve wasn't actually closing.
Ta
I doubt it. It's not something I've heard of them doing.
I think the clearance was too tight, and has caused this. After all, you measured the gap as being fine...but the valve wasn't actually closing.
Moped rider
I took it into a bike shop (bikeworx in onekawa, if anyone's wondering) and the guy there said that the valves and oil seals look fine to him. I'm having him lap the valves to make sure, but he reckons that's not the issue.
Anorak
Well there is something up with the original seating or the oil seals or as me and about every else as said with zero tappet clearance at sometime because 2000 km engines ex valves and seats and ports shouldn't look like that.
Kinky is using a feather. Perverted is using the whole chicken
Moped rider
I'll make sure to keep the tappets in check, plus the rocker arms have these weird springs that keep the tappets pressed onto the valve stems. I'll remove those for good measure.
No8 Wire Extraordinaire
Cam timing out a tooth. Havent read most of the post, but that'd do it.
Don't you look at my accountant.
He's the only one I've got.
Anorak
I remember now, did you ever post a pic of them?
Kinky is using a feather. Perverted is using the whole chicken
Moped rider
I didn't, I haven't had the head cover off since the last time I posted, I'll go grab one now.
Anorak
Hard to tell but it looks like those springs are arranged to be pressing the rocker in contact with the valve is that the way they are pressing?
It seems perverse.
Kinky is using a feather. Perverted is using the whole chicken
Moped rider
That's exactly what's happening. It gave me some trouble when I tried to adjust the valve clearance, no matter how far I loosened off those tappets it was still tight against the valve. It was such a strange modification, no one would believe they were actually what I said they were, and I have no idea why someone stuck them in there.
Anorak
I didn't. But there they are.
Kinky is using a feather. Perverted is using the whole chicken
Low personal B.M.E.P.
Take those bloody springs off and toss them as far as you can...Totally unnecessary, someone's added them.
If springs are used there, the idea is to take load off the valve springs - not add to it.
IMO they could have been a contributing factor to the ex valve problems - all the carbon.
Ta
That's really weird man. Would have been a really queit motor though.
Forum whore
If those springs kept the rocker in contact with the valve stem tip, then there would have been clearance between the other end of the rocker and the cam (when on the back of the lobe). Just moving the clearance from one end of the rocker to the other.
Maybe someone thought they were making a desmo out of it
it's not a bad thing till you throw a KLR into the mix.
those cheap ass bitches can do anything with ductape.
(PostalDave on ADVrider)
Anorak
The Spaniards did built some desmo Ducati singles under licence with coil springs. They had a very poor reputation for reliability even compared to the std ones.
Someone brought one and took it to bits and it turned out they used the std non desmo springs but had them preloaded to half there free length. No wonder they trashed the cams.
When the guy removed them it actually allegedly bent his spring compressor in half.
Can't remember what they were called trans something
edit after google Mototrans.
Kinky is using a feather. Perverted is using the whole chicken
Forum whore
The springs are clearly just there just in an attempt to quieten the motor.
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