light scoring is fine and to be expected, if you can feel your nail catching on it, replace :)
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light scoring is fine and to be expected, if you can feel your nail catching on it, replace :)
My nail catches on a couple, but you can't just replace a couple of caps can you...
well you could, if only one or 2 is a problem, it'll be no different to a set being within factory tolerances but veeery slightly different... but if you're going to replace them you may as well do the lot.Quote:
Originally Posted by iainel
Which means buying a complete new head.
Is it really bad enough to warrant that? Does you fingernail properly catch in it, or can you just feel it as you run it over?Quote:
Originally Posted by iainel
Didn't say the scoring was bad enough to warrant buying a new head, I don't think it's too bad so will probably end up using this head and caps, but according to Haynes the caps are machined with the head and so cannot be swapped on their own - so if I was to replace them it would be a complete new head.
My old sump cracked in same place as Iains and it absolutely pissed oil outQuote:
Originally Posted by Benn
Sounds likely, they're probably made in a similar way to conrods, machined and then snapped a long weak point or finely cut etc etc I wouldn't worry about it too much unless it really is badly scored up.Quote:
Originally Posted by iainel
Oh really? I've seen 1 or 2 with cracks on them and they haven't gone all the way thru..
Changing the caps will be honing/boring a long where the cams runs. As the caps have to match the head..
Yeah, alloy being soft means the crack expands/contracts quite a lot.