beaver34
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| posted on 12/4/10 at 06:15 PM |
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valve grinding
is there an easier way or better tool than a stupid stick with crap rubber thing on end!
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clairetoo
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| posted on 12/4/10 at 06:18 PM |
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In a word.................no 
Its cuz I is blond , innit
Claire xx
Will weld for food......
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beaver34
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| posted on 12/4/10 at 06:22 PM |
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quote:
Originally posted by clairetoo
In a word.................no
boo!
i hate this job swore i would never do it again last time, things you do for more power 
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Stuart_B
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| posted on 12/4/10 at 06:24 PM |
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as said these is not much out there apart from the stick.
it just takes time if you are lucky are are doing a 8v and not any more.fun with the duratec rebuild.
stuart
black mk indy, 1.6pinto on cbr600 bike carb's.
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A1
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| posted on 12/4/10 at 06:26 PM |
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i found that if you lift it off the seat before changing direction it stops it coming off. also making sure its in a straight line with the valve
helps too. obvious i know, but it makes a really effing annoying job bareable
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will121
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| posted on 12/4/10 at 06:28 PM |
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just done 16 valves with a stick, i did considder one of these eezilap
tools to do in a drill but not sure what they are like.
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beaver34
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| posted on 12/4/10 at 06:32 PM |
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quote:
Originally posted by Stuart_B
as said these is not much out there apart from the stick.
it just takes time if you are lucky are are doing a 8v and not any more.fun with the duratec rebuild.
stuart
nah 16v zetec se 
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MakeEverything
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| posted on 12/4/10 at 06:39 PM |
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imagine a 24V V6!
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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beaver34
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| posted on 12/4/10 at 06:40 PM |
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quote:
Originally posted by MakeEverything
imagine a 24V V6!
thats why i went for a girls engine 
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britishtrident
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| posted on 12/4/10 at 06:53 PM |
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SPQR used to make Oscillating Valve Lapper tool for the end of a slow speed electric drill --- I still have mine it works great.
These days Gunson make the Eezilap Gunson model number G4095. Only difference I can see it is made of black plastic instead of oranged
see http://www.toolsheduk.com/Q/1148/2/28/Eezilap-Valve-Lapper.html
 
Rescued attachment g4095.jpg
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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adithorp
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| posted on 12/4/10 at 07:28 PM |
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Two tips for grinding...
1, Get a tune in your head and grind to that tune.
2, Adding a drop of paraffin to the paste makes it a lot easier on the hands... and improves the grind.
adrian
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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richard
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| posted on 12/4/10 at 07:52 PM |
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Am i the only one who as attached a electric drill to the top end of a valve and on slow speed pulled it towards me rather than used the stick method.
Ive done this on 2.8 3 litre and pinto engines so not sure if works on all engines.
Rich
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pewe
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| posted on 12/4/10 at 07:58 PM |
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Put a thinish coil spring under the valve head up into the port - stands the valve off the face until you put pressure onto the grinding tool.
As above ^^ a drop of paraffin helps you hear the grinding paste doing its job.
PIA job but worth it when you see that nice dull grey ring.
Cheers, Pewe 
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Daddylonglegs
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| posted on 12/4/10 at 08:11 PM |
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quote:
Originally posted by richard
Am i the only one who as attached a electric drill to the top end of a valve and on slow speed pulled it towards me rather than used the stick method?
Nope! I've done that several times too Rich
As long as you're careful and don't try to rush, keep the drill on a low speed and don't apply too much pressure it works a treat 
It looks like the Midget is winning at the moment......
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clairetoo
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| posted on 12/4/10 at 09:13 PM |
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quote:
Originally posted by beaver34
quote:
Originally posted by MakeEverything
imagine a 24V V6!
thats why i went for a girls engine
That'd be a 24 valve v6 then
Its cuz I is blond , innit
Claire xx
Will weld for food......
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beaver34
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| posted on 12/4/10 at 09:22 PM |
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quote:
Originally posted by clairetoo
quote:
Originally posted by beaver34
quote:
Originally posted by MakeEverything
imagine a 24V V6!
thats why i went for a girls engine
That'd be a 24 valve v6 then
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rusty nuts
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| posted on 13/4/10 at 05:58 PM |
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Tried to teach an apprentice how to lap valves in a couple of years ago, he soon lost interest. Once you have mastered the technique it's easy.
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Ivan
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| posted on 14/4/10 at 06:13 AM |
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Used to have a grinder that was like a hand drill with suction cup on end some sort of mechanism that swapped direction every few revs - don't
know what happened to it but I am sure a hand drill would work just as well, just reverse the direction every ten seconds or so.
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iti_uk
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| posted on 14/4/10 at 02:12 PM |
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quote:
Originally posted by clairetoo
quote:
Originally posted by beaver34
quote:
Originally posted by MakeEverything
imagine a 24V V6!
thats why i went for a girls engine
That'd be a 24 valve v6 then
Ahem...
!!!
Just because it's in an MX5...
Chris
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britishtrident
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| posted on 14/4/10 at 05:52 PM |
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quote:
Originally posted by richard
Am i the only one who as attached a electric drill to the top end of a valve and on slow speed pulled it towards me rather than used the stick method.
Ive done this on 2.8 3 litre and pinto engines so not sure if works on all engines.
Rich
Really not the way to do it ---- seriously a great way end up with scored the valve seats all it needs is one oversize particle in the grinding
paste.
Valve should never be allowed to rotate more than about 180 degrees before reversing the direction of rotation. After between 10 and 15
cycles the valve should be lifted off its seat and turned through between 60 and 120 degrees to a new starting position and the lapping procedure
re-commenced.
Mechanical fitters have been lapping in valves since the first steam engines were built, best practice methods were established through experience.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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