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- Thread starter Robotstar5
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brightspark
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supposed to good and faster 
they have been out donkeys years
they have been out donkeys years
Windy Miller
Semi-Professional Potterer!
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I’ve had one for years and it’s always worked fine. Purists will probably moan about them but I’ve always been happy with the results.
Went to use it a few weeks ago on a tiny valve on a Honda GX140 but the sucker was slightly too big. Ended up sticking a whiteboard magnet on the valve and sticking the sucker on that - worked a treat!
Went to use it a few weeks ago on a tiny valve on a Honda GX140 but the sucker was slightly too big. Ended up sticking a whiteboard magnet on the valve and sticking the sucker on that - worked a treat!
Windy Miller
Semi-Professional Potterer!
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Yeah I’ve done that too! Not the best way to get it done, but needs must!
Kayos
Gone......
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16v vauxhall head so not exactly rare or special, and after 1 by hand I was bored
I do that regularly
brightspark
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i did using a piece of pvc braided petrol pipe using 2 jubily clips
one end clamped on the valve stem , tother on a bit of round bar in the chuck
Blobber
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doubleboost
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I must have ground in thousands of valves literally.
We did have a air operated device that did a decent job .
They were always finished by hand .
If the seats are pitted they need refacing .
After guide replacement they will need refacing .
I am finished with all that now .
But I still lap in valves on steam engines .
I was given a tub of diamond lapping paste 40 odd years ago I still use it .
We did have a air operated device that did a decent job .
They were always finished by hand .
If the seats are pitted they need refacing .
After guide replacement they will need refacing .
I am finished with all that now .
But I still lap in valves on steam engines .
I was given a tub of diamond lapping paste 40 odd years ago I still use it .
brightspark
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my bruv went in to Stevensons hardware tool store supplies in darlington and asked for some lapping paste
the woman serving said we dont keep it 
she said go down to the decorators supplied down the road 
jo1010
Member
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Those little oscillators are good - they do what a drill can't...oscillate! I've always used them - is the finished result better than using a drill and can I prove it? Probably not 
Another old chestnut is about NEVER using coarse grinding paste (it removes too much material and causes seat recession). I have to say I have used it on bad pitting with no real problem
Another old chestnut is about NEVER using coarse grinding paste (it removes too much material and causes seat recession). I have to say I have used it on bad pitting with no real problem
i did using a piece of pvc braided petrol pipe using 2 jubily clips
Thats how I lap valves too.
oldbikedavey
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Good bits of kit, they are. I tend to let the round body slip around between my fingers as the air drill is operated, which seems to work best.
Final lapping in is best done with the stick, though, as the feel is much more precise.
Final lapping in is best done with the stick, though, as the feel is much more precise.
addjunkie
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Safety valve lapping used to do my nut in, so many variants they need done by hand.
Rannsachair
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The one you have linked to gets dire reviews, for better quality they are dearer, looks like the Gunson G4095 Eezilap is far better at a price.
Cobbler
Codger bodger
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Years ago I went Ito a bookshop & asked for the BMC A Series tuning manual & was told to try the Music Centre!my bruv went in to Stevensons hardware tool store supplies in darlington and asked for some lapping paste
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I would have liked one of those, but couldn't find one.
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Bu66er, I did find a few with poor reviews so chose the Katsu as folks on here have bought that brand.
Mrs Robo put an order in for one last night as she has a Prime account, at least Amazon returns are easy.
