Shimmed valve clearances. Set during build?
Discussion
RizzoTheRat said:
I thought shims were case hardened so you shouldn't grind them?
The one I have made are silver steel and are through hardened, you can grind them as much as you wish as long as you don’t overheat them.The ‘OE’ shims are case hardened and this extends down around 0.5->0.75mm, plenty enough to allow significant grinding, especially if it is done on both sides equally.
Dave
A cheap and simple way..
Mount a piece of box section alongside a bench grinder, then select a piece of round bar of a given size at least 6mm larger than the shim.
Drill a clearance hole of the same size as the bar so that when the bar is presented through the hole is meets the side of the grindstone square on, adjust the angle to suit until the bar presents perfectly.
Turn a hole in the bar which is a snug fit to the shim, drill a small central hole and mount a small diameter magnet in the hole, secure with epoxy.
Snap the shim into the end of the bar.
Push the bar through to the side of the grindstone and present it gently while turning the bar, repeat until the shim is near the correct thickness.
Finish of on a flat stone or on a circular flat grinder.
Dave
Mount a piece of box section alongside a bench grinder, then select a piece of round bar of a given size at least 6mm larger than the shim.
Drill a clearance hole of the same size as the bar so that when the bar is presented through the hole is meets the side of the grindstone square on, adjust the angle to suit until the bar presents perfectly.
Turn a hole in the bar which is a snug fit to the shim, drill a small central hole and mount a small diameter magnet in the hole, secure with epoxy.
Snap the shim into the end of the bar.
Push the bar through to the side of the grindstone and present it gently while turning the bar, repeat until the shim is near the correct thickness.
Finish of on a flat stone or on a circular flat grinder.
Dave
Edited by DVandrews on Tuesday 1st June 20:32
RizzoTheRat said:
How many shims are you people getting through? I think I paid <£1.50 each a couple of years ago for individual ones in the exact sizes I wanted. Loads of people on e-bay buying big packs and selling them individually.
Not many knocking about (excuse the pun) for Peugeot 1.9D XUD9A (none in Greece)PH member Zener bailed me out by giving me a few
DVandrews said:
A cheap and simple way..
Mount a piece of box section alongside a bench grinder, then select a piece of round bar of a given size at least 6mm larger than the shim.
Drill a clearance hole of the same size as the bar so that when the bar is presented through the hole is meets the side of the grindstone square on, adjust the angle to suit until the bar presents perfectly.
Turn a hole in the bar which is a snug fit to the shim, drill a small central hole and mount a small diameter magnet in the hole, secure with epoxy.
Snap the shim into the end of the bar.
Push the bar through to the side of the grindstone and present it gently while turning the bar, repeat until the shim is near the correct thickness.
Finish of on a flat stone or on a circular flat grinder.
Dave
Thank you very much for sharing this great cheap and cheerful methodMount a piece of box section alongside a bench grinder, then select a piece of round bar of a given size at least 6mm larger than the shim.
Drill a clearance hole of the same size as the bar so that when the bar is presented through the hole is meets the side of the grindstone square on, adjust the angle to suit until the bar presents perfectly.
Turn a hole in the bar which is a snug fit to the shim, drill a small central hole and mount a small diameter magnet in the hole, secure with epoxy.
Snap the shim into the end of the bar.
Push the bar through to the side of the grindstone and present it gently while turning the bar, repeat until the shim is near the correct thickness.
Finish of on a flat stone or on a circular flat grinder.
Dave
Had to thin down a shim 3 years ago for a Peugeot 1.9D XUD9A, used fine sanding paper on a flat surface and still got it wrong, shim was a touch lop sided but had to be used....seems ok, didn't consider the possibility of it being case hardened
Evoluzione said:
Penelope Stopit said:
Off topic
Is there such a thing as a cheap shim grinder ?
What is cheap? My Jones & Shipman was about a grand which is cheap.Is there such a thing as a cheap shim grinder ?
One increment on the hand wheel will increase the cut by .001mm which is useful for grinding shims.
Penelope Stopit said:
RizzoTheRat said:
How many shims are you people getting through? I think I paid <£1.50 each a couple of years ago for individual ones in the exact sizes I wanted. Loads of people on e-bay buying big packs and selling them individually.
Not many knocking about (excuse the pun) for Peugeot 1.9D XUD9A (none in Greece)PH member Zener bailed me out by giving me a few
Sadly my XUD9 had to get scrapped at about 198k miles when the ZX it was attached to died
RizzoTheRat said:
Penelope Stopit said:
RizzoTheRat said:
How many shims are you people getting through? I think I paid <£1.50 each a couple of years ago for individual ones in the exact sizes I wanted. Loads of people on e-bay buying big packs and selling them individually.
Not many knocking about (excuse the pun) for Peugeot 1.9D XUD9A (none in Greece)PH member Zener bailed me out by giving me a few
Sadly my XUD9 had to get scrapped at about 198k miles when the ZX it was attached to died
Shame the car on the end of your XUD9 gave up the ghost, there was one in a Peugeot 306 that had done 1 million miles and was still going strong
Ok found the topic
13.42mm diameter available in 0.05mm thickness increments
Those 3 years went fast
amongst others, Yourself and DVandrews helped out, it's a small world
Funny enough we had the same conversation about the XUD9A
Penelope Stopit said:
RizzoTheRat said:
Is there a decent Peugeot/Citroen owners club around, you usually find a few techie members of owners clubs who'll know that kind of thing.
As an aside I'm impressed anyone managed to break an XUD9, mine was bullet proof and had 196k miles on the clock when the rest of the car gave up the ghost.
Thanks, I will take a look laterAs an aside I'm impressed anyone managed to break an XUD9, mine was bullet proof and had 196k miles on the clock when the rest of the car gave up the ghost.
Yes they are a great engine, I saw a post about one that was close on 1 million miles
My XUD has done 180K but has been badly neglected by me, I am now paying the price for having no time to open the bonnet
Edited by Penelope Stopit on Wednesday 2nd June 14:38
I seem to misremembered my mileage though. Loved that car (ZX TD Volcane), drove 100k miles in 3.5 years, running on veg oil for a fair while, and getting paid mileage, I think I worked it made me 9p profit per mile. Radius arm bearings went in the end and the local Citroen specialist reckoned the cheapest fix would be a complete subframe from another car, which seemed a bit OTT for the age and mileage.
RizzoTheRat said:
How many shims are you people getting through? I think I paid <£1.50 each a couple of years ago for individual ones in the exact sizes I wanted. Loads of people on e-bay buying big packs and selling them individually.
I guess I have used around 160 so far this year, they are 10mm biscuit shims, for the thinner ones I can use the 9.48mm bike shims up to a certain thickness (3.25mm), anything thicker requires shims to be made and it gets a lot more expensive. I used custom shims of my own design to convert hydraulic followers to solid, but there isn't too much call for those now. Dave
RizzoTheRat said:
I seem to misremembered my mileage though. Loved that car (ZX TD Volcane), drove 100k miles in 3.5 years, running on veg oil for a fair while, and getting paid mileage, I think I worked it made me 9p profit per mile.
Penelope Stopit said:
Off topic
Is there such a thing as a cheap shim grinder ?
Depending on the style of shim, I've seen a tool for around £700.Is there such a thing as a cheap shim grinder ?
It's more typical to grind the valve stem, which is what I had done because my valve seats needed re-cutting (so the valves were sitting higher, and less clearance from cam-valve bucket). My particular valves had 1.524mm friction welded tip on them, so plenty of room for grinding down.
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