Anyone know any sources for lash caps for shim under bucket conversion?
#1
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Anyone know any sources for lash caps for shim under bucket conversion?
I was just wondering if anyone out there had any lash caps(for shim under bucket conversion) or knew of a source like a racing team etc. Mazdaspeed in the US is out of stock of several thicknesses and has no ETA on new ones from Japan. Eddie from adrenaline racng has called Japan as well and thus far they have not been helpful. Supertech will make them but it would take 6-8 weeks.
I had read that the units for the toyota 4AGE would work but have to be machined and am looking into this.
Thanks for any help you can give
I had read that the units for the toyota 4AGE would work but have to be machined and am looking into this.
Thanks for any help you can give
Last edited by kaisersoze; 06-08-2011 at 01:39 AM.
#4
Shim under bucket.
http://www.miataroadster.com/mazdasp.../i-407708.aspx
http://www.miataroadster.com/superte.../i-412161.aspx
You can also buy them through Mazda Motorsports. A few autocross results and you can open a racer account.
Bob
http://www.miataroadster.com/mazdasp.../i-407708.aspx
http://www.miataroadster.com/superte.../i-412161.aspx
You can also buy them through Mazda Motorsports. A few autocross results and you can open a racer account.
Bob
#5
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you can also measure your lifter nipples and find another application that fits.
neogenesis2004 took some oversize ones and sanded them down to the size he needed.
rumors out there suggest you can also grind the valve stems.
neogenesis2004 took some oversize ones and sanded them down to the size he needed.
rumors out there suggest you can also grind the valve stems.
#6
Supertech valves come with slightly extra long tips. They are designed to be ground down to set the lash. The machine shop had a grinder with a micrometer built in for precision grinding for this purpose.
Bob
#7
I'm trying to find out what and where to buy my sub's. Can I just get the largest size of lash caps and then just get my head builder to machine them down to size? As I'm in the uk and shipping time can sometimes be lengthy. And I'd like to take everything to my head specialist to do all in one go.
#8
I'm trying to find out what and where to buy my sub's. Can I just get the largest size of lash caps and then just get my head builder to machine them down to size? As I'm in the uk and shipping time can sometimes be lengthy. And I'd like to take everything to my head specialist to do all in one go.
If you place the lash caps on the valve stem (not on the SUB tip) you can use whatever source you want for 6mm caps. There are plenty in the UK.
The material and dimensions matter, not the badge of the cars it was meant to be used in.
I use Mazda Motorsport SUBs (bought through Miataroadster) with generic lash caps, but there are many other combinations that work.
#11
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Most newer motorcycle engines are this design. If you know the outer diameter and roughly the thickness range you are looking for, you could buy a Hotcams kit. Comes with all sorts of shims, like this:
Dirt Bike HOTCAMS Valve Shim Kit | MotoSport
I don't know for a fact they make them in the correct sizes but it's worth looking into.
Edit: Nevermind, these will not work.
Dirt Bike HOTCAMS Valve Shim Kit | MotoSport
I don't know for a fact they make them in the correct sizes but it's worth looking into.
Edit: Nevermind, these will not work.
Last edited by williams805; 02-06-2015 at 08:35 AM.
#13
Most newer motorcycle engines are this design. If you know the outer diameter and roughly the thickness range you are looking for, you could buy a Hotcams kit. Comes with all sorts of shims, like this:
Dirt Bike HOTCAMS Valve Shim Kit | MotoSport
I don't know for a fact they make them in the correct sizes but it's worth looking into.
Dirt Bike HOTCAMS Valve Shim Kit | MotoSport
I don't know for a fact they make them in the correct sizes but it's worth looking into.
Some of them look really thin and you need a decent "skirt" for them to stay in place. And they focus on the OD being right, makes me think it's supposed to fit in some bowl or similar.
Some stolen images to make things very clear.
Supertech Lash caps (5.5mm, but 6mm have the same design):
Usage
Some machining required but one of several sources in the UK http://www.burtonpower.com/shim-160-...c-e-fz215.html
Last edited by NiklasFalk; 02-06-2015 at 06:47 AM.
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