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| Valves and Rockers https://www.ausmini.com/forums/viewtopic.php?f=2&t=93991 |
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| Author: | GundyGuy [ Sat Oct 15, 2016 11:56 am ] |
| Post subject: | Valves and Rockers |
Well today was "Fit the new MED 1.5-1 Rockers day" Well like usual it didn't go to plan When i went to set the clearances i found 1 inlet valve was a little bit too short above the collet Result was the new rocker was fouling the spring retainer before it would touch the valve So when the valve went to open the rocker was pressing on the spring retainer first So its off with the new and back on with the old till i sort out another head to go on These sort of things make me want to scream 
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| Author: | drmini in aust [ Sat Oct 15, 2016 12:29 pm ] |
| Post subject: | Re: Valves and Rockers |
I put a set on a mk1 S head and had to pack them up 2mm to get adjustment |
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| Author: | FNQ [ Sat Oct 15, 2016 1:36 pm ] |
| Post subject: | Re: Valves and Rockers |
I think two sets of the 1.3 mm shims from minispares etc) did the trick for me in getting geometry better if you are looking for a bought solution ... but i had to grind the angles a little further back into the shim for better all round clearance .. |
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| Author: | drmini in aust [ Sat Oct 15, 2016 2:43 pm ] |
| Post subject: | Re: Valves and Rockers |
Both GR and Minis Plus have shims in 1.0 and 2.0mm. |
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| Author: | GundyGuy [ Sat Oct 15, 2016 3:41 pm ] |
| Post subject: | Re: Valves and Rockers |
Everything else was fine just that 1 inlet valve i measured it and it was 0.030" shorter than the other 3 Was thinking of a stem cap to bring up the height Dont want to shim up the pedestals as the rockers were near horizontal But now i will leave it until i get another head ready and make sure the stem heights are correct |
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| Author: | Phil 850 [ Sat Oct 15, 2016 8:11 pm ] |
| Post subject: | Re: Valves and Rockers |
So don't you just need one new inlet valve ? |
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| Author: | 69k1100 [ Sat Oct 15, 2016 8:49 pm ] |
| Post subject: | Re: Valves and Rockers |
Or 7 shorter valves. |
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| Author: | Convertible Mini [ Sun Oct 16, 2016 4:21 am ] |
| Post subject: | Re: Valves and Rockers |
You Can try using Datsun lash Caps on top of the Valve stem to give you more Valve length perhaps. |
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| Author: | GundyGuy [ Sun Oct 16, 2016 6:22 am ] |
| Post subject: | Re: Valves and Rockers |
Convertible Mini wrote: You Can try using Datsun lash Caps on top of the Valve stem to give you more Valve length perhaps. What model Datsun |
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| Author: | drmini in aust [ Sun Oct 16, 2016 7:09 am ] |
| Post subject: | Re: Valves and Rockers |
Darsun 1200 I think, they have 7mm valve stems. |
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