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Posted

so dave? when can we get bullet trains like they do in japan? Ggg.gif

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Posted

Yearly update.

Snapped a valve.

P1110715-Copy.jpg

P1110714-Copy.jpg

Bent the valve and cracked the valve guide.

P1110719-Copy.jpg

Finished rebuilding it the other day and now it has flat faced valves and stiffer springs. The exhaust valve seats were pitted which was giving low 180PSI readings, and after grinding the seats it is back up to 200-205PSI. 180PSI is still well within the Toyota Sepcs too. MWR claim the flat faced valves add about 0.3:1 to the compression ratio, which should be about 5PSI by my dodgy maths.

Posted

That's not gone well...Seen that before sadly. Replace all the guides as well?


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