Toyota MR2 Message Board - View Single Post - 4A-GE MK1 Engine Time for Cams, Quick question

toyotaspeed90 · 09-04-2009, 05:14 PM

there is no valve adjustment..... however, the "adjustment" is replacing the shims..... and it HAS to be done any time you swap cams... even stock for stock.... otherwise you run a big risk of spitting a shim and saying good bye to your head & cam(s).

I would guess smaller than 272 and you'd be ok on the stock computer if you played with timing and got some adjustable gears.

09-04-2009, 05:14 PM	#4 (permalink)
toyotaspeed90 No Skills Join Date: Jun 2006 Location: Bellingham, WA Posts: 2,394 Thanks: 0 Thanked 148 Times in 143 Posts My Google Map iTrader Rating: (0/0% )	there is no valve adjustment..... however, the "adjustment" is replacing the shims..... and it HAS to be done any time you swap cams... even stock for stock.... otherwise you run a big risk of spitting a shim and saying good bye to your head & cam(s). I would guess smaller than 272 and you'd be ok on the stock computer if you played with timing and got some adjustable gears.