o7 WR450 sick after first valve service
Posted April 01, 2008 - 02:38 PM
Posted April 01, 2008 - 03:05 PM
Posted April 01, 2008 - 03:51 PM
Really easy to do yourself too...without messing up the timing:thumbsup:
Posted April 01, 2008 - 04:54 PM
Posted April 01, 2008 - 05:40 PM
but I have to agree that it is very possible to skip a tooth on the timing chain.
one thing that bugged me when I did mine was the alignment mark on the exhuast cam. there is one mark at 9 o clock and another at about 11 o clock. in contrast the intake cam has marks at 12 and 3. with my exhaust cam I ignored the mark at 11 and just alighed to the 9 o clock. it also helped me that I marked the chain and gear with a sharpe.
that 11 O clock mark on the exhuast cam makes me wonder...
what would happen if I had aligned that 11 o clock mark to 12, when I assembled it???? is it YZ timing or bust?
(this post is probably un readable. sorry)
Posted April 01, 2008 - 08:10 PM
Posted April 02, 2008 - 07:14 AM
I think the best way to make sure the cams line up is to take a digital picture of how the dots align with head at TDC before removing them then refer to the picture when re-installing. I remember my cams were not exactly at 3 o'clock and 9 o'clock but were still timed correctly.
Posted April 02, 2008 - 04:51 PM
Posted April 02, 2008 - 06:10 PM
Posted April 02, 2008 - 07:16 PM
Posted April 03, 2008 - 02:56 PM
Posted April 03, 2008 - 05:51 PM
Posted April 04, 2008 - 02:20 PM
Posted April 04, 2008 - 09:46 PM
Posted April 07, 2008 - 08:07 PM
Sorry, just burns me up when a shop screws up and the customer has to waste time to get it right.
Posted April 07, 2008 - 08:18 PM