1st Post...Timing Mark Descrepncy
#1
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First post here and its with a problem. Aint that always the case?
Bought a Nov 92 Isuzu Pick-up the other day. Had a bad water pump. So when I R&R the WP I naturally decided to R&R the T-belt as well. Got a HAYNES MANUAL to "assist" in the operation. When I set the cam at what the book called the timing mark, a small cast teet on the back cover, the crank lined up between 1:00 and 2:00 against the what the book called the casting line, at 12:00 behind the crank cog. The book showed the cast teet to be also at around 12:00. On the actual truck this mark is around the 2:00 position. There is what appears to be a small notch cut into the back of the cover at the 12:00 position. Is this the mark I need to use instead of the teet? While I do need to check valve adjustment I'd rather not have to pull the cam cover today unless necessary. Any quick help would be appreciated. CH
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#2
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Had to get underway on this repair. Pulled the valve cover off and to my surprise the timing marks are set up to fire on #4 NOT #1. It HAS to be this way since there is only one dowel in the cam sprocket and it sets up on #4. Of course the HAYNES MANUAL says its supposed to set on #1. This isn't the first descrepency I've found in a HAYNES MANUAL but I do think it to be the worst. Or do I have somekind of oddball motor?
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WestCoastKevin
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03-22-2010 05:40 PM