Timing Chain and Compression Issue
Senior Member
Joined: Jun 2011
Posts: 640
From: Northern Maine
to put an 03+ in you just need to swap the lower intake manifold+exhaust mainfolds and drill/tap the knock sensor. that's it. everything works the same. mine happened to be out of an 03 sonoma 4x4 so i did not have to change the oil pan, but 2wd and 4x4 are different oil pans.
Senior Member
Joined: Jun 2011
Posts: 640
From: Northern Maine
Yes, Crank, Cam, Dist. Button, all line up. Cyl 1 is at top dead. Had valve cover off to make sure on compression stroke. the rockers move up and down on all cyl. ( i dont know for sure if that valve is fully seating). Very little compression comes out of the plug holes except for CYL 5. My wife was driving so I really dont know if the truck was running different up to the point the chain broke. Also a little side note the oil pressure was bad--warm engine 30 psi at best round 2k RPM little less then 10 psi at idle if guage was correct. No problems up to that point with vehicle. Think I am gonna sell it cheap (00 blazer ZR2 )
according to manual #4 is supposed to be TDC when doing timing chain alignment....
http://www.autozone.com/autozone/rep...00c152800a7cff
Last edited by coolasice; Nov 10, 2012 at 12:46 PM.
Super Member
Joined: Apr 2012
Posts: 1,279
From: Port huron,Mi
well I hope 1 and 4 are @top dead center or I think Im going to have some issues getting my engine to start.Guell I`ll find out when I got to adjust the valves
Last edited by 1sttimejimmyowner; Nov 11, 2012 at 09:00 AM.
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drblaze
2nd Generation S-series (1995-2005) Tech
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Jun 22, 2011 01:58 PM
