1995 blazer engine

[534BC]

I see this coming up repeatedly (no mark or which of two marks) someone needs to put an engine on TDC and make a mark, take a pic, ect. I've not had a reason to find tdc on mine, but it can be estimated by feeling when the compression stops , back up a few degrees. I'll do it if I ever have a reason or get energetic.

A long screwdriver should work just fine to rotate shaft, but many times the dist can be dropped into the correct spot and then the engine can be rotated with slight pressure down on the dist to drop it into the oil pump driveshaft.

[timky1]

Thanks! I'll give that a shot...rotating the motor slightly sounds a lot easier than trying to turn the op driveshaft with a screw driver when you can't see the slot to line up to. As long as the distributor is engaged with the cam, the timing should keep.

[timky1]

Well, I hate to say it, but I'm kinda back where I started. After successfully getting the motor ~180 degrees out, I got it back to almost right using the method described. During that time, I was paying particular attention looking for a timing mark on the block, I didn't find it, and the timing mark on the balancer, there are two, conveniently 180 degrees from each other. The only thing that I did find on the block which could be a timing mark is the crankshaft position sensor bracket. I'll pay closer attention to that today, and if that is it, I'll post a picture. If anyone else has other hints...please pass them on! I want to get my father-in-laws Blazer out of my garage!!!

[534BC]

Exact way is to stick a coat hanger in spark plug hole and put piston on top. Make your own mark if you have to , it is within 5 degrees. If a mark does happen to line up you can see it easily and let all the rest of us know.

[JoeT182]

Originally Posted by wafrederick

You probally put the wrong year engine in.The hollander says 1995 is by itself.Hook up a scan tool,go engine data and look for camsensor retard.It should be 0 degrees(the spec) and you set the distribitor with a scan tool,not a timing light.

would this be the same for a 2000 s-10, im having a terrible timing problem everywhere i read says to turn the disributor to adjust the advance/retard but the hold down plate has no slide adjustment built in lol,