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Re: Timing Off on Windstar, Where are Timing Marks?
No adjustment is necessary on the 3.8L pushrods because of the hydraulic lifters.
To check for a straight rod, roll it on a flat surface. A bent rod will wobble as it rolls, and roll at an uneven speed. I'd check the length as well, as they can wear. The rocker to rod clearance check is one way of doing that, but it requires that the lifter be "blead down" completely. As mentioned, check that the tube is clear. It can be cleaned with a carb. cleaner solvent.
Make sure you have all the rocker parts. I think there is the rocker, the saddle, a washer, plus the nut.
As mentioned, turn the crank with a wrench in the same direct it turns when running (I believe that's CW when looking straight into the front of the crankshaft, from the passenger side) to a point where the rod is retracted before tightening down the rocker. I've done it without turning the crank, but it's not recommended.
There is a torque requirement for the rocker bolts. It's not super critical (like a gasket), but if you have access to a wrench use it. A word about torque wrenches... they can be wrong, so use some common sense to make sure it's in the right ball park. I once used a torque wrench I borrowed from AutoZone, only to find that is was off by 2x. I like to think about how many pounds it should feel like I'm lifting for a given a torque. If I'm using an 12" (1 ft) bar (with my hand at the end), then 40 ft-lbs = 40 lbs force, which is equal to the weight of 5 gallons of water.
I believe a new push rod is a few dollars.
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