4.0 SOHC head gaskets/timing chains

[SenorNoob]

That's interesting. The exhaust uses bolts on my OHV. I did have to get some different length for the Ranger manifolds vs the Aerostar ones.

 

[JJMaine]

How about the flex plate bolts? I've read that they are TTY but many here have just re-used them and use the old torque spec from the OHV that weren't TTY bolts of 52ft lbs with loctite (and no TTY sequence)? Those darn things are $15 a piece!

 

[JJMaine]

This has got to be a typo right? The manual says the block and heads need to be flat within .0004". I'm thinking they meant to write .004"? I hope, if not I'm screwed haha

 

[alwaysFlOoReD]

This has got to be a typo right? The manual says the block and heads need to be flat within .0004". I'm thinking they meant to write .004"? I hope, if not I'm screwed hahaView attachment 135988

Go with the metric measurement, and cross reference. My bet is on .004....
Turns out it is .0004"
*** EDIT ***
The measurement of .0004 is for the straight edge, not the block or heads!
You could put a straight edge up against a piece of glass to check the straightness with feeler gauges.

 

[85_Ranger4x4]

Go with the metric measurement, and cross reference. My bet is on .004....
Turns out it is .0004"
*** EDIT ***
The measurement of .0004 is for the straight edge, not the block or heads!
You could put a straight edge up against a piece of glass to check the straightness with feeler gauges.

Yeah, a "straightedge" for checking heads is kind of special.

Don't be using your wooden ruler from 3rd grade.