M103: What else should I replace/repair while it's disassembled?
 

Currently have the head, intake&exhaust manifolds, oilpan, and front timing cover removed. What else should I replace while it's apart? Should I clean, replace, or repair anything dealing with oilpump(pump, chain, guide, etc.)
I already have done or plan to do the following-
head rebuilt - $145
new fuel injectors with seals - $25 per
oil pan gasket
front crank seal
timing chain guide
timing chain tensioner guide

Thanks,
Bruce

did
 

you measure the cylinders for taper? and it may be a good idea to look at the oil pump. the clearances can be measured to see if it warrents a rebuild. on the other hand if it carried good pressure at idle it is prob ok. you can also look at chain wear.

tom w

Are there any published oil pump or oil pressure specs? At idle the oil pressure gauge was always just below the "3 o'clock" position after the engine reached operating temperature.

sounds about right.
 

factory specifies 1/2 bar i think. sounds like your is at about 1.5 bar.

tom w

It's always a good idea to replace all the rubber components in the intake while it's apart. There's the bottom of the air horn, the idle valve's hoses and the two breather hoses at the V/C. I know it adds up but if you're putting this much work into it, why not do it right? In the long run it's details like that which make the difference.

Powder coat your valve cover...
 

It makes a huge difference! You can also do a "ceramic" coat your exhaust/intake manifold depending on the condition of it...The valve cover is a must!