Hello everyone... been reading these threads here for years, but haven't ever posted. A friend donated their 1985 pickup (22r late model) to me, and I've decided to try to "fix" it. Do I know what's wrong? Not really! I'm not a mechanic, and I don't know what I'm doing... learning on the fly.
My friend's mechanic told me that the head gasket was blown and I should try some ceramic product to seal it without HG removal. I decided I wanted to learn how to fix a truck and have invested in some tools and parts.
Here is a google album of pictures from the head-dismantling:
- Muffler+cat fell off (welded joint rusted through and broke) while driving into mechanic's shop (bad omen)
in October 2011 --> mechanic diagnosed blown HG --> friend gave up on truck and gave it to me...
- Truck turned on and ran in November 2011, drove it about 500 feet.
- Left it sitting out in the cold with a tank full of gas all winter. Battery was too dead to start engine in early March 2012. Siphoned gas tank and began engine dis-assembly in nice weather.
- Coolant has spurted around under the hood and is pooled in odd places. Coolant appears to be in the oil. Oil in the head is tan-colored.
- Water pump appears to be recently replaced. Three of the WP bolts contained string (as in, cotton thread) through them and the gasket. See photo album.
- Flexy-hose connecting underside of air intake (...to I-don't-know-what) was disconnected.
- Right-hand plastic timing chain guide is broken, missing a chunk.
- Everything under the hood is coated in oil. I know this truck and it's been like this for at least four years. This truck has "disappeared" oil and coolant at a moderate rate for years.
- Numbered in order of extraction: head bolts 1, 3, 9, 10, 4 came out bathed in black oil. Others were dry/ashy, #8 was the hardest to get out. None were loose. Nothing broke!
- Spark plug terminals #2 and #4 had debris in them
. Ground electrodes: #1 is fouled with brownish granular stuff and is oily, #3 and #4 have ashy scale built up on them, #2 is cleanish. All gaps are clear and center electrodes intact, no damaged plugs.
- Piston #1 is oily and dirty, #2 is dark and dry, #3 is pretty clean, #4 is carboned up and dirty. I wasn't very careful taking the head off, oil and coolant dripped on the pistons, and again I left this truck sitting all winter.
- Exhaust ports #1 and #2 are very carboned up and oily. #3 and #4 are less carboned and ashy. Exhaust valves #1 and #4 are caked in scale, #2 and #3 less so. Same exact story on intake side.
- Cam shaft moves freely with finger pressure. Rocker assembly and valve springs look fine visually.
- I think I got the engine to top dead center on the #1 piston, but the crankshaft pully notch is about two inches ahead of the marking gauge at the bottom of the timing cover... what does this mean?
- I took the distributor drive gear out before setting TDC#1... whoops? Don't really know what this means yet.
- HG itself looks beat up but no obvious tears / chunks missing.
If I had to guess I'd say the HG leaked somewhere around #1 piston, leaking oil and coolant. I hope the head bolts being bathed in oil isn't some kind of sign that the block is cracked.
I bought the OEM HG + non-OEM gasket set and head bolts from 22RE-Performance, and the $146 "front end kit" from Engnbldr. Looking at how carboned up the valves are, I think I might just by the $348 "fully assembled" head from Engnbldr -- to resurface the head I have is ~$70, and new valves and fixings and tools and labor for valve replacement/grinding/lapping looks like $150+, soooo....
Block deck looks fine, hope pistons, rods, etc, are fine. Any other engine component (and who sells the part?) that I should replace now to prevent future oil / coolant / temperature related problems? Again, I'm a total noob, have no auto-repair experience at all. If you want to look through the photos I've posted, and comment here on what you see, please do! I can use all the advice you can throw at me.