HOW TO: Rebuild a D16A6
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awesome write-up, man.
ive done this in a Deisel VW before, and it was a filthy mess. i plan on doing this to my CRX very soon, i just need to find a place to do the work.
thanks for putting it on here step-by step. i had my dad help me the first time. this time im on my own, and remembering every little step is important.
how does the car drive now?
ive done this in a Deisel VW before, and it was a filthy mess. i plan on doing this to my CRX very soon, i just need to find a place to do the work.
thanks for putting it on here step-by step. i had my dad help me the first time. this time im on my own, and remembering every little step is important.
how does the car drive now?
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Like it was stolen from the dealer yesterday.
Seriously though, it's nice to know everything mechanical is in good condition, now I have to find all the squeaks coming from the rear of the car... If you (or anyone) is around Albany, let me know, you're welcome to drive it, as long as you let me help rebuild the motor.
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Lapping the valves is slightly grinding the valve seat to make a better seal. What you do is put a little valve lapping compound (slightly abrasive goo, kind of like toothpaste) on the valve, and feed it through the guide. Then you rotate it so that it sands down the seat, there are a lot of different ways to hold/rotate it, but the D series heads have plenty of room to stick an electric drill on the end. So you rotate it with the drill or something, and it makes a nice shiny seat and valve.
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317 Posts
i read the write up, and it sounds like you left the crank/main caps in place and the motor in the car?
did you cover up the crank with anything to keep junk out of the rod journals? Just curious as I'm thinking about doing this to my newest project Si...
-H
did you cover up the crank with anything to keep junk out of the rod journals? Just curious as I'm thinking about doing this to my newest project Si...
-H
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Actually, no, I didn't. I used a lot of oil and washed it out with more oil and then carb cleaner afterward, and I wiped off all the journals by hand. If I were doing it again (and soon I will be), I would take the motor out, or at least take EVERYTHING off of it with it in the car. At the time I was working mostly out of the manual, I really didn't know much about cars, but I needed to do it. I've had a lot of criticism about that, and about honing the cylinders myself. I can tell you it was fine though, it never burned a drop of oil, until the wrist pin seized and the rod snapped, punching a hole in the block and sending all the oil onto the radiator/firewall...
I'm planning on rebuilding/building the bottom end of my mini-me when I get back from my summer job. I haven't decided yet if i want the hassle of removing the motor. I've done rings in Hondas in 2 or 3 hours, with the motor in-car, though it would be easier out of the car, it takes a lot longer, and when you're working alone it's just less of a hassle to leave it in. It's just more opportunity for a lot of other things to go wrong. I had the hoist break on me once with the A6 hanging from it! Also think of all the other things you have to deal with, tranny fluid, removing the axles, I personally like to take out the radiator when pulling the motor. That's just a lot of opportunity to break other parts.
I'm planning on rebuilding/building the bottom end of my mini-me when I get back from my summer job. I haven't decided yet if i want the hassle of removing the motor. I've done rings in Hondas in 2 or 3 hours, with the motor in-car, though it would be easier out of the car, it takes a lot longer, and when you're working alone it's just less of a hassle to leave it in. It's just more opportunity for a lot of other things to go wrong. I had the hoist break on me once with the A6 hanging from it! Also think of all the other things you have to deal with, tranny fluid, removing the axles, I personally like to take out the radiator when pulling the motor. That's just a lot of opportunity to break other parts.
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317 Posts
I think i'm going to try this, the head's already off the engine, all i need to do is take the oil pan off, and the rods/pistons out.
Last build i did was a complete teardown and machine shop and rebuild and it was the strongest A6 I had driven. I am going to cover the crank in towels and then do the same hone then carb+brake cleaner and assembly lube the heck out of everything and see how it goes.
-Henry
Last build i did was a complete teardown and machine shop and rebuild and it was the strongest A6 I had driven. I am going to cover the crank in towels and then do the same hone then carb+brake cleaner and assembly lube the heck out of everything and see how it goes.
-Henry
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711 Posts
Just curious, should this not be in the HOW TO section?
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551 Posts
did you plastigage any thing..........!!!!!!!!!!!
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Great write up 
..At first i wanted to swap the engine but this seems to be cheaper and more hands on than just swaping it outright., plus my engine still strong and i'm going to be doing this to learn.. I guess it's ok to leave the bottom end in the car and taking it apart . i won't be worring about the cherry picker .. thanx :bounce:
..At first i wanted to swap the engine but this seems to be cheaper and more hands on than just swaping it outright., plus my engine still strong and i'm going to be doing this to learn.. I guess it's ok to leave the bottom end in the car and taking it apart . i won't be worring about the cherry picker .. thanx :bounce:so i just wanna say thanks 4 the write up on rebuilding a d16a6, im replacing a head gasket n other stuff n it is really helping
quick question though, u said i should probably flush the coolant stuff 2 makesure theirs no gasket material in there, how do i do that?theres no radiator on right now since im stripping it down, and im going to drain the coolant from the block today
wanna get all the old junk outta there n thought the coolant flush would b a good ideas, except im not sure how to do it
quick question though, u said i should probably flush the coolant stuff 2 makesure theirs no gasket material in there, how do i do that?theres no radiator on right now since im stripping it down, and im going to drain the coolant from the block today
wanna get all the old junk outta there n thought the coolant flush would b a good ideas, except im not sure how to do it
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