So I finished dropping the motor today. It went great!
Now the break down begins to get the heads off. I'll be detaching the tranny as well since it should be easier to break everything down via an engine stand. Also, I'll be taking the tranny to Dr. Evil's class at the end of the year.
The video posted by Ian and McMark's write up were very helpful. The dual carbs took a lot of extra work out of the equation.
Congrats!...way to go....
now to the fun stuff
Bag and tag everything! Ask me how I know.
Best of luck,
Konrad
Thanks!
I did drop by myself. Will do about the bag and tag.
I think it will be more work to get the heads off than the actual drop. Not looking forward to that.
Heads are easy, you can see all the nuts! I guarantee you will go to split the case and find that you've missed one stud someplace covered in grease, grime, or hidden in the webbing someplace!
I guess the question I have is do I need to take off the fan shroud/alt/fan to get the heads off. I know I need to take the headers off and I'm guessing take those off while its on the ground. Then all the tin once its up on the stand.
Do yourself a favor and take everything off but the pistons and cylinders and clean it all up. Then replace every gasket and seal you can get to once you have determined that the case doesn't need to be split. Clean and paint everything before putting it back in and it really will be far more enjoyable to work on when you get it all back together. NObody likes wrenching on a dirty engine.
To get the heads off, you need to remove the tins just behind the fan shroud (over the oil cooler, and on the opposite side). In order to remove those tins, you need to remove the fan shroud.
But those aren't steps that take much time. I run into this quite a bit, or used to anyway, be careful not to waste a bunch of time trying to save some time. If something looks like it's in the way, stop and take the time to remove it.
Get an engine stand. Even a harbor freight one, or a used one on craigslist. I've done this on the ground countless times, and it's always WAY harder. See the advice just above this.... Doing it on the ground is a way to waste a bunch of time trying to save some time.
To swap the heads you'll have to:
1. Remove the exhaust and intake.
2. Pull off all the tin and fan shroud.
3. Remove the valve covers (these make nice part-holders for the next steps).
4. Remove the pushrod tube retaining wires.
5. Remove the rocker assemblies (11mm socket).
6. Remove the pushrods. Stock pushrods are all the same length, don't worry about 'mixing them up'. If you don't have stock pushrods, organize or mark where they go.
7. Remove the pushrod tubes. They're a pain.
8. Remove the last pieces of engine tin below the cylinders.
9. Loosen all the head nuts before removing any of them. Then remove them.
10. Slide the head off. Sometimes cylinders will stick to the heads. Hopefully that's not the case for you.
Nothing will fall apart or come out of place or otherwise complicate reinstallation. The only caveat is that the cylinder to case joint MAY leak slightly because that joint has been disturbed. If you're meticulous, you can slide the cylinders away a bit, carefully clean and reapply sealant just before installing the heads. But if you're going to do this, let me know and I'll add more details about this process.
I use sealant (Curil T) since it remains pliable to cope with expansion and contraction. No 'gasket' is called for there. There are shims available for setting deck height, but only use those if you need to.
Congrats! Glad the video was helpful.
Listen to whatever McMark says.
FWIW, I used permatex aviation on the cylinder-to-case and it worked great. What's key is that everything is square. All these years later, most cases need to be decked...
If I ever go to the trouble of pulling the heads, I always pull the jugs, and replace the rings. Then clean every thing. I don't find it all that much work and not too expensive.
Where's the obligatory standing-in-the-engine-bay photo?
--DD
Dave,
I'll get one and post it up.
Just an update - got the headers off, tranny disconnected, and some of the tin off.
I found the original builder of this 2056 swapped heads left and right, at least that's the way it seems as the cht sensor was still plugged in on the 1,2 side. Can you guess which exhaust valve dropped? Number 2 of course which would be number 3 on the right side. Too much abuse over the years.
Happy thanksgiving!!!
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