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ForumsDiscussion Forum → The rebuilding thread
The rebuilding thread
2009-04-11, 6:07 AM #1
Is anyone else rebuilding an engine or anything?

I know lee is working on a car engine of sorts.

I had amazing tunnel vision the other night after school. I brought the engine for my Honda up into the living room and started the disassembly process. Most of the screws are stripped, so I set all my focus on the removal and disassembly of the head.

It took me like 30 minutes to disassemble the head without taking apart any of the side case.

We're talking the whole jug.

I also found out what siezed and why. The pin that connects the piston to the connecting rod seized. This is good, because my engine is small and low revving. It caused almost no real damage to my cylinder. It was burned as **** though, the whole thing is BLACK. The rings disintegrated while I was pulling the cylinder off.

What I found was that someone had rebuild this engine. Rather than sanding all the mating surfaces smooth for a flush fit, they shimmed it... with liquid neoprene gasket junk.. This is probably what was causing my oil leak. They also blocked the oil port to the head. And it looks like they instead opted to pour a little oil down into the head every once and again.

The rocker arms look new, the valves look new. So I'm thinking a top end rebuild was probably the last work that was done on this particular engine. I haven't been able to split my case because like all of my screws are stripped out. I need an array of drill bits.


If anyone ever needs to get a stripped screw out of something this is how I do it. I find a drill thats about .005-.025 smaller than the threads (just guess if you don't know. Think about the same size) You drill down through the center of the screw untill the cutting edge of the drill bit is just about to seperate the head of the screw from the threads. Jam a pin punch in there, pry hard. Screw head pops off. You can drill all the way down until the screw head comes off, but you don't want to do this. You want to preserve the hole and the threads. If you **** up the threads in the hole, you might be able to tap it. You might be ****ed. You're probably going to be ****ed. This is a bad kind of ****ed to be when it's holding together something like your crank case.

When you pop off all the screws you need, remove whatever they were holding down. Then you take some vise grips and spin the rest of the screw out.

It works better than it sounds, but it takes practice. It's essentially the same operation as drilling out a rivet. Which I'm also pretty good at doing because I've drilled out a lot of screws.


I'll post some pictures later of my engine in it's current state of disassembly and what I'm doing with it.
2009-04-11, 6:23 AM #2
I'm rebuilding a laptop. Had to take it almost all the way apart to resolder the damn AC jack.
2009-04-11, 6:59 AM #3
Uhg, I HATE that ****.

I was trying to make a little money on the side fixing laptops, but **** is just too frustrating to entertain the idea of doing more than I want to.
2009-04-11, 7:49 AM #4
Yeah, that's the worst.

I'm thinking about building doing some sort of project car, but haven't decided what I want. Was thinking about an MR2 until I drove one. I'm 6' 4", it didn't work out.
gbk is 50 probably

MB IS FAT
2009-04-11, 9:08 AM #5
http://www.4grabit.com/Default.asp?bhcp=1

Warning, annoying video on site.

I have one of those, it's MUCH easier than self drilling the screws.
-=I'm the wang of this here site, and it's HUGE! So just imagine how big I am.=-
1337Yectiwan
The OSC Empire
10 of 14 -- 27 Lives On
2009-04-11, 9:31 AM #6
I don't know anything about vehicles, but my Grandpa owns an auto shop so I took apart, cleaned, and rebuilt carburetors and other various assemblies for fun when I was a kid. I never picked anything up though, cars are magical devices to me. I might end up buying my mother's van and installing a powered ramp and wheelchair locking mechanism, so I'll end up learning something when we wire it all into the rest of the van.
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2009-04-11, 11:39 AM #7
I'm rebuilding my karts motor
"Nulla tenaci invia est via"
2009-04-11, 11:43 AM #8
replacing head gasket/timing chain on a 22RE (toyota)

o.0
2009-04-11, 12:06 PM #9
Those are easy jobs.

I just replaced the head gasket on my truck. I think it took 20 minutes.
2009-04-11, 3:26 PM #10
I'm replacing all the gaskets and seals in the 1.8L engine I have for my Miata. Not doing a full rebuild because everything seems to be ok and it was SUPPOSEDLY a running engine. I guess we'll see. I just need to have the head and block looked at to make sure they're perfectly flat, then it will be time to replace the water pump and timing belt and get it back together.

To remove a ****ed up screw, just drill into it like you already do (though using a smaller drill bit than what you described) and use a bolt-out kit. It basically looks like a reverse threaded drill bit that will bite down into the screw and force it to screw out. A good bolt-out kit isn't exactly cheap (neither is it exactly expensive either) but it's worth twice it's weight in gold.
Little angel go away
Come again some other day
Devil has my ear today
I'll never hear a word you say
2009-04-11, 3:56 PM #11
Originally posted by Rob:
Those are easy jobs.

I just replaced the head gasket on my truck. I think it took 20 minutes.


Head gasket didn't take you 20 minutes. Maybe the valve cover gasket did. To change the head gasket you have to take off the entire head, much bigger endeavor.
Little angel go away
Come again some other day
Devil has my ear today
I'll never hear a word you say
2009-04-11, 4:26 PM #12
Originally posted by Rob:
Those are easy jobs.

I just replaced the head gasket on my truck. I think it took 20 minutes.


Took awhile to get to the head gasket. Then the head spent a day at the machine shop getting pressure tested/surfaced. Then waiting for parts delivery. Now its starting to go back together. Not the easiest job in the world.

o.0
2009-04-12, 8:08 AM #13
Originally posted by Crimson:
Head gasket didn't take you 20 minutes. Maybe the valve cover gasket did. To change the head gasket you have to take off the entire head, much bigger endeavor.


Ford Straight six is very straight forward.
2009-04-12, 8:24 PM #14
True, but even with the engine out of the car (like mine is) it still takes more than 20 minutes just to get the head OFF (if you're taking off the manifolds anyway), much less clean the mating surface and put everything back together and torqued properly. Are you sure you aren't talking about the valve cover gasket?
Little angel go away
Come again some other day
Devil has my ear today
I'll never hear a word you say
2009-04-12, 9:18 PM #15
Yes.

But I didn't clean anything either, and I'm not counting the time it took to put the manifold back on.

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