twin cam front cover replacment

[pocket-rocket]

That is absolutely insane... I would print that and frame it ^^

[3100 MPFI]

The one with the broken valve was a junkyard engine. I don't know any of it's history. One thing that I DO KNOW is that they had just done the timing belt before that happened (or right after). When I opened it up, the timing belt and pulleys were all new.

[lkurek]

YIKES! At least the bores look good......the head/piston took all the damage....

So sad to see

Do you know any history of this motor? Wonder how that happened.....

[3100 MPFI]

This is what I NEARLY installed in my car.

[pocket-rocket]

I hear you.... Nothing worse thatn getting onto a project and THEN finding out some part is bad. Especially AFTER you put the engine/trans in and it is a PITA to do, while it would have been cake on the engine stand. Sigh....

That sounds like the engine my friend bought for his Chevette back in high school. He bought it from a junk yard, went to put it in, got it all hooked up and started filling the fluids. As he poured in the coolant it started running out the side of the block. Turns out it wasn't a freeze plug, but a hole poked in the side of it. So he pulled it out and took it back for another. He got that one in, started filling it up, and it did the same thing. That time he got his money back. I guess the people that pulled the engines were prying it to bust the engine mounts or something stupid like that, poking a hole in the side of the block. You know for a fact they have oxy/acet. torches, why not melt the stupid thing. I know for a fact rubber mounts melt like butter with a torch. I found out helping a friend change shocks on his truck, and then later changing transmissions in my truck (bolts rusted to the sleeves in the bushings, so I got out my "heat wrench" and killed the bushings).

[lkurek]

I hear you.... Nothing worse thatn getting onto a project and THEN finding out some part is bad. Especially AFTER you put the engine/trans in and it is a PITA to do, while it would have been cake on the engine stand. Sigh....

Oh, on that cam drive pulley you tapped..... Do you know the diameter of the stock holes in it? I have an idea on a tool I want to build to be a puller. Yeah....tapping would be easy, but I never do things easy

Thanks!!!

[pocket-rocket]

Ouch man! When it rains it pours

[3100 MPFI]

I am going to give this one a fair chance. I will drive it for a while and see how I feel about it. If it starts giving me trouble, I will start looking into a pushrod to swap in there.

I got kinda discouraged with this one for a while. I bought this car 10/1/06, and I am just now getting it to where it can be driven. I still have a lot to do to it, but so far, nothing needs to be done to the ENGINE (I do want to replace the tensioner, but that is easy).

I am going to give this car a fair chance, and drive it for a while. It is at moms house right now, and I will be bringing it home tomorrow. I want to park it on the pavement overnight to make sure there is no leaks with it.

I don't like how everything in this car is made to be more complicated than it really needs to be, but all in all, the only real painful thing with this whole swap is that bad engine I bought. The engine that is in the car now is my SECOND engine for it. My first one was a 1994 Z34 that turned out to have a broken valve. It was that engine that put the bad taste in my mouth. I am just glad I found the broken valve BEFORE I installed the engine.

[pocket-rocket]

Some have no luck with the LQ1, and some people have multiples that don't give them problems :P I thought you were living my your quote in your sig and finally going to "find something simple and complicate it" and move from pushrods to DOHC. I've beat mine to hell (both of them) and they have been just fine to me. The 92 is finally getting ready to flip 150k miles in about 950 more or so. I think I've only put around 20k or so on it since you drove it, lol.

[3100 MPFI]

Nope. I have never liked the 3.4 DOHC, and I only decided to fix this one to give it a fair chance. It has NOT swayed my opinion either. If this one ever goes bad, or if I get a different car and it has a bad one, I will be swapping in a pushrod. Either a 3400, 3500, or 3900. If I EVER deal with a DOHC engine again, it will be the new 3.6. That seems like it might be a decent engine.

By the way, the car does run, but I have not road tested it yet.

[lkurek]

Bah! Stick with the 3.4 DOHC...... It is such a complex little beast that just the challenge of it makes it worthwhile

Heck, I had both a 3.4 DOHC and a 3400 in my garage....both complete and ready to go (so I thought...that's another story) to replace my dead 3100. The 3400 would have been almost a drop in, but why would I do something that easy.....nah, 3months of an hour here and there, 5 or more trips to the boneyard, leaks, cracks, buying parts off this list and ebay......the 3.4 DOHC is ready to go. I hope. Still isn't officially back on the street and reliably running

[IsaacHayes]

A 3900 would look great in there!!!

[3100 MPFI]

why? It didn't take that much force to get the pulley out. It is held in with just enough force to make it so you can't pry it off. It is not held in near as tight as something like the harmonic balancer.

Besides, I don't think I will EVER do this again. Next time anything goes wrong with this engine, it is going in the trash, and I am swapping in a pushrod engine.

[Schurkey]

Next time put some hardened washers under the bolt heads on that puller.

[1994KlrWhaleOlds]

I wish...I'm still trying to find somewhere with a garage. Then I need to sort it out and sell it...