3500 Swap Finally Underway, a few questions

[bszopi]

Also, for reference: http://60degreev6.com/forum/content....shrod-Location

And going by the following...



Looks like the tensioner would go on the upper left bolt.

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[jmgtp]

Thanks for the link and the pic. After reviewing the link I am questions what I did on cylinder #4. I don't want to take any chances so I'm going to pull the valve covers, loosen the rockers and check which pushrods are installed - only way to be certain. Kicking myself that I have to redo this but certainly better safe than sorry and it shouldn't take long.

The pic is an LX9 but my issue is that I am using a 3100 alternator bracket on my LX9. I'm assuming that the tensioner will use the same position though.

[bszopi]

I would think it would.

[jmgtp]

I removed my rocker covers and compared what I had done to what Ben has posted.
I don't agree with what Ben has posted for cylinder #4. Here is what he says:

"Pushrods are valve specific on all Gen 2 and newer pushrod motors. The following are when you are standing in front of the radiator, looking at the engine.

In a FWD configuration the order for the rear head from left to right is Exhaust, Intake, Exhaust, Intake, Intake, Exhaust. The front head from left to right is Exhaust, Intake, Exhaust, Intake, Intake, Exhaust."

I don't agree with the two I highlighted in red, they look to be the opposite of the above. This should be for cylinder #4 or the middle cylinder closest to the radiator in a fwd car. I believe the correct order should in fact be E,I,I,E,I,E. Am I correct?
Look at this pic and you can see why I think I am correct:
photo(2).JPG

[pocket-rocket]

Since the front and rear head are exactly the same, yes, you are correct (since one head turns 180 degrees from the other). As for pulling the valve cover and checking pushrods, it sure beats pulling heads and changing valves and at least the valve cover gasket is rubber and can be reused

[bszopi]

I'll get the article updated and punish Ben for being wrong.

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[pocket-rocket]

I'll get the article updated and punish Ben for being wrong.

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Make him stay home in the snow for a couple more weeks, lol.

[jmgtp]

I'll get the article updated and punish Ben for being wrong.

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haha, ok well I just wanted to be very sure I had done it correctly and when the article disagreed with my logic I had to question it.

I found a pic of a 3100 on google and saw where the tensioner mounted, which is different than the 3500. The 3500 mounts to the alternator bracket and the 3100 to the timing cover. Since the 3100 alternator bracket that I am using doesn't have the provisions to mount the tensioner I opted to use the timing cover location - the 3500 timing cover even has the dimple for the pin on the back of the tensioner that prevents the mounted part from rotating. I did have to swap pulleys though to one that was not ribbed since the timing cover location means the belts smooth side will ride on the tensioner pulley. This was no problem since the 3500 comes with a few idler pulleys that I am not using (the idlers is how it gets around not having a p/s pump pulley).

The below is my setup, you can also see the TCE external crank trigger mounted in front of a 3400 harmonic balancer. It's coming along. I got the car in position to pull the motor and took my "new" getrag out of its crate. Next steps are draining the fluids from the old engine, disconnecting wiring & plumbing and removing the hood.

I also forgot about my leaky p/s rack. It needs new seals and that is something I have never done. Remans are out of the questions since it seems that no matter what ratio you buy they give you a 3:1 rack for your grandma. I currently am using the close ratio rack from a TGP but as stated, its leaking bad. I'll be pulling the rack after the engine is out since it will be so easy to do then.

photo(4).JPG

[pocket-rocket]

took my "new" getrag out of its crate

You suck. Where did you find one and what did you pay?

[jmgtp]

Well maybe my last post was a bit misleading, the crated 284 is not new. It is new as in the one that is coming out is not going back in. I actually bought it off a forum member years ago in anticipation that one day I would need it! My current 284 is a die hard. It has been through more abuse than any trans should endure but it just won't break. 2nd gear synchro is a bit rough but not bad, if you didn't know cars you wouldn't notice it was not perfect. The 1st gear synchro however is pretty shot and I think it may have a bent shift fork (when in 3rd or 4th the shifter kicks back and forth between accel/decel) - so this 'new' trans is out of a 92 z34 I believe and supposedly shifts perfect.

Now, on to today's progress! An ice storm kept me home from work so I worked on the car for 3 hours and feel like I accomplished a lot. It started with removing the hood (had a helper). Next was the calipers, rotors, hubs and popped the axles out of the trans. Then I removed the intake manifold from the dohc, the wiring, plumbing, shift cables, exhaust - you name it I disconnected it. I unbolted the a/c compressor and swung it away from the bracket, towards the radiator. With only a few bolts to go I called it quits. Literally all that is left is the nuts/bolts that retain the two motor mounts to the subframe and the transmount to the subframe. That is it! So, hopefully tomorrow after work I will have the motor and trans out of the car without too much fuss.

If all you're interested in is LX9 swap stop reading here...

I got this weird sense of nostalgia for the dohc as I realized the last time I would hear it run was when I moved the car into position. I will miss it. I still stand by it, it was and is a great motor. I gave that motor hell and it didn't quit. It has a bit of blowby now and I think the seal behind the harmonic balancer is leaking. It didn't make financial sense to fix and the the vette has replaced it as the 'toy' car so the LX9 was my choice for good power, bulletproof reliability and hopefully some good gas mileage. The dohc may be going but at least the GTP will live on.

Anyway, here is a pic. This was right after I removed the hood and before anything else was taken apart. You can see the evac system I made for the crankcase, it uses evac tubes just before the tailpipes for a bit of vacuum draw but also has an LT1 air pump inline that acts as a booster to the system, it was able to pull about 4" vacuum in the crankcase at WOT. I reprogrammed the shift light in the ecm to come on at 4000 rpm and took that signal off the ecm to ground the relay for the pump. It worked pretty good to reduce the blow by, but it was a bandaid on a bigger problem. The system won't be used on the LX9 as the stock pcv system should work just fine.

photo(6).JPG

edit: I will need a clutch alignment tool for the 284. Is it available in stores? Otherwise anyone have one that I can buy cheap or borrow and return? I have a clutch that came with the spare 284 that supposedly has only a few thousands miles on it. I'll post up some pics of it in the next few days and hopefully you guys can give me a thumbs up/down based on its appearance. My existing clutch works perfect and doesn't slip but it has 60k miles. Maybe it would be better to reuse my existing one rather than take chances on the used one?