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Old 02-27-12, 02:47 PM
  #201  
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I gave mine a wistful pat on the mirror as I went by on my way to work.

Be patient, old friend... I'll have an engine for you someday soon.
Old 02-27-12, 03:22 PM
  #202  
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Originally Posted by orion84gsl
I don't have any pics of my bar... oddly enough, since I have pics of damn near everything else. What are you needing to see? I can tell you right now you'll have to chop up your RB filter top as well as move your charcoal canister if your still using it. Those were two things that got in the way of the passenger side firewall bar.
Just looking to make sure I'm mounting the strut mounts in the correct locations. I found a pic of Mike's car, and it shows his mounts (for the main cross bar) using the two mounting bolts farthest forward. I was thinking that maybe they used the bolts on the inner side, so wanted to check.

The problem with using the forward bolts is that there are two ridges on the top of the strut tower and I didn't want to crush them when installing the mount. If that really is where it goes, and mike didn't install it differently for some reason, then I want to find a way to protect the strut top from damage (even if only paint damage). So, if that's where it goes, I'll see about rigging some spacers or something...
Old 02-27-12, 03:23 PM
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DD- sorry for your loss man. Best of luck with the salvage...
Old 02-27-12, 05:29 PM
  #204  
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Originally Posted by DivinDriver
I was up til just before midnight last night, getting the keg put together. Went to sleep expecting to maybe be installing the engine and trans back in the chassis today.

Instead, I just spent the last several hours tearing it all apart again, trying to discover what was salvageable after disaster struck.

Details forthcoming in my build thread, but the short version seems to be that the rear inner oil rings didn't retract evenly in their bores (even though I had checked them by hand) over the spring ends.

when I rotated the engine by hand, it seemed stiffer than usual for a fresh assembly, but not horribly so. Then, about the third go-round, the oil rings both started chewing into the side housings. Jammed and stopped rotating.

My near-unobtanium Cali-specific EGR midplate looks to be toast, and possibly my rear plate too. Ironically, the expensive but replaceable oil rings look to still be just fine. That's tough stuff they're made of, to cut nitrided cast iron like cheese & come away without a scratch.

Needless to say, not the best of days.
This absolutely scares the hell out of me, being the novice engine builder that I am.

Why do bad things happen to good people??

I hate it for you DD..
Old 02-27-12, 05:40 PM
  #205  
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Thanks, gents... first order of business will be to figure out just what went wrong, so it doesn't happen again. It's stumping a number of learned folks just now.

In my dreams last night (no joke) I had this horrid mental image of myself turning the new engine backwards... I don't think I actually did it, but it's enough to have me doubting myself, you know?

Reverse loading on the ring springs could cause them to expand... That's why there are front and rear springs. Opposite directions of rotation.
Old 02-28-12, 06:02 AM
  #206  
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Ken, you'll need to add two washers onto each of the forward strut top bolts. You won't be able to crush the ridges, they're too thick. The bar just won't bolt down properly. I was actually bugging Sam about this very issue yesterday when I was at the shop. Every time I have to put the bar back on the washers are a pain to hold in place while trying to also hold the bolts for the camber plates in. It's all very awkward.
Old 02-28-12, 09:11 AM
  #207  
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Well today I continued work on my quest for a close ratio transmission for my SA.

The transmission case I'm using does not have the provision for the switch I use to disable my e-fan when I am in 4th gear so I had to drill a place for the switch;



and then cut the threads, Had a hard time finding a 14mm X 2 tap btw.



I also had to cut a relief in the shift fork to trip the switch.....please excuse the close up of my finger...



Now I'm back to waiting for the main shaft nut I had to order from the dealer......
Old 02-28-12, 09:25 AM
  #208  
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Wow, that's an ambitious mod right there Watson!
Old 02-28-12, 09:36 AM
  #209  
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The mod I'm doing would be right down your alley. The close ratio trans is ideal for autocrossing, you are much beter able to stay in the power band, and from what I understand makes the car much much more responsive to throttle imputs, we will see.....
Old 02-28-12, 10:00 AM
  #210  
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Originally Posted by DivinDriver
In my dreams last night (no joke) I had this horrid mental image of myself turning the new engine backwards... I don't think I actually did it, but it's enough to have me doubting myself, you know?

Reverse loading on the ring springs could cause them to expand... That's why there are front and rear springs. Opposite directions of rotation.
Actually, this is wrong, the more I think on it. Reverse loading of the springs would make them slip, not expand. So this doesn't look to be a possibility of cause, even if it did happen.
Old 02-28-12, 10:22 AM
  #211  
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Began integrating the southern rods chassis harness into the PEZ LS1 standalone. Going to be a long day
Old 02-28-12, 10:52 AM
  #212  
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Originally Posted by DivinDriver
Actually, this is wrong, the more I think on it. Reverse loading of the springs would make them slip, not expand. So this doesn't look to be a possibility of cause, even if it did happen.
The part that puzzles me is that it was not overly tight to start with. What could have moved or shifted to put that much pressure on the side housings??

Is the edge on the oil seals sharp/hard enough to shave the side housings without tremendous pressure?

I just cant figure out how the seals could have been in place to begin with and then move in such a way that they could exert sufficient pressure to shave the side housings. Im baffled.
Old 02-28-12, 03:27 PM
  #213  
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Originally Posted by rwatson5651
Is the edge on the oil seals sharp/hard enough to shave the side housings without tremendous pressure?
i learned building my first engine that those harmless looking round rings are actually the sharpest things in the universe. the front half of that engine got blood instead of vaseline.....

so yes, actually they are that sharp, although the sharp edge is the edge, and not the face, so when it sits flat on the housing it should be harmless?
Old 02-28-12, 04:03 PM
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Ouch.... bloody fingertips always hurt like hell.

although the sharp edge is the edge, and not the face, so when it sits flat on the housing it should be harmless?
Thats what I'm thinking,
Old 02-28-12, 07:05 PM
  #215  
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Originally Posted by DivinDriver
And a hot tip on how to solo the imfamous three-handed mid-housing operation, where you have to raise the e-shaft an inch or so while also carefully guiding the center housing in place, without scraping anything...
Haha, love it!

My fix to that problem was to use the tire jack with a small screwdriver stuck where the handle would go and slowly rotating it with my foot while lowering the iron. :p
Old 02-29-12, 06:38 AM
  #216  
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I removed the paint from my housings using Mar-Hyde aircraft coating removal. Only took 5 minutes before the paint started to "bubble." The simply used a brass brush to remover. Went amazingly smooth.

And ordered some porting templates from mazdatrix. First time porting, hope it goes well.
Old 02-29-12, 08:36 AM
  #217  
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DD-
There was a cali-spec SA (IIRC....original registration was in the car from Cali) in the boneyard in Detroit last summer. I'll see if I can't sneak away after work tomorrow/Friday night to see if it's still there. The 12a was still in it last summer. Shoot me a PM with what I should look for and I'll see if it's the proper center plate.

-Jim
Old 02-29-12, 11:36 AM
  #218  
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Spent some quality time pulling all of the underhood wiring harnesses, now I get to de-pin all the useless wires and prep the passenger side grommet for the Megasquirt harness. I only have about 75,000 more little things to do before it is back on the road. The early 4-port to TII adapter is finished though.


Isaac

Old 02-29-12, 05:31 PM
  #219  
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Got the rx7 fired up yesterday and it sounds great, minus the damn (lack of) idling issue.
Old 02-29-12, 07:43 PM
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I opened the hood and it began to pour rain immediately...I took it as a sign and went to go buy another cup of coffee and watch the today show
Old 02-29-12, 09:53 PM
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I haven't had a day off in months. I wish I could have a whole day to work on the 7.
Old 02-29-12, 10:12 PM
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Originally Posted by Starfox07
I haven't had a day off in months. I wish I could have a whole day to work on the 7.
+1...even on my day off I only got like 2 solid hours to myself. With an aging mom, a wife, 2 kids, and a job that thinks you live for them, its a wonder I get anything done at all...let alone do a good job on occasion.
Old 03-01-12, 11:03 AM
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Jacked it up, rotated my strut plates for less caster, got under it and tried to see how im going to mount my fans.
Old 03-01-12, 01:23 PM
  #224  
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Progress!

I spent my day off putting in work where it really matters...on the Rx7!!

New carpet from the storage bins back.

Special thanks to Glazedham42 for the inspiration to get this done!

It is AMAZING what you can accomplish in a day!

More to come very soon!

Smith
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Old 03-03-12, 11:54 AM
  #225  
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I said good morning to it, now that I'm back from my trip.

Got a possible line on a center housing. I'm gonna spend some time on problem analysis today, but I think I know what happened. Just need to prove it.


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