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21
2nd Generation Build Thread / Re: 1988 Turbo 'Vert Project
« Last post by toplessFC3Sman on September 06, 2017, 11:10:19 PM »
I ended up getting the front rotor bearing pressed out and replaced with a new one since it was looking so beat up. The stationary gear bearings were a little worn but I wasn't as concerned with them. I got new apex seals, corner inserts, and all the o-rings, crush washers etc required to rebuild the engine a while back, so after a long day the weekend after the 4th of July, the engine was reassembled. I didn't take many pictures of this process since I pretty much had my hands full trying to get it done in a day. Spinning the e-shaft by hand, it moved smoothly and gave distinctive compression pulses on all 3 faces of each rotor. The manifold, OMP & lines etc got assembled over the next few weeks, with one stripped hole in the OMP needing to be drilled out and get a threaded insert installed. I found some extra-wide crush washers that would bridge over the threaded insert, and so far it doesn't appear to be leaking.


Everything got a nice cleaning while it was disassembled too... I hope the cleanliness lasts a little while at least. I filled the ports in the intake manifold that used to be used to pass EGR to the intake and coolant to the turbo as well; I've eliminated the EGR system a while ago, and re-routed the coolant to take it out of the manifold so I wouldn't be unnecessarily heating the intake air. This was all filled with a high-temperature putty; i think it was sold for patching exhaust components, but seemed like itd work well for the manifold too. It was like a giant clay stick, but needed to be kneeded to really stick well.


Two weekends ago, I got a day to actually install the engine and hook up the oil & cooling systems.



One of the oil cooler brackets needed a bit of... reinforcement.


Everything seemed to go very smoothly, but the cooling system leaked from a number of places. A few years ago, I had tried to go through and replace a lot of the smaller hoses with bent steel tubing to clean things up and remove failure points, but at the turbo I couldn't find any 10mm compression fittings so I drilled out a few 3/8" tube fittings to fit. They held for a couple years, but didn't survive disassembly well.


This time I ended up buying some 10mm compression fittings and pieces to adapt them to the 3/8" tubing I had from mcmaster.com, and bent/assembled most of the smaller cooling system parts again this past weekend.





Basically, the coolant to the turbo comes out of the nipple on the top of the rear iron pointing upwards, travels under the manifold and out near the firewall, then turns to go through the pipe bolted to the BAC, then back down to the turbo on the passenger's side, and out of the turbo between the turbo and the engine down to the small nipple on the pump inlet.
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Upcoming Events / Re: Club Cruise - Labor Day 2017
« Last post by ITSWILL on September 04, 2017, 08:19:53 AM »
Everyone can bring their cars to my house. We can grill and have a bon fire and dick around with cars.
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Upcoming Events / Re: Club Cruise - Labor Day 2017
« Last post by ~Groll69~ on August 31, 2017, 04:22:14 PM »
Does anyone want to plan this?
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Parts for Sale/Wanted / 2017 RockAuto XOR Adventure Sweepstakes!
« Last post by RockAuto on August 28, 2017, 04:05:18 PM »
You are not allowed to view links. Register or Login is teaming up with PowerNation TV again to give away a one-of-a-kind Jeep built by Ian Johnson, straight from the Xtreme Off Road shop! You can win this 1968 Jeepster Commando loaded with performance upgrades. Go online and enter for your chance to win today! Check out the RockAuto Promotions page You are not allowed to view links. Register or Login to view all current rebates and promotions as well as the giveaway entry form!

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25
Upcoming Events / Re: Club Cruise - Labor Day 2017
« Last post by ~Groll69~ on August 28, 2017, 02:43:08 PM »
I like the cruise and picnic.  ItsWill Can you coordinated that?
26
2nd Generation Build Thread / Re: LS1 RX7 build
« Last post by toplessFC3Sman on August 28, 2017, 09:49:06 AM »
Ouch!  I know that the S5 turbo diffs had different lengths than the S4 (and a difference left vs right), but wasn't aware that there were differences with the S4 shafts
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2nd Generation Build Thread / Re: LS1 RX7 build
« Last post by murz on August 27, 2017, 11:48:34 PM »
That's crazy, you know i wonder if that replacement is stronger like that?
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2nd Generation Build Thread / Re: LS1 RX7 build
« Last post by ITSWILL on August 27, 2017, 09:59:22 PM »
Oops...

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On the left is the replacement, center is the good one from my diff, right is busted (notice the replacement has a different spline root without a filet)
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29
Upcoming Events / Re: Club Cruise - Labor Day 2017
« Last post by ITSWILL on August 25, 2017, 07:52:55 PM »
I was thinking a cruise and picnic.
30
2nd Generation Build Thread / Re: LS1 RX7 build
« Last post by toplessFC3Sman on August 25, 2017, 12:26:38 PM »
Yea, me too! it would make things a lot easier, although trying to implement an in-cyl pressure transducer on a rotary would be tough. You'd need 3 per rotor, and would have to stitch together the traces from each based on rotor position. I've thought about it a few times, but I'm not sure I want to turn a fun hobby into a serious experiment
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