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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections. |
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06-27-2011, 07:59 PM | #1 | |
RCC Contributor
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New water seals are cracked
I was assembling my engine got to the water seals and found two of them cracked at the seam.
I got them from Atkins. The other two are fine. Here is the other one I tried calling Atkins but they were closed. I really don't want to put assembly off till I/they replace them. Can they be repaired?
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1990 Vert/ S5-JDM 13BT (rebuilt but with issues I'm working out). Rtek N370 1.7, 550/800 injectors, FD fuel pump, RB REV TII exhaust, Tein springs and Illuminas |
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06-28-2011, 09:59 AM | #3 | |
RCC Contributor
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I talked to Atkins, Dan I believe. He offered to either have me return the bad seals and he'd replace them. Or told me how to make them work.
Silicone sealant on those areas once they are in place. It's the same advice a friend had given me. I had read about it in the past; some people buy the water jacket directly from the source, cut it and seal it themselves. What I'll be doing, per Dan's advice. Don't use any hylomar or crisco in the suspect area. The dry spot will be the crack, which will of course be in the intake area. Dab a spot of RTV.
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1990 Vert/ S5-JDM 13BT (rebuilt but with issues I'm working out). Rtek N370 1.7, 550/800 injectors, FD fuel pump, RB REV TII exhaust, Tein springs and Illuminas |
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06-28-2011, 02:00 PM | #4 | |
RCC Contributor
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I'm letting the RTV "cure" a little while I assemble other parts. I think they're good but opinions are appreciated
I put one on either side of the middle iron,that way they aren't facing each other.
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Quote:
1990 Vert/ S5-JDM 13BT (rebuilt but with issues I'm working out). Rtek N370 1.7, 550/800 injectors, FD fuel pump, RB REV TII exhaust, Tein springs and Illuminas |
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06-28-2011, 03:56 PM | #5 |
Lifetime Rotorhead
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IDK, the RTV repair may work just fine, but if it were me, I'd take the hit on my build schedule and have Atkins replace them as they said they would. Maybe if you ask nicely, they'll forward ship you the replacement parts without making you wait for them to receive the defectives back. Since you can document the damage via an emailed photo to them, they might be willing to accept that as proof enough of the defective part while you agree to ship those back ASAP. That way you can save some time on the shipping end.
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06-29-2011, 10:51 PM | #6 |
The quest for more torque
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It would make me nervous too. Can you reuse the old inner seals? There is nothing wrong with that if they are intact. I have personally used 20-year-old factory inner coolant seal over in another build and they held up just fine.
If they com out intact, they are probably not brittle.
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1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic) |
06-30-2011, 02:54 AM | #7 | |
RCC Contributor
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With getting nothing done on my days off I decided to be sure and send them back. My goal was to have my engine assembled and one of the subframes dropped. None of that happened and I start a new job next week. Now that I blew my goal into oblivion I'm content waiting.
They are on their way back to Atkins. Reusing the inners isn't an option..they fell apart on teardown.
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Quote:
1990 Vert/ S5-JDM 13BT (rebuilt but with issues I'm working out). Rtek N370 1.7, 550/800 injectors, FD fuel pump, RB REV TII exhaust, Tein springs and Illuminas |
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06-30-2011, 03:51 AM | #8 |
FC3S
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Lol at reusing seals this makes me laugh, why on earth would you risk a rebuilt engine reusing a seal. But maybe thats just because at work if we put an o ring in, pull the part back off straight away for some reason or another, we still have to replace it again. That and i just don't trust and old rubber part.
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06-30-2011, 05:20 AM | #9 | |
RCC Addict
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Typically, the white "walls" are facing in and out. Those walls will usually delaminate from the rest of the seal, making them basically useless. -Ted |
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06-30-2011, 07:35 AM | #10 |
Test Whore - Admin
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I've never had an inner fire seal come out in one piece. I'm usually scraping lots of carbon and seal material out of the grooves
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06-30-2011, 11:18 PM | #11 | ||
The quest for more torque
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1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic) |
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