08-13-2013 | #51 |
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,797
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Re: 402 Build Project Udate
Exactly what I was thinking......just a touch with a stick and done....not too much heat at all ......after you touch it...just hit it with some cold water to make sure the little heat you generate does not migrate to the seal. Then back it up with JB Weld.
Then dress the inside up with a file and emory cloth for any splatter. Last edited by Dynomite; 08-13-2013 at 10:37 AM. |
08-13-2013 | #52 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: 402 Build Project Udate
There is always 1 pain in the *** with these builds, but with 32 valves, 32 lifters, DOHCs, liners, complex oiling systems....something is going to be a PITA.
I had the same leak and also one "new" lifter that periodically bleeds down at idle and ticks........ But hey for a hack mechanic I thought I did a decent job!
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
08-13-2013 | #53 |
Join Date: Apr 2007
Location: Northern VA
Posts: 2,661
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Re: 402 Build Project Udate
Dom,
Reducing cyclic irregularity at lower engine speeds.
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Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake |
08-13-2013 | #54 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: 402 Build Project Udate
Same thing I was looking for, or was it because it was cheap .......now that I think about it...it was because it was cheaper
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
08-13-2013 | #55 |
Join Date: Mar 2004
Location: Found Member
Posts: 4,346
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Re: 402 Build Project Udate
Got my finger's crossed for you Phil
There is all way's "something" with these build's. An LT5 isn't like building your small block Chev. Patience is some thing I no longer posses.
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Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237 |
08-13-2013 | #56 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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Re: 402 Build Project Udate
Phil,
IOW, you're trying to control the idle surging or at low rpms? That's actually something controlled thru the calibration. Motors w larger cams will do that and changes need to be made to the cal.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
08-13-2013 | #57 | |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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Re: 402 Build Project Udate
Quote:
Knowing you, it was the latter.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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08-14-2013 | #58 |
Join Date: May 2007
Location: Addison IL
Posts: 250
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Re: 402 Build Project Udate
Phil,
If it is a pin hole, you could try to swage it shut by hitting it with a pointed punch. |
08-14-2013 | #59 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: 402 Build Project Udate
might try loctite 290, then one of the other alternatives to seal it
For Porosity Sealing 1. Clean area and apply localized heat to the area to approximately 121°C. 2. Allow to cool to approximately 85°C and apply the product.
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
08-14-2013 | #60 |
Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,170
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Re: 402 Build Project Udate
Phil,
Very nice job, sounds like you have the issues worked out. After following all the WAZOO guys exploits I wish we had a group like it here in the south. Good Luck on the finishing touches. (We did have Ted for a while) Steve
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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