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Old 08-13-2013   #51
Dynomite
 
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Default Re: 402 Build Project Udate

Quote:
Originally Posted by rkreigh View Post
be better if you could spot weld it to seal it up.
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.
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Old 08-13-2013   #52
LGAFF
 
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Default 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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Old 08-13-2013   #53
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Default Re: 402 Build Project Udate

Dom,
Reducing cyclic irregularity at lower engine speeds.
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Old 08-13-2013   #54
LGAFF
 
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Default Re: 402 Build Project Udate

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Originally Posted by Jagdpanzer View Post
Dom,
Reducing cyclic irregularity at lower engine speeds.
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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Old 08-13-2013   #55
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Default 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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Old 08-13-2013   #56
XfireZ51
 
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Default Re: 402 Build Project Udate

Quote:
Originally Posted by Jagdpanzer View Post
Dom,
Reducing cyclic irregularity at lower engine speeds.
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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Old 08-13-2013   #57
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Default Re: 402 Build Project Udate

Quote:
Originally Posted by LGAFF View Post
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
Lee,

Knowing you, it was the latter.
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Old 08-14-2013   #58
Marc Haibeck
 
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Default 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.
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Old 08-14-2013   #59
LGAFF
 
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Default 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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Old 08-14-2013   #60
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Default 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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