| Re: [GMCnet] Blackstone Labs and ZDDP oils [message #109589 is a reply to message #109521] |
Thu, 23 December 2010 17:49   |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
Karma:
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Senior Member |
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| James Hupy wrote on Wed, 22 December 2010 22:53 |
Fred, one of the GMC Cascaders just rebuilt his 455 and it was using oil
like crazy. He was using a Rockwell aluminum intake manifold with throttle
body FI. What he found was his intake manifold didn't have a good seal to
the valley, and it was injesting oil from that source. He removed the intake
& resealed it & his oil burning stopped. Engine ran very well and the plugs
looked good. Had us scratching our heads for a while before he found it.
Jim Hupy
Salem, Or
78 GMC Royale 403
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someone else here had that same problem with the alum GMC intake.
Fred V
'77 Royale RB 455
P'cola, Fl
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