04-19-2011, 07:55 AM
|
 |
CC Member
|
|
|
Join Date: Jul 2005
Location: Carpentersville,IL & Maricopa,,
AZ
Cobra Make, Engine: ACE, 351W, 3550 Tremec, Raging(?) Red W/ White Stripe.
Posts: 2,082
|
|
Not Ranked
Quote:
Originally Posted by Bob Broberg SPF667 460BB
Flat tappet cams have a tentancy to round out/wear down lobes especially at break in. Ask Jeff about that. Ralphie, you made a smart move to hydraulic. No more valve lash adjusting and tappet noise. Did you put the NOS back on?
AZ Bob
|
Yes, DWRAT, I did switch to Mobil 1 about a thousand miles prior to the breakdown, but had been running Royal Purple for about 3 years before the last switch to Mobil 1.
Bob, the engine has just over 21000 miles on it and had not solid but Hydraulic flat tappets, so it was not a break-in problem.
Did not replace the NOS since the new RPM Airgap intake is slightly taller and did not have enough hood clearance to keep the 1/2 inch nitrous plate.
Ralph
__________________
SPEED WAS HIGH - WEATHER WAS NOT - TIRES WERE WET - X MARKS THE SPOT
Burma Shave 
|
Threaded Mode
