Hi all. My first post on this board, so first Ill introduce Myself. My name is Darryl Im from Bothell Washington. Im an old fart just past 50 and been playing with FEs and mopars My whole life. Guess I just like motors with flat pans and rail rockers.
Brent, We talked at the greenwood carshow. I was with My son Justyn. I have a 10.00 Mopar racecar a 51 Ford with a smallblock Ford. A chopped 49 Merc with a cad motor and a 66 LTD 4 dr hardtop with a factory 390 4 spd.
The car that ate the cam is My sons 50 Merc. It had a 428 4 sd.
Now We just put in a Kieth Craft 482 shortblock. We ordered the shortblock minus the cam. ( NO WAY IS K C in any way tied to the cam failure) My Son purchased the cam-lifters and springs from Crower. I have assembled many engines in the past, with only one cam failure. My fault, first time for a performance cam didnt know about breakin. Anyway back to the cam. I lubed the lobes as usual then the lifters with the supplied lube from crower. With the intake off I installed the pushrods and rockers and pre set the valvelash. Removed them. Then did the runout on the bellhousing and set it with off set dowels.
We then turned it over to TDC on # 1.
Then We removed all the lifters one by one and applied more break in lube on the bottoms of them. I also had some comp cams lube and added that to the
oil.
From there We finished assembly and pre oiled it (80 psi). When
oil came out between the adjuster nut and pushrods We stopped. Without rolling the motor over any more. Put it in the car the following day.
Started it, immediatly raising the RPMs to 23 to 2500. Set the timing to 38 total and kept water on the radiator so We never exceded 180 degrees for 25 minutes.
I used Delo 400 for breakin even added 1 quart of Hyper lube racing additive. The car has a 9 qt aluminum pan.
The valves did sound EXTRA noisy during break in but We set them cold and thought that was why. It was gettin late so We quit for the day. The next day I
Changed the
oil and filter then started it, brought it up to tempreset the valves hot 22 and 24 per spec.
ALL of them were 10 to 13 thou beyond spec.
I took the car for a spin keeping the RPMs below 4000 didnt get 2 blocks and the valves were thrashing again. Went straight home pulled the dizzy and #5 ex lifter and it was seriously ate up.
After removing the cam today only a couple lifters lived. Three were real bad on # 1 & 5 the bulk of the rest were fat or concave. WHAT DID I DO WRONG? Firs time I have used Delo could that be it? Anybody got any ideas. Sorry for the long post. Thanks Fellas --FEDER
Ate the Cam in the new 482 %$#^%$#^%$
Threaded Mode
