Why is the Gen 7 496 such a bad platform to build
10-22-2015, 05:35 PM
#71
Registered
Cool, cool.
I didn't believe you anyway....about not pulling them down further. Easy bet ! Lol.
Well, your nail is gonna match your motors soon....black. Youch !
I didn't believe you anyway....about not pulling them down further. Easy bet ! Lol.
Well, your nail is gonna match your motors soon....black. Youch !
10-23-2015, 09:56 AM
#72
Registered
I lied, I decided to pull a little more apart today. The cam and lifters are in excellent shape, cam bearings look good. This motor already has Raylar's rockers on it from the previous owner upgrading them when he had the heads off. The rockers feel fine and the little AFN retaining nuts all look good, no cracks. I pulled one head and the cylinder walls look great, which I expected since compression and leakdown were perfect and these motors don't use a drop of oil.
[ATTACH=CONFIG]546803[/ATTACH]
Of course, going to set the head back on the motor so I could cap it back up resulted in this:
[ATTACH=CONFIG]546804[/ATTACH]
Split the pinky nail right open in the middle, stings like a sonuva*****. Oh well, no pain no gain.
[ATTACH=CONFIG]546803[/ATTACH]
Of course, going to set the head back on the motor so I could cap it back up resulted in this:
[ATTACH=CONFIG]546804[/ATTACH]
Split the pinky nail right open in the middle, stings like a sonuva*****. Oh well, no pain no gain.
Just think Matt, if it would have been the Raylar aluminum heads it would just be a bruised finger.
10-23-2015, 09:59 AM
#73
Registered
Did you see Bob Llyod's mention of cracked Raylar heads?
See post #130. Wonder what the root cause was?
http://www.offshoreonly.com/forums/g...-heads-13.html
See post #130. Wonder what the root cause was?
http://www.offshoreonly.com/forums/g...-heads-13.html
10-23-2015, 10:08 AM
#74
Registered
Thread Starter
Did you see Bob Llyod's mention of cracked Raylar heads?
See post #130. Wonder what the root cause was?
http://www.offshoreonly.com/forums/g...-heads-13.html
See post #130. Wonder what the root cause was?
http://www.offshoreonly.com/forums/g...-heads-13.html
10-23-2015, 10:12 AM
#75
Registered
Bob L mentioned early heads.
10-23-2015, 10:41 AM
#76
Registered
I saw that. At first I got worked up, then two things occurred to me: one, those may have been early revision heads, I know they have been through a couple of updates throughout the years, and two, what other aluminum head option do I have for a 496? They had issues with rocker nuts cracking early on also, but I pulled mine off after 100 hours and they looked perfect. Going to run her and hope for the best. It's so easy to get worried about stuff you read on the internet. I am trying my best not to fall into that trap.
SB I missed the part on early heads. Thanks.
10-23-2015, 03:15 PM
#77
Gold Member
Gold Member
Food for thought.
My .02 is the ECU program. Dont do a ragged edge program. Be slightly conservative and do Raylars flash or Whipples stage 2 and you will stay dsafe.
My .02 is the ECU program. Dont do a ragged edge program. Be slightly conservative and do Raylars flash or Whipples stage 2 and you will stay dsafe.
10-23-2015, 03:31 PM
#78
Were doomed!
Charter Member
I lied, I decided to pull a little more apart today. The cam and lifters are in excellent shape, cam bearings look good. This motor already has Raylar's rockers on it from the previous owner upgrading them when he had the heads off. The rockers feel fine and the little AFN retaining nuts all look good, no cracks. I pulled one head and the cylinder walls look great, which I expected since compression and leakdown were perfect and these motors don't use a drop of oil.
[ATTACH=CONFIG]546803[/ATTACH]
Of course, going to set the head back on the motor so I could cap it back up resulted in this:
[ATTACH=CONFIG]546804[/ATTACH]
Split the pinky nail right open in the middle, stings like a sonuva*****. Oh well, no pain no gain.
[ATTACH=CONFIG]546803[/ATTACH]
Of course, going to set the head back on the motor so I could cap it back up resulted in this:
[ATTACH=CONFIG]546804[/ATTACH]
Split the pinky nail right open in the middle, stings like a sonuva*****. Oh well, no pain no gain.
strangely enough i always seem to cut myself each and every time i work on some motor and they all run like tops! 
LOL
__________________
-Wally
Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
-Wally
Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
10-23-2015, 05:15 PM
#79
Registered
You didn't fix it right unless you blead and you have a few bolts/nuts left over.
