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AMX 401 Take 6 |
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Page 123 23> |
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Rebel Machine 
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Joined: Jul/03/2007 Location: Western Il Status: Offline Points: 5121 |
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 Topic: AMX 401 Take 6Posted: Dec/21/2014 at 5:16pm |
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You had to know it was coming
 Got the 401 back from the machine shop yesterday. #1-#4 main bearing clearance are 0.0015" - 0.0020" and #5 is 0.0025". Rods are 0.0023". The hope is the mains will now hold back enough oil to properly feed the cam bearings. The Comp cam has been replaced by one from Bullet with the same grind. Modified small block Mopar windage tray installed with Ford 351W ARP studs. -Steve-   |
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gremlinsteve
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Joined: Dec/16/2008 Location: houston Status: Offline Points: 884 |
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Posted: Dec/21/2014 at 5:20pm |
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Let's try not to let this one get outa control.
I bet is was in the numbers and this one should run good. My fingers are crossed for u |
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pit crew
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Joined: Jul/08/2007 Location: delete Status: Offline Points: 5341 |
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Posted: Dec/21/2014 at 5:47pm |
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Have my fingers crossed for you man. I should have my 401 block back from the machine shop after the first of the year. Not to be negative in any way but I hope I don't run in to any of your issues. Best of luck to you Steve and I am sending positive vibes your way.
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 73 Hornet - 401EFI - THM400 - Twin Grip 20 |
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xfactor
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Joined: Sep/09/2012 Location: Port McNeill BC Status: Offline Points: 478 |
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Posted: Dec/21/2014 at 6:09pm |
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If nothing else, no one can call you a Quitter. Good luck with the build
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Ray Harper 69 AMX 401
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Rebel Machine
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Posted: Dec/21/2014 at 6:48pm |
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Thanks for the positive waves guys!
Forgot to mention the bearings have been coated. Engine builder says they'll hold oil better as well as protect against wear. The next move is to install the timing cover. Then I need to figure out what mods I want to make to the Canton oil pan. The baffle in it is basically absent compared to the factory pan. -Steve-   |
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sasyamx
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Joined: Jul/24/2007 Location: Kentucky Status: Offline Points: 525 |
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Posted: Dec/21/2014 at 10:45pm |
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did you ever fine out what was wrong , did the last build have bearing damage, good luck .
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jpnjim
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Posted: Dec/22/2014 at 6:03am |
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I'm glad you are sticking to this build! Are you using the same block from the last build? crank? rods? Just wondering, and GOOD LUCK! With everything you've been through I hope this becomes the most boring, uneventful build thread on the whole site. |
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71 P-code 4spd Javelin/AMX
some Jeeps and some Fords |
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Rebel Machine
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Posted: Dec/22/2014 at 6:39am |
My belief is the main bearing clearances were excessive. TSM says 0.001" - 0.002" and they measured nearly twice that. They're now in spec. The cam bearings were worn again. The thinking is the mains weren't keeping enough pressure back to feed the cam bearings properly. -Steve- Edited by Rebel Machine - Dec/22/2014 at 6:42am |
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Rebel Machine
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Posted: Dec/22/2014 at 6:40am |
All parts except the cam are from the first build. The only change is the mains were turned 0.020" under and clearances are per the TSM. -Steve- |
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RAZER
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Joined: Jun/14/2014 Location: AZ Status: Offline Points: 147 |
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Posted: Dec/22/2014 at 10:57am |
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You mentioned using a different cam this time, what lifters did you end up with?
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sasyamx wrote: