Login    Forum    Search    FAQ

Board index » Racing Forum » Engine & Cylinder Head Tech




Post new topic Reply to topic  [ 6 posts ] 
Author Message
 Post subject: new engine for hornet
 Post Posted: Fri Nov 19, 2010 6:46 am 
Offline

Joined: Wed Sep 29, 2010 9:40 am
Posts: 26
Location: forest pk ga
welll i traded my 396 for a damaged 461 high comp nitrous engine
i took and started to tear down new mystery trade and i found copper gaskets and o ring under the heads
huge piston domes and damaged lifters and cam lobes
the prior owner did not set oil pump correctly and ran dry in break in
the lower end seems good
i think i should rebuild the engine and double check every thing
am i goin overboard?


Top 
 Profile  
 
 Post Posted: Fri Nov 19, 2010 12:13 pm 
Offline
Site Admin
User avatar

Joined: Tue Apr 18, 2006 6:38 am
Posts: 11804
Location: Coming At Ya!
alfonsothefons wrote:
the prior owner did not set oil pump correctly and ran dry in break in
the lower end seems good


These two statements contradict each other? If the oiling system isn't up to snuff, then bearings on the crank will be the first thing to suffer??

Since you don't seem to know a lot about this engine, I would suggest that you pull it all the way down and start from a "fresh" rebuild. You can pull a ring set off and check the end gaps to see if they are within "spec" and also you can see what all the bearings look like. If you find nothing wrong and the engine in fact doesn't show any wear in the cylinders (cross hatch still prevalent) then I'd put it back with the stuff that came out of it.

You said lifter and cam damage? What kind of cam and lifters are we talking about, ie, roller/flat tappet, etc. And what kind of damage are you referring to?

_________________
Big Boyz Toyz!

Image

Necessity is the plea for every infringement of human freedom. It is the argument of tyrants; it is the creed of slaves.

William Pitt, British Prime-Minister (1759-1806)


Top 
 Profile  
 
 Post Posted: Fri Nov 19, 2010 12:51 pm 
Offline

Joined: Wed Sep 29, 2010 9:40 am
Posts: 26
Location: forest pk ga
the guy before me took and replaced main bearings afterwards and never got around to doing top side
before the trade
took a call to verify this
solid flat tappet cam
lobe wear on lifter body can see actual tracking of lobe
i think he had wrong length pushrods 8.25 7/16 he took off a 502 he had just ruined
replaced the one that was in motor because they were thicker
and did not do math of change from original rods length
to make it work ,i think he just replaced and fired motor up and messed up O:)


Top 
 Profile  
 
 Post Posted: Fri Nov 19, 2010 9:03 pm 
Offline
Site Admin
User avatar

Joined: Tue Apr 18, 2006 6:38 am
Posts: 11804
Location: Coming At Ya!
Well if this guy was as big an idiot as you make him out to be, then I'd say you might ought to consider having a machine shop check this thing out so you will know exactly what you have.

_________________
Big Boyz Toyz!

Image

Necessity is the plea for every infringement of human freedom. It is the argument of tyrants; it is the creed of slaves.

William Pitt, British Prime-Minister (1759-1806)


Top 
 Profile  
 
 Post Posted: Fri Nov 19, 2010 10:44 pm 
Offline
User avatar

Joined: Sat Feb 07, 2009 4:12 pm
Posts: 1215
Location: Adelaide Australia
Geez man if that guy was that 'Good' then I wouldn't trust anything.


Top 
 Profile  
 
 Post Posted: Sun Nov 21, 2010 10:16 am 
Offline

Joined: Wed Sep 29, 2010 9:40 am
Posts: 26
Location: forest pk ga
giving engine full tear down and sending to local shop for total inspection
will get back with results


Top 
 Profile  
 
Display posts from previous:  Sort by  
 
Post new topic Reply to topic  [ 6 posts ] 

Board index » Racing Forum » Engine & Cylinder Head Tech


Who is online

Users browsing this forum: No registered users and 6 guests

 
 

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to: