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-   -   Engine go BOOM. (http://www.460ford.com/forum/showthread.php?t=164462)

twekd1 06-10-2013 10:46 AM

Engine go BOOM.
 
Well it didn't actually blow up, but I took 2 passes and once the motor warmed up coming back to the pit my oil pressure went to 0 at low idle. I cut open the oil filter and it was all sparkley. Engine has to come out now. Hopefully I can have it back tougher soon. ;-(

twekd1 06-10-2013 12:06 PM

My guess and please chime in if you have a clue. My oil pan is stock so it only holds 6 qts of oil total. I have heard that at higher rpms (5600) I may be running the pan dry? (I didnt look at the oil gauge wile taking the pass) Has anyone heard of this or should I be looking at something else?

Once its torn down I will have a better clue. and please wile i have it on the machine shop should I be doing anything special / tricks. To keep this BBf tougher?

D Pope 06-10-2013 02:34 PM

A more likely scenario is the oil sloshing away from the pickup on acceleration and the pump sucking air. A rear supm pan and baffles cures this problem.

twekd1 06-10-2013 03:33 PM

It is a rear sump pan. The stock bbf conversion pan.

TorinoStyle2 06-10-2013 03:56 PM

High volume pump, or standard??

460VEGA 06-10-2013 06:08 PM

Broken pump shaft?

twekd1 06-11-2013 11:54 AM

Its a standard pump. The pressure acts like the engine has 150k miles. Hopefully i will start to pull the motor tonight and get it to the machine shop where I can have it diagnosed and figure out where my problem is.


In my theory if i am pushing all the oil in the top of the motor, and running the pump dry at high rpms it would tear out all the bearings pritty quickly and cause the problem i am having, but its all just a guess until i can get it apart and see what is getting tore up.

has anyone here had to open up any oil passages or anything like that to get the flow of oil to the pan quicker.

68montego 06-11-2013 03:13 PM

Yeah there are oil passage mods. I don't know what they are off hand but I think Paul Kane does and I'm sure some others know.

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TorinoStyle2 06-11-2013 04:36 PM

Yes, go to www.HighFlowDynamics.com and click on "oil mods".
Yes, it is possible to be running the pan dry, and an extra quart of oil would be good insurance against such condition.

A70Maverick 06-11-2013 07:43 PM

I find it hard to believe your sucking a rear sump pan dry at 5,600 rpm with a stock pump. I'm guessing there's another issue here.

twekd1 06-12-2013 10:49 AM

Engine is out and dropped off at Fred Mandoline's MPD Performance to see what is going on in there. He said I should have answers early next week. I hope its nothing major and he can find me some extra hp.

jkcamperspecial 06-12-2013 07:04 PM

sounds like what happen to my sweet 472 ...but i pushed mine for a 3rd pass as pressure wasnt at 0psi but was weird...up and down and the 3rd pass pushed #4 cam bearing out and went boom! took every install step very seriously 0n my new 545!about the only thing i salvaged on short block was the timing cover and water pump:(:( good luck!

bigblockpaul 06-12-2013 11:47 PM

yes
 
very familar to what mine used to do with same oil pan.the oil would go up back of pan and run dry and burn the mains and rod bearings and the break rods off.had it happen 3 times in one season.Got a better pan with baffles and never had the problem again,

twekd1 06-13-2013 04:29 PM

I have a feeling this is why the original motor blew up also (same pan)

Still waiting for an answer from the machine shop. To my knowledge the machine shop is the best guy around MPD performance. Its is an honor to have the master Fred Mandoline work on my scrap, he is usually working on blown alcohol funny car engines tho, I hope he can help with my junk.

What is a good pan to use that will fit in a fox body mustang?
(I am thinking already I will have to cut my k member and weld in something new to clear the new pan)

bigblockpaul 06-13-2013 11:27 PM

lots
 
lots of good Pans.Mines a Canton.but also Moroso makes a good few also


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