Pulled engine today and found... (pics)

epix

epix

Typhoon
We'll today all in one shot Scott K (UR50SLO), My stepdad, and I pulled the rebuilt engine (specs in sig) and dissembled the engine. The engine was rebuilt last year by us and was I just started driving again early this summer. On my way to syty homecoming the oil pressure dropped quickly so I had it towed home. Upon starting it again we heard the fan belt noise and I have an electric which meant most likely I spun a rod bearing.

First a couple pics of the day..
Workin:
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Heather's real nice Typhoon with some sweet wheels
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UR50SLO's sweet GN Powered Camaro
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Here are pictures of the oil pump where it broke in half, you can easily see the casting broke:

DSC_0445.JPG


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Upon disassambly the Melling M55A Oil Pump, was broke right in half. The oil pickup was just sitting in the bottom of the pan when we removed it. The bearings were toast, some of the rods look like they may be toast as well, also the crank is most likely trash.

I had put nearly 1000 miles on the engine before this happened. No matter what it sucks but it will be rebuilt.. Plans are to take block, crank, rods, etc to machine shop this week to find the extent of the damage and plan from there.

edit: removed pics of the damage for the time being.. I am not trying to make Melling look bad in anyway so I'll keep this thread updated as time goes on.
 
Last edited:
91blazins10

91blazins10

Active member
Re: Pulled engine today and found... (pics)

That sucks, I think I remember reading something bad about the new melling oil pumps on here.
 
epix

epix

Typhoon
Re: Pulled engine today and found... (pics)

Robert Lone said:
You could always go w/ a dry sump....

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
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no matter what its costing $$$$ :angry:

I'll give them a call tomorrow but I'm not expecting much..
 
kessler

kessler

New member
Re: Pulled engine today and found... (pics)

Not to Hijack the thread, BUT may i ask what traction bars are on the black TY in the pic above.

Sorry to see that happen to your ty hope it don't cost to much to fix it but it is a TY LOL
 
epix

epix

Typhoon
Re: Pulled engine today and found... (pics)

kessler said:
Not to Hijack the thread, BUT may i ask what traction bars are on the black TY in the pic above.

Sorry to see that happen to your ty hope it don't cost to much to fix it but it is a TY LOL
Click to expand...
I think they are South Side Lift or something, a now defunct out of business company. Do a search on South Side and you should find some info.
 
Aeroking

Aeroking

e.i.
Re: Pulled engine today and found... (pics)

i just bought a Melling M55 from Summit, maybe i should send it back??
 
ViciousV6

ViciousV6

400HP/550FTLB
Re: Pulled engine today and found... (pics)

Yep that 55a was make with alot thinner casting and that is the 3rd one that i saw break like that. If you compare the 2 side by side what a diffrent in the thickness.

This shit really sucks. Not only do you gotta worry about detonation but also if you got the right oil pump.

Ed Hess had this problem a while back and posted about it.

Ralph
 
S

sy1530

New member
Re: Pulled engine today and found... (pics)

I am seeing the same symptoms with my sy, at nats I lost oil pressure 60 miles from the hotel. I had to be towed back also. The motor has less th 2k on rebuild, with a new melling oil pump. I am willing to bet that I have the same problem, it would explain why I loose pressure at higher rpm's and gain pressure as the rpm's come down. Well to say the least it has to come apart, I am pretty sure I lost some bearings. :rant:
 
James Thomas

James Thomas

"NO CLASS"
Re: Pulled engine today and found... (pics)

Melling has been covering failur's. Now it's been a while and I don't know if they have any time limit etc. simular to an O.E.M. service recall but I would for sure at least try and raise a stink if they say no because as posted above, they are well aware of this problem and paid for more than a few rebuild (parts only, no labor... I think).
_______
James
 
Foot Performance

Foot Performance

Donating Member
Re: Pulled engine today and found... (pics)

James Thomas said:
Melling has been covering failur's. Now it's been a while and I don't know if they have any time limit etc. simular to an O.E.M. service recall but I would for sure at least try and raise a stink if they say no because as posted above, they are well aware of this problem and paid for more than a few rebuild (parts only, no labor... I think).
_______
James
Click to expand...

For sure i would try atleast but you would be surprised what they might do had a cloyes timing chain break and they bought me a new chain and cam and lifter set :tup:
 
B

blktyphoon

93 ty
Re: Pulled engine today and found... (pics)

dam what is the stock pump like?? im worried. how long was it till you realized the oil press was low?? good luck bro..
 
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