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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

what the heck is this??? now what?

  • Thread starter Thread starter screamin gt
  • Start date Start date Apr 20, 2007
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screamin gt

5 Year Member
Apr 9, 2007
393
6
28
central CT
Apr 20, 2007
#1
  • Apr 20, 2007
  • #1
well got the engine out and torn down slightly. (due to making a heck of a knocking sound)

so anyway when I removed the oil pan I found a few things... lots of metal shavings (which I didn't find when I drained the oil while the motor was in the car btw), and about half of a washer looking thing. what is there is also a little cracked. whatever it is is in bad shape and most likely cause the problem.

took apart some of the head (the valve train from the cylinder that got the bad compression before) and there is nothing there that even resembles this piece I found in the oil pan. closest thing to it is the outer edge of the valve spring retainer, but it doesn't match up perfect. I sat a retainer next to the chunk I found in the oil pan to give you an idea in the picture.

anyone know what this could be?

now the other question is, do I scrap this motor and just find another one or keep going? I really wasn't planning on pulling the crankshaft and rebuilding everything is going to cost more than just buying a new motor. I really though the problem would be in the heads but they look fine so far.

 
D

DerekStangGT

My package is in the mail!
Feb 18, 2003
1,068
0
36
Apr 20, 2007
#2
  • Apr 20, 2007
  • #2
i cant really make out what that is from the pic, but it seems like you may have been sabataged. any enemies that could catch you with your hood up?
 

blkhorse

Founding Member
Oct 30, 1999
345
1
18
Apr 20, 2007
#3
  • Apr 20, 2007
  • #3
the shaving's are likely bearing babbit,the half moon piece,no idea.kinda looks like the oil pan drain plug sealing washer
 

99MustangGTman

New Member
Feb 27, 2007
7
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1
Apr 20, 2007
#4
  • Apr 20, 2007
  • #4
sounds like a spun rod bearing to me
 
0

01Steeda

New Member
May 29, 2005
732
0
0
Baton Rouge, LA
Apr 20, 2007
#5
  • Apr 20, 2007
  • #5
99MustangGTman said:
sounds like a spun rod bearing to me
Click to expand...

same here
 

screamin gt

5 Year Member
Apr 9, 2007
393
6
28
central CT
Apr 20, 2007
#6
  • Apr 20, 2007
  • #6
blkhorse said:
the half moon piece,no idea.kinda looks like the oil pan drain plug sealing washer
Click to expand...

I was thinking washer or retainer or something like that too, till I looked close. should have mentioned the inside portion of that is recessed.

anyway if it is a spun bearing, then chances are the crankshaft is cooked as well, so if I change that I'm looking at all new rod bearings right? any ideas what this is going to run $wise?

I'm thinking about just buying a transplant
 
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01Steeda

New Member
May 29, 2005
732
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Baton Rouge, LA
Apr 20, 2007
#7
  • Apr 20, 2007
  • #7
if the rods aren't damaged you'll be looking at about 800 doing all the work yourself.

thats if the crank is to far gone to be resurfaced.

you'r better off just paying the extra and getting it forged.
 

the98stang

Active Member
Aug 12, 2005
2,408
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47
Clovis, CA
Apr 21, 2007
#8
  • Apr 21, 2007
  • #8
I have no idea wtf that is. Either way, the engine will need a rebuild or you'll need a new shortblock. I would just buy a forged shortblock from MMR and use your stock heads. It would cost about $2800.
 

screamin gt

5 Year Member
Apr 9, 2007
393
6
28
central CT
Apr 22, 2007
#9
  • Apr 22, 2007
  • #9
I priced everything out, and as long as the crank and pistons are good, I'm going to attempt a rebuild. the cyls. look good so far, you can still see the cross marks from honing.

summit has a rebuild kit with piston rings and all gaskets for $388 so I think I'm going that route with a few upgrades along the way... anyone ever use that kit?
 

blkhorse

Founding Member
Oct 30, 1999
345
1
18
Apr 22, 2007
#10
  • Apr 22, 2007
  • #10
You did not mention what year it is(or I did'nt pay attention).but I have stock rods out of a 2000,if you have a bad rod,I will give you one.just pay shipping.also have a windsor 8 bolt crank that will polish up nicely,that I would let go next to nothing
 

screamin gt

5 Year Member
Apr 9, 2007
393
6
28
central CT
Apr 23, 2007
#11
  • Apr 23, 2007
  • #11
blkhorse said:
You did not mention what year it is(or I did'nt pay attention).but I have stock rods out of a 2000,if you have a bad rod,I will give you one.just pay shipping.also have a windsor 8 bolt crank that will polish up nicely,that I would let go next to nothing
Click to expand...

I'll definately keep that in mind, I'll let you know soon too.

also that kit I previously mentioned... just realized they only have that for 96-98, so I have to keep looking there too
 

Dusstbuster

I love meat more than anything! I just have a spec
May 31, 2004
1,462
33
64
Moorhead, Minnesota
Apr 23, 2007
#12
  • Apr 23, 2007
  • #12
If you're going to be replacing internals you might as well replace them with forged parts. That way you have peace of mind for the future if you ever get the big HP # bug.
 
0

007

Founding Member
Jan 29, 2002
3,287
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69
Broke
Apr 23, 2007
#13
  • Apr 23, 2007
  • #13
Dusstbuster said:
If you're going to be replacing internals you might as well replace them with forged parts.
Click to expand...

Definitely true. If your doing that much work you may as well beef it up.
 

screamin gt

5 Year Member
Apr 9, 2007
393
6
28
central CT
Apr 24, 2007
#14
  • Apr 24, 2007
  • #14
trying to keep costs as low as possible, but so forged parts are pretty much out...

anyway final verdict is 2 bad rod bearings, #4 and #8. crank looks ok to me but I guess I'll be taking it somewhere to have it checked out.
 

RandyStinchcomb

New Member
May 25, 2005
1,159
3
0
Randallstown, Md
Apr 24, 2007
#15
  • Apr 24, 2007
  • #15
make sure you put a new oil pump in as that part looks like part of the pressure relief valve in an oil pump
 

camaroguy72

20+ Year Stangneter
Mar 10, 2003
659
1
18
Apr 24, 2007
#16
  • Apr 24, 2007
  • #16
screamin gt said:
trying to keep costs as low as possible, but so forged parts are pretty much out...

anyway final verdict is 2 bad rod bearings, #4 and #8. crank looks ok to me but I guess I'll be taking it somewhere to have it checked out.
Click to expand...

i was over in your garage last night and took a peak haha.. you are going to have your crank resurfaced... just because it looks okay, it is somewhat warped
 
G

GSP

New Member
Apr 8, 2004
55
0
0
Huntsville, Alabama
Apr 24, 2007
#17
  • Apr 24, 2007
  • #17
I am running a 2003 CV motor from a totaled cop car in my 99. Got it for $1500 with 9K miles on it. You might get lucky and find one.
 

screamin gt

5 Year Member
Apr 9, 2007
393
6
28
central CT
Apr 25, 2007
#18
  • Apr 25, 2007
  • #18
bringing everything out tommorrow to accurate in middletown, he doesn't do heads though so I have to bring those elsewhere.

thanks for the tip on the oil pump, didn't think of that but it makes sense, that piece was in the very front of the oil pan
 

screamin gt

5 Year Member
Apr 9, 2007
393
6
28
central CT
May 17, 2007
#19
  • May 17, 2007
  • #19
blkhorse said:
You did not mention what year it is(or I did'nt pay attention).but I have stock rods out of a 2000,if you have a bad rod,I will give you one.just pay shipping.also have a windsor 8 bolt crank that will polish up nicely,that I would let go next to nothing
Click to expand...
pm sent
RandyStinchcomb said:
make sure you put a new oil pump in as that part looks like part of the pressure relief valve in an oil pump
Click to expand...

took apart the oil pump completely and everything looks fine, may still look into a new one though


total from the machinest including price of a crankshaft kit with bearings, and piston rings, heads ported,polished,valve job is under $1400

still need to find main bearing bolts, other than that head change kit and all other gaskets needed is about $300, plus new clutch and I should be done with the whole thing for under $2000
 

Dusstbuster

I love meat more than anything! I just have a spec
May 31, 2004
1,462
33
64
Moorhead, Minnesota
May 17, 2007
#20
  • May 17, 2007
  • #20
screamin gt said:
pm sent


took apart the oil pump completely and everything looks fine, may still look into a new one though


total from the machinest including price of a crankshaft kit with bearings, and piston rings, heads ported,polished,valve job is under $1400

still need to find main bearing bolts, other than that head change kit and all other gaskets needed is about $300, plus new clutch and I should be done with the whole thing for under $2000
Click to expand...


Get forged parts or you'll kick yourself later when the supercharger/turbocharger/nitrous bug hits you and you want 450+HP and can't do it safely with stock internals.
 
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