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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

My possible rod knock *VID*

  • Thread starter Thread starter juiced_94gt
  • Start date Start date Sep 18, 2007
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sleeperstang199

New Member
Jun 21, 2007
78
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0
harrisburg, Pa
Nov 6, 2007
#61
  • Nov 6, 2007
  • #61
i have AFR heads and i had the same noise after my install. i had to lengthen my PR's from 6.27(stock) to a 6.40. good luck
 

WHITE94COBRA

New Member
Nov 14, 2003
816
0
0
HUNTINGTON BEACH
Nov 6, 2007
#62
  • Nov 6, 2007
  • #62
Stock length is 6.375.

sleeperstang199 said:
i have AFR heads and i had the same noise after my install. i had to lengthen my PR's from 6.27(stock) to a 6.40. good luck
Click to expand...
 

5spd GT

"the 5.0 owns all"
Founding Member
Aug 7, 2002
9,516
6
99
Arkansas
Nov 6, 2007
#63
  • Nov 6, 2007
  • #63
Stock length is 6.272" from tip to tip...
 

WHITE94COBRA

New Member
Nov 14, 2003
816
0
0
HUNTINGTON BEACH
Nov 6, 2007
#64
  • Nov 6, 2007
  • #64
hmmmmm mine were 6.375's. Are the cobra's different.

5spd GT said:
Stock length is 6.272" from tip to tip...
Click to expand...
 

juiced_94gt

Active Member
Mar 30, 2005
1,143
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36
Southern California
Apr 27, 2008
#65
  • Apr 27, 2008
  • #65
Ok I pick up my motor on monday, it had two blown pistons and one scared cylinder wall which L&R Automotive in santa fe springs said it would hone out, they replaced two pistons I got new rings and bearings with a re-balanced rotating assembly for $900.00 he promissed it would be fine now and to have it re-tuned because he said that it didnt seem to be a build issue with the motor, Steve powertrain dynamics had tuned it so im going to have him look at it, he has too good of a reputation around here so I think im going to let him re-tune it unless there is somebody better that anybody knows about here in southern california... While it has been down I had the headers ceramic coated, PS and ALT brackets powder coated in xtereme chrome along with my C&L inlet tube and changed my hyperblack saleens for chrome saleens, Im hoping to be rolling again in two weeks.
 

Grn92LX

Fidanza Man!
Founding Member
Jan 14, 2001
6,819
64
129
New York
Apr 27, 2008
#66
  • Apr 27, 2008
  • #66
You didn't have CHP look at it and maybe fix it for free?
 

juiced_94gt

Active Member
Mar 30, 2005
1,143
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36
Southern California
Apr 27, 2008
#67
  • Apr 27, 2008
  • #67
Grn92LX said:
You didn't have CHP look at it and maybe fix it for free?
Click to expand...

They would not look at it, they said they only had a 90 day warranty and labor alone was going to be over a grand for me, they said one thing one day and when it came down to taking it to them they backed out... but they really aren't to blame, after the tear down it was obvious it leaned out and they wouldn't have fixed for free anyways within the 90 day period and it would have cost me ALOT more to fix. Given the work beign done I think I got a pretty good deal.
 
G

grngt50

Member
Apr 26, 2004
250
0
16
Los Angeles
Apr 27, 2008
#68
  • Apr 27, 2008
  • #68
juiced_94gt said:
Ok I pick up my motor on monday, it had two blown pistons and one scared cylinder wall which L&R Automotive in santa fe springs said it would hone out, they replaced two pistons I got new rings and bearings with a re-balanced rotating assembly for $900.00 he promissed it would be fine now and to have it re-tuned because he said that it didnt seem to be a build issue with the motor, Steve @powertrain dynamics had tuned it so im going to have him look at it, he has too good of a reputation around here so I think im going to let him re-tune it unless there is somebody better that anybody knows about here in southern california... While it has been down I had the headers ceramic coated, PS and ALT brackets powder coated in xtereme chrome along with my C&L inlet tube and changed my hyperblack saleens for chrome saleens, Im hoping to be rolling again in two weeks.
Click to expand...

I've heard the guys at ST. Motorsports are top notch from several local people.

-James
 

Grn92LX

Fidanza Man!
Founding Member
Jan 14, 2001
6,819
64
129
New York
Apr 28, 2008
#69
  • Apr 28, 2008
  • #69
juiced_94gt said:
They would not look at it, they said they only had a 90 day warranty and labor alone was going to be over a grand for me, they said one thing one day and when it came down to taking it to them they backed out... but they really aren't to blame, after the tear down it was obvious it leaned out and they wouldn't have fixed for free anyways within the 90 day period and it would have cost me ALOT more to fix. Given the work beign done I think I got a pretty good deal.
Click to expand...

Yes the $900 was a really good price for parts and labor for what you had done. Glad its all fixed, we look forward to seeing how it moves!
 

BlackVert

15 Year Member
Oct 3, 2003
5,589
9
98
Bethesda, MD
Apr 28, 2008
#70
  • Apr 28, 2008
  • #70
that's good news that you are getting back on the road soon

so did detonation cause your problem?
 

juiced_94gt

Active Member
Mar 30, 2005
1,143
0
36
Southern California
Apr 28, 2008
#71
  • Apr 28, 2008
  • #71
BlackVert said:
that's good news that you are getting back on the road soon

so did detonation cause your problem?
Click to expand...

He thinks it was a problem from the day I started it because I had 2 dead injectors and drove it about 80 miles that way which would mean it ran lean I suppose, Hes changing out one other piston that isnt scored up but didn't mic out to his specs so we'll change it now to avoid future problems.

Mario.
 

juiced_94gt

Active Member
Mar 30, 2005
1,143
0
36
Southern California
Apr 28, 2008
#72
  • Apr 28, 2008
  • #72








 

Venom351R

Founding Member
Apr 27, 2002
4,548
41
98
MAINE
Apr 28, 2008
#73
  • Apr 28, 2008
  • #73
wow that piston is jacked up !!!!!! Im glad you finally figured out what it was though.
 

StinkinLincoln

Member
Dec 9, 2006
240
0
17
Louisiana
Apr 29, 2008
#74
  • Apr 29, 2008
  • #74
boy i hate seeing carange like that
 

SQUEEZE&STROKE

New Member
Jun 24, 2005
0
0
0
SOUTHERN CA
Apr 29, 2008
#75
  • Apr 29, 2008
  • #75
That doesnt look like detonaton to me...I had motor lean out and it made holes in the TOP of the pistons, not tear up the skirts...There was no oiling problem was there? What about junk on the walls/in the oil? The ring lands are not even FUBAR...I think there may h ave been something else going on in there...Did it overheat or get real hot?
 

WHITE94COBRA

New Member
Nov 14, 2003
816
0
0
HUNTINGTON BEACH
Apr 29, 2008
#76
  • Apr 29, 2008
  • #76
Wow man, that sucks. I'm siding with squeeze here, that doesnt look like leaning damage, if the top of your piston was white or melted. that looks like an oiling issue or possibly a tolerance issue (piston too tight or too loose) . Thats really odd damage.


SQUEEZE&STROKE said:
That doesnt look like detonaton to me...I had motor lean out and it made holes in the TOP of the pistons, not tear up the skirts...There was no oiling problem was there? What about junk on the walls/in the oil? The ring lands are not even FUBAR...I think there may h ave been something else going on in there...Did it overheat or get real hot?
Click to expand...
 

SQUEEZE&STROKE

New Member
Jun 24, 2005
0
0
0
SOUTHERN CA
Apr 29, 2008
#77
  • Apr 29, 2008
  • #77
WHITE94COBRA said:
Wow man, that sucks. I'm siding with squeeze here, that doesnt look like leaning damage, if the top of your piston was white or melted. that looks like an oiling issue or possibly a tolerance issue (piston too tight or too loose) . Thats really odd damage.
Click to expand...



My thoughts exactly! Oiling or tolerances...
 

StinkinLincoln

Member
Dec 9, 2006
240
0
17
Louisiana
Apr 29, 2008
#78
  • Apr 29, 2008
  • #78
i second the last 2 motions! lol
 

BlackVert

15 Year Member
Oct 3, 2003
5,589
9
98
Bethesda, MD
Apr 29, 2008
#79
  • Apr 29, 2008
  • #79
yeah that looks more like sand in the oil or no oil at all or something like that.

pretty weird
 
B

Blown90Tbird

New Member
May 14, 2008
0
0
0
May 14, 2008
#80
  • May 14, 2008
  • #80
knock

did anybody hear the vacuum leak at idle or was I just imagining things? Regardless of what it is, take a weekend and pull it, check it, fix it before it becomes expensive.
Try a long screw driver to the ear trick (cheap stethoscope) try checking plugs, check the rockers, you could even do a compression check, and take a vacuum reading before pulling. So much to do without spending a dime. Trust me, I'm about as cheap as they come.
 
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