Club Cobra Gas - N Exhaust  

Go Back   Club Cobra > Engine Building, Tuning, and Induction > Small Block Talk

Nevada Classics
Keith Craft Racing
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
Keith Craft Racing
Advertise at CC
Banner Ad Rates
Keith Craft Racing
MMG Superformance
Keith Craft Racing
November 2025
S M T W T F S
            1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30            

Kirkham Motorsports

Reply
 
LinkBack Thread Tools Rate Thread Display Modes
  #1 (permalink)  
Old 05-17-2011, 12:18 PM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2011
Cobra Make, Engine:
Posts: 67
Not Ranked     
Default Change of oil and found metallic spring etc inside - need your advise.

Hello,

I Changed the oil and found metallic spring, a tiny sphere and a cup
inside my oil. It was trapped on the oil filter magnet. I really need
your advise. Please see attached image.



I have a Performance Engineering 408 Windsor Stroker Cobra Special.

Best - Andronikos,
Reply With Quote
  #2 (permalink)  
Old 05-17-2011, 01:02 PM
mreid's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2008
Location: Chester Springs, PA
Cobra Make, Engine: Kirkham 289 FIA #690, FRPP 427 Boss engine
Posts: 764
Not Ranked     
Default

Remove the pressure sensor can and inspect it. It looks like the guts as much as I can tell from the blurry picture, but that is the only way to truly know. If so, I wouldn't worry about it. The filter picked it up, not the pump.
__________________
RCR GT40 SOLD to Fast 5
Kirkham #690 289 FIA
Reply With Quote
  #3 (permalink)  
Old 05-17-2011, 02:04 PM
Gaz64's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2008
Location: Brisbane, QLD
Cobra Make, Engine:
Posts: 2,797
Not Ranked     
Default

I'd say it's the oil filter bypass valve from within the oil filter.

(A spring loaded valve that opens when the filtered is blocked excessively.)

In other words your engine has been running on unfiltered oil.

I'd have the previous oil tested and change your brand of oil filter.
__________________
Gary

Gold Certified Holden Technician
Reply With Quote
  #4 (permalink)  
Old 05-17-2011, 05:33 PM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2011
Cobra Make, Engine:
Posts: 67
Not Ranked     
Default

I also think it is from the oil filter. For the record the oil filter is the Motorcraft FL300 filter. I will switch to the Ford Racing High Performance oil filter part# CM-6731-FL1A as perfeng.cc guys recommended.

(tiny sphere is 5mm diameter)

Here are some hi res (clean pics)






Last edited by andronikos916; 05-17-2011 at 05:43 PM..
Reply With Quote
  #5 (permalink)  
Old 05-17-2011, 06:35 PM
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2004
Location: toronto, ont
Cobra Make, Engine: 408w 500 h.p. 550 ft.lbs
Posts: 562
Not Ranked     
Default

I think you need to be looking elsewhere.
I don't think that 5mm. ball is large enough to be a oil filter bypass. cut your filter apart & have a look, only takes a few minutes.
I'd be talking to Eric before I fired that puppy up again.

JMO

Craig
Reply With Quote
  #6 (permalink)  
Old 05-17-2011, 08:41 PM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2005
Location: Near Chattanooga, TN
Cobra Make, Engine: SPF, 418 Stroker
Posts: 220
Not Ranked     
Default

Another possibility: the pressure relief valve from the oil pump. Although the spring looks a little too wimpy for that.
Just an idea.
Reply With Quote
  #7 (permalink)  
Old 05-17-2011, 06:32 PM
DonC's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Jun 2003
Location: West Linn, OR
Cobra Make, Engine: ERA #684, 428 FE, TKO600
Posts: 1,378
Not Ranked     
Default

Pretty sure that's the pressure bypass spring, ball and cup from the oil filter adapter. It's function is to bypass the filter if the pressure inside it gets too high from the filter being clogged so at least you get oil to the engine even if the filter is clogged.
I replaced two of them and finally went to an external adapter without the bypass. The problem is in the way they seat the retaining cup. It's just a press fit and can pop out without a lot of trouble. Changing the filter won't do any good since the problem is in the adapter.
DonC
Reply With Quote
  #8 (permalink)  
Old 05-17-2011, 10:19 PM
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2003
Location: PVE, CA
Cobra Make, Engine: ERA 289 FIA #2027, 65' 289" PS wheels
Posts: 345
Not Ranked     
Default

Oil pump pressure relief valve was the case in my 1967' 327 Corvette...

Oil pressure was great except under braking, accelerating or had cornering.

Pulled the pan and found a "press-fit plug" that eventually I realized had popped out of the side of the oil pump body, probably on initial start up. Found the plug first time I pulled the oilpan...put it on the bench as a monument to careless junk in the engine...pulled the pan 2 more times, adjusting the pickup to no avail...finally pulled the pump and the pressure relief plug was out...

Simply using a cold chisel to stake the plug would have saved the crank.

I have no idea what the valve assembly in a filter or Ford oil pump looklike, but if there are ANY drops in oil pressure, suspect the pump.

Pete
__________________
ERA 289 #2027
Reply With Quote
  #9 (permalink)  
Old 05-17-2011, 11:10 PM
Barnsnake's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Nov 2003
Location: Parker County, Tx
Cobra Make, Engine: LoneStar LS427 , 427 Windsor
Posts: 381
Not Ranked     
Default

I don't believe there's any way those objects came through the oil pump. If you're running a remote oil filter I believe DonC's answer is one to follow-up on.
__________________
Jim
------------
A Gnat! Quick, get a sledgehammer!
Reply With Quote
  #10 (permalink)  
Old 05-18-2011, 04:00 AM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2011
Cobra Make, Engine:
Posts: 67
Not Ranked     
Default

Also I need to mention that a week ago - I notice that the oil pressure gauge died.

Note sure if this is helping solving the mystery... I am going to cut my spare filter now and report back.

thanx - Andronikos,
Reply With Quote
  #11 (permalink)  
Old 05-18-2011, 07:13 AM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2011
Cobra Make, Engine:
Posts: 67
Not Ranked     
Default

So here is the Motorcraft FL-300 filter and all the internal parts... No spring or anything like the 3 tiny parts I found in my oil. So I guess I have to check what Mr.DonC is saying.

Reply With Quote
  #12 (permalink)  
Old 05-18-2011, 08:36 AM
kitcarbp's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2004
Location: Potomac, MD
Cobra Make, Engine: West Coast, 460 Ford Racing Crate w/ TREMEC TKO 600
Posts: 732
Not Ranked     
Default

I'd agree with DonC. Since you added the info your oil pressure gauge stop working, perhaps thats because you have no oil pressure. If you havent figured out the root cause yet, a few pics of how you have your system plumbed would help us. perhaps (remote adapter??) the filter was mounted to spewed the parts. You've eliminated the filter at least, but the components you found are definitely a by-pass or check valve. perhaps you're using a remote mount system and its adpater has lost its valve. In any case, it goes without saying not to start that motor until you can confirm you have oil pressure using a hand held mech, test gauge while CRANKING engine with fuel/spark disabled. good luck. If it was the remote adapter, please share the brand and part number so other folks here can be aware.
__________________
"...some assembly required, ages 8 and up...... well that took longer than expected......
Reply With Quote
  #13 (permalink)  
Old 05-18-2011, 08:53 AM
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2004
Location: toronto, ont
Cobra Make, Engine: 408w 500 h.p. 550 ft.lbs
Posts: 562
Not Ranked     
Default

Don't be cranking the engine unless you are sure you have oil pressure first.

Pull the distributor & use a drill with a oil pump drive shaft to check things first. That way there will be no further harm to engine.

Craig
Reply With Quote
  #14 (permalink)  
Old 05-22-2011, 06:51 AM
392cobra's Avatar
6th Generation Texan
Visit my Photo Gallery

 
Join Date: Feb 2002
Location: Devil's Backbone,RR 32, TX
Cobra Make, Engine: Lone Star Classics #240,Candy Apple Red,Keith Craft 418w - 602 HP,584 TQ
Posts: 8,157
Not Ranked     
Default

Quote:
Originally Posted by andronikos916 View Post
Also I need to mention that a week ago - I notice that the oil pressure gauge died.

thanx - Andronikos,
!st,I'm sorry about your engine build problem.I hope it doesn't end up leaving a bad taste for Cobras.

With your pushrods disappearing down the holes,I think the lifters being launched out of their bores certainly had a bad effect on the oil pressure.

Good job on the video.
Reply With Quote
  #15 (permalink)  
Old 05-22-2011, 09:27 AM
DAVID GAGNARD's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
Not Ranked     
Default

Diagnosing the problem by the photos is almost impossible in this case, breaking off the rocker studs indicate you have a valve train problem, find it and fix it, and you'll be fine.....I would leave things as they are now and contact the engine builder...not sure if there is any warranty or not at this point, but would definetly get with the builder if nothing else to find out about how the engine was built and the components used.....
Something ain't right under the valve covers...........

David
__________________
DAVID GAGNARD
Reply With Quote
  #16 (permalink)  
Old 05-18-2011, 09:15 AM
mreid's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2008
Location: Chester Springs, PA
Cobra Make, Engine: Kirkham 289 FIA #690, FRPP 427 Boss engine
Posts: 764
Not Ranked     
Default

Now that I see the high resolution pictures, that is definitely the bypass check valve from the oil pump. It looks like someone staked the plug with a chisel with such force that it split the plug. That weakens it to the point of being worthless. You will need to drop the pan and inspect the pump. You will see exactly where it came from and can replace the pump. This is the best picture I could find. The pump on the right shows the plug, while the one on the left features an adjustable valve.

http://rds.yahoo.com/_ylt=A0PDoX_J4d...2boil_pump.jpg
__________________
RCR GT40 SOLD to Fast 5
Kirkham #690 289 FIA

Last edited by mreid; 05-18-2011 at 09:18 AM..
Reply With Quote
  #17 (permalink)  
Old 05-18-2011, 03:36 PM
DonC's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Jun 2003
Location: West Linn, OR
Cobra Make, Engine: ERA #684, 428 FE, TKO600
Posts: 1,378
Not Ranked     
Default

Still trying to figure out how the parts ended up in the pan. Only thing I can think of is what someone mentioned previously that they came from the oil pump. Not sure if yours has a pressure bypass/adjustment or not but that would be my best idea of where it came from.
Worth getting the specs on the pump and checking it.
Can't see how something from the valve train would get to the pan. Don't know of any opening large enough to let something like that through.
DonC
Reply With Quote
  #18 (permalink)  
Old 05-18-2011, 05:12 PM
PANAVIA's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2008
Location: San Jose CA, CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
Not Ranked     
Default

The only other thing I can think of here is that these are part of a hydraulic lifter.

were you able to drop the pan and review the oil pump >?
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
Reply With Quote
  #19 (permalink)  
Old 05-19-2011, 11:06 AM
mreid's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2008
Location: Chester Springs, PA
Cobra Make, Engine: Kirkham 289 FIA #690, FRPP 427 Boss engine
Posts: 764
Not Ranked     
Default

The plunger on a hydraulic lifter is retained by an internal c-clip. If those parts came from the lifter, it would mean that one cylinder will have a loose rocker arm as there is nothing to support the pushrod. The easiest way to check this is to remove the valve covers and inspect the rockers. This is a very easy check that you can do yourself and should be done before you remove the pan. Also, if this is the case, you would hear a very pronounced (noticable) ticking as you rev the engine. It also could be the cause of your acceleration issue, but it would be noisy.

If that is not the issue, your acceleration problem sounds like carb tuning to me.
__________________
RCR GT40 SOLD to Fast 5
Kirkham #690 289 FIA
Reply With Quote
  #20 (permalink)  
Old 05-19-2011, 02:40 PM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2011
Cobra Make, Engine:
Posts: 67
Not Ranked     
Default

Yes there was a small "tick". You know these cars are loud and sometimes difficult to notice that - especially if you are newbie. This tick was while accelerating from 1500rpm - 2500rpm. At least I noticed that twice while returning my car home.

Eric from PE mentioned that I can also buy the "Comp Cams Pro Magnum hydraulic roller lifter set (#8931-16)".

Do you think that they are better than the normal "Ford Racing hydraulic roller lifters"? I guess they are - but are more durable etc?

The price difference is huge. 120$ for Fords vs 530$ for the Comp Cams.


So what I am planning to buy to be sure I have all necessary stuff:

1 x Comp Cams Pro Magnum hydraulic roller lifter set (#8931-16)
or
1 x Ford Racing hydraulic roller lifter set

1 x Fel-Pro intake gasket set
1 x Comp Cams push rod set
2 x Scorpion roller rocker arms
1 x Fel-Pro valve cover gaskets


Best - Andronikos,

Last edited by andronikos916; 05-19-2011 at 02:42 PM..
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 09:19 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy
Links monetized by VigLink