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Thread: Knock, Knock. Who's there.....

  1. #1
    Join Date
    Dec 2007
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    Orange County Ca
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    Knock, Knock. Who's there.....

    I just changed my oil in my 03 mm and my annoying valve train ticking is now knocking. There is plenty of oil per the dip stick and the pressure gauge says 68 psi. when I cold start it, it knocks loud then calms dow a bit but is definitely worse than before. idle is smooth and
    seems to have plenty of power driving, I just drove it 40 miles and it didn't get worse but didn't get better either. any Idea's what's knocking? doesn't sound quite like a rod bearing but it's worse then valve noice???? I have never heard a main knock so it could be that. i removed the belt to take away the ps, ac and alt. and still knocked so it's not an accessory.

    the car has 130k on the clock so it's no spring chicken but it's not an old timer either. does anybody think that a new top end would fix
    it or does it sound like I need an entire motor?

    or is there a chance it's a flat lifter? though I put a rod on the rocker covers to listen if the noice was coming from there and it seems it's
    coming from lower in the motor then the rockers.
    2003 Silver Birch Marauder tune by Marty, best $150 I ever spent

  2. #2
    Join Date
    Apr 2010
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    130k miles....all stock? No tune? Never opened up? Timing components done? Oil filter housing gasket ever replaced? Ran it low on oil for a while? Cooling mod ever done? Over heat it?


    I'm at 200k but fully maintained and serviced. I couldn't tell You why it's "knocking" but I listed a few things that could make this engine skip a beat. Once it does, You gotta do a full rebuild or find an Aviator engine (block and heads). Swap over the Marauder components. Hope You can save it!


    Sent from my iPhone using Tapatalk Pro

  3. #3
    Join Date
    Dec 2007
    Location
    Orange County Ca
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    it does have a mild tune from Marty but other than that it's stock. I have only owned it for the last 8k miles so I don't really know it's history, it had normal valve train ticking when I got it, it's never overheated since I have had it and the oil does not smell burnt but it's got less then 100 miles on the oil change, the old oil doesn't smell burnt either.
    Does ford still carry factory rebuilds of this engine?
    2003 Silver Birch Marauder tune by Marty, best $150 I ever spent

  4. #4
    Join Date
    May 2009
    Location
    Moreau Island
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    Exhaust manifold leak can make noises like this. Worth a quick check.

  5. #5
    Join Date
    Jun 2011
    Location
    Northeast OH
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    7,628
    Stock oil pressure gauge does not read actual pressure, it has no sending unit. Is your gauge factory or did you swap to swap to a real gauge?
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  6. #6
    Join Date
    Feb 2006
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    Rosemount, MN
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    Can you tell where the knocking is coming from? Any chance you could take a short video and post it?

  7. #7
    Join Date
    Dec 2007
    Location
    Orange County Ca
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    it's the stock pressure gauge I know it's not direct pressure but it's better than nothing....

    I put a socket extension to my ear and probed around it's not coming from the rocker covers I touched it to the timing cover and it was louder then the rocker covers
    so I think it's coming from the bottom end or timing chain tensioners could they have lost their padding? what kind of noise would that cause?

    I drove it aprox. 40 miles making that noise if it were a rod bearing or main bearing I think the engine would have siezed up.

    I'll take a video this afternoon and hopefully I can catch it on audio
    2003 Silver Birch Marauder tune by Marty, best $150 I ever spent

  8. #8
    Join Date
    Mar 2008
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    Quite possibly a failed timing chain tensioner.


    Sent from my iPhone using Tapatalk Pro


    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  9. #9
    Join Date
    Dec 2007
    Location
    Orange County Ca
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    here is 40 seconds of my car from cold start to shut down, it seems worse today after sitting 24 hrs this was the first startup since last night
    any input??? as you can see the serpentine belt is removed so it's just the engine not any accessories.

    if it won't play use the link

    https://youtu.be/EGWOlwDCT90


    2003 Silver Birch Marauder tune by Marty, best $150 I ever spent

  10. #10
    Join Date
    Feb 2017
    Location
    New Orleans, LA
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    I didnt watch the video but most likely the timing chain tensioners

    it sounds like you didnt put a motorcraft oil filter on it?
    '03 Marauder 300A - 87 Octane Race Tune
    O&E Speed Shop - 2333 Aberdeen St. Kenner, LA
    EFI Calibrator - decipha @ EFIDynoTuning
    http://www.efidynotuning.com/tune.htm

  11. #11
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    Knock, Knock. Who's there.....

    Yep, sounds like a tensioner no longer pumping up. More than likely a plastic version that cracked. Make sure to replace with the metal version if that ends up being the culprit.

    If that is indeed the issue I’d quit driving it as you will be destroying the guides and sending chunks straight south to the oil pump. Just turning the engine over by hand with the timing cover off you get an amazing amount of slap on the one side from the all the valves holding it tight and then releasing.

    Ford Racing sells a nice complete kit minus gaskets that I use. https://www.summitracing.com/parts/f...model/marauder

    Actually with that sound I wouldn’t drive it anyways..


    Sent from my iPhone using Tapatalk Pro


    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  12. #12
    Join Date
    Dec 2007
    Location
    Orange County Ca
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    Well that sux what is the problem with a non motorcraft filter?
    shouldn't the parts house know that it has to be a motorcraft filter?
    can I sue Orielly auto parts for selling me the wrong filter?

    How difficult of a job is it removing the timing cover can it be done in the chassis or does the engine have to be removed?
    I have the tools but haven't done this big of a job in a long time. last year I put new cams in my twin cam harley I assume
    it's a similar job. do the heads have to come off?

    should I replace the cams while I'm at it? with what?
    any other fixes I should do while the engine is apart?
    2003 Silver Birch Marauder tune by Marty, best $150 I ever spent

  13. #13
    Join Date
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    The motorcraft filter has a check valve built in to prevent dry starts. Most aftermarket filters dont have this feature. I doubt you can sue Oreillys. Its one of those owner beware things.

    If you have some mechanical ability you can do the job yourself and yes it can be done with the engine in place. No the cams dont have to be replaced as they hardly wear. Just make sure you use OEM steel tensioners and not the plastic ones. Taska is a good place to get all the parts.

    Good Luck!

  14. #14
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    what is Taska, I see a Tascaparts.com is that what you are talking about?
    did you listen to the video is that what the tensioner noise sounds like?

    Im wondering how difficult it is to seal up the cover without taking the oil pan down?
    I guess loads of black RTV would stop any oil leakage.
    Last edited by seanpatrick2000; 07-30-2020 at 09:21 AM.
    2003 Silver Birch Marauder tune by Marty, best $150 I ever spent

  15. #15
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    That was a typo.. You got it right! Tascaparts.com
    The cover is designed to be removed while the oil pan is in place. Not loads of RVT just dabs in specific places

    I would do a compression test just to be on the safe side.

    Do you have the PDF file on the assembly? If not look this over. The timing assembly starts @ page#6
    http://www.terminator-cobra.com/Cobr...e_Assembly.pdf

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