What's that clicking noise?

Discussion in ''Da Nailhead' started by Mister T, Jun 18, 2012.

  1. doc

    doc Well-Known Member

    Yup,,, I agree with Tom,,, collapsed lifter,,, I did not see any thing wrong with the cam lobe,,, did you Tom????
    I lube the lifter foot with molygrease .....
  2. telriv

    telriv Well-Known Member

    Cam lobe looked OK Doc while the engine was cranking. You can see the collasped lifter on the affected lobe if you look closely. The pushrod cup is sitting much deeper than the one next to it.

    Tom T.
  3. doc

    doc Well-Known Member

    Yeah, me also too,,, Tom,,,, there aint nothin wrong with that cam..... replace the lifter and then go on about his rat killing....:Brow::Brow:
  4. Bill Bailey

    Bill Bailey Well-Known Member

    :cool: I wouldn't give up the car yet, there are way too many people here to give a hand. Besides these things are just a learning experience, do not be afraid to learn from the pool of talent here ready and willing to go the distance with you. I had way more nightmares with my GS than you could ever imagine, and with the help here I have enjoyed the experience for about 11 years and 23,000 miles. I think most 401's have a slight lifter noise, but you definatly have a bad noise. IMHO you have a wiped lobe or lifter, I hope it's the later, but no reason to give up the ship. Get in touch with Jhn Everett before you dump your dream car. I hope I haven't offended you in any way, Best to you,
    Bill Bailey
  5. Mister T

    Mister T Just truckin' around

    Re: Where's that clicking noise?

    Answer - GONE

    Replaced both the lifter and pushrod. Turns out the pushrod had mushroomed into the rocker arm.:shock: There was very little left of the ball end. In fact, it would have become an unguided missile in short order, possibly causing untold carnage within the reciprocating mass.

    After break in, and an oil change (with the zinc additive Doc :Brow:) it was time to :3gears::3gears:

    On another note, the AC quit working. Oh well, at least I can drive it again!!!
  6. Babeola

    Babeola Well-Known Member

    Now that you are a lifter and pushrod expert, the AC should be a breeze! I had been following this thread and am glad it worked out for you.

    Cheryl :)
  7. bhambulldog

    bhambulldog 1955 76-RoadmasterRiviera

    I've never had A/C problems with the Roadmaster. ................
    No A/C ; No problems............
  8. 64 skylark mike

    64 skylark mike Well-Known Member

    Mister T,
    Tom, glad to hear you got the lifter problem fixed. That is one sweet ride. I am happy for you to have this car!! :beer

  9. Mister T

    Mister T Just truckin' around

    Thanks Cheryl! :beer It's going to be a long time before the expert title can be applied to my skill set.:pray: If not for the knowledge gleaned from others who went before me, I'd be lost in a lost world. :Dou:

    As for the AC, it's not high on the list right now. I told my mom she could drive it Sunday, if she wants. Wish I had the camera ready to catch her reaction. :shock::bglasses:
  10. doc

    doc Well-Known Member

    Glad you got your ride fixed,,, and you did it your self....:Smarty: that should boost your self confidence....knowledge,,, and ability...... now about the air..... cars of that era would slowly leak down untill the freon level got low enough that the low pressure safety switch would trip and the compressor would not come on any more.... and most likely that is all that it is....have it checked and put 1 can in is the usual cure....:Brow::idea2:
  11. Mister T

    Mister T Just truckin' around

    Thanks Doc. :beers2: Yup, all part of the leaning curve. Back in my youth, that engine would have been half apart the next day.:laugh: I owe you folks a big thanks for having done much of this before I came along.:) It's been many years since I tore an engine apart, and put it back together.

    As for confidence, anyone got a 727 Torqueflite or Ford FMX trans they need going through??:Do No: Been into those before. :idea2:

    The AC can wait for now, as my next project will be adjusting the cable clutch linkage since the engagement point is too low for my liking. Then I want an offset shifter handle, so it doesn't bang into my knee going into 2nd.:Dou:

    Now if the darn rain would cease, I could wash the car, and go :3gears::3gears::3gears:
  12. telriv

    telriv Well-Known Member

    Very happy the pushrod & lifter fixed the problem you had. Now for the question, "What caused it to happen on just that one???" After a short period of time it may rear it's ugly head again. We NEED to explore the question of why. Post pics of the affected parts/pieces to try & get a better understanding of the question "Why".
    As for the A/C. 1st. a '65 doesn't have any kind of safety switches built into it so the compressor will NOT come on if you accidentily turn it on. If the system is not blowing cool/cold, disconnect the wire AT the compressor so if it does accidentily gets put in the on position the compressor WON'T run. 2nd. when adding freon the biggest mistake that's made is NO oil is put back into the system & the compressor goes bad in short order. When freon leaks out oil goes with it. Wherever you see dirt/oil accumulation around a hose/fitting or other parts relating to the A/C system is usually where the leak is located.
    Been there, done that.

    Tom T.
  13. Mister T

    Mister T Just truckin' around

    Oddly enough, this was my exact thought after driving the car last night. Why did just one push rod fail?? Is it oil related?? How does the push rod get lubricated? Was it just a bad push rod?? Was it a fluke lifter failure that righted itself shortly after the damage had already begun??

    Frankly, neither my brother or I looked at the rocker arm. I'll have pics up later today. The missing push rod tip seems to exactly correspond to the gap depicted earlier in this thread.

    My plan is to drive it as much as possible over the next couple of weeks.
  14. gbsean

    gbsean Moderator

    glad you got it fixed Tom...as in PM's I suspected a collapsed lifter...could of just been a mfg defect...or it was not full of oil when installed...some debris got in during break in and would not stay pumped up...I will race you for pinks at BPG lol
  15. Mister T

    Mister T Just truckin' around

    How much head start do you need??:bla::moonu::laugh:

    Here's some photos of the damaged push rod:

    Top where it meets the rocker.

    Best image I could get showing damage

    Where it sits within the lifter.

    Entire push rod. It was perfectly straight.

    Using the flash.

    The old lifter was in good shape. If necessary, I can dig it out of the trash.
  16. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    The top of the pushrod is oiled from the rocker, I believe...comes through the rocker mounts and goes through the shafts to the rocker tips.
  17. gbsean

    gbsean Moderator

  18. doc

    doc Well-Known Member

    I would check to see if the shop cleaned the insides of the 2 rocker arm shafts.... that is really important on a nailhead... if not there is usually a ton of crud in there and it can cause problems... and the oil path is up thru the head to the rocker arm shaft stand then into the rocker shaft then thru the rocker arm to the socket for the pushrod.... and on the other side of the rocker arm,, the tip just splash lubes.... the socket side is under pressure.... unless the passageway is plugged with crud.... I dont think the pressure there is much, but it is a positive feed.....
    and yep,,, the pressure cut off switches came on later for the a/c..... just see if the compressor comes on when the switch is turned on.... then check both sides of the freon to see how much pressure you have..... i was not paying attention to the year of the car.... mumble,,,, mumble.... :Brow::Brow:mutter mutter:Brow::Brow:
  19. Mister T

    Mister T Just truckin' around

    The heads were disassembled, thermal cleaned, magnafluxed, valve job performed, then reassembled per machine shop invoice. I will watch closely, and if necessary, remove the cover to double check for anything unusual.:TU:

    AC compressor comes on, runs quiet, sight glass looks good with no bubbles, so perhaps it's just a flapper door that's stuck in the wrong spot. I'll delve deeper into it next weekend. It rained most of Sunday, so the car stayed indoors.:rant: If need be, I'll start a new thread in the AC forum.
  20. doc

    doc Well-Known Member

    The only way to check the rocker arm shafts is to remove them,,, remove both end plugs, then run a rifle cleaning brush thru them several times.... then flush with solvent and blow out with compressed air..... then replace the old plugs with new dorman plugs.... most shops will not do this....and they leave a ton of crud in there that stops up the oil passages and causes problems.... I would not trust any bodys word about this,,, I would do it myself and then I would know that it is all good.... people in shops will lie to you about such....I worked in shops in my young days and have seen it first hand....:Brow:
    there is usually really thick, black residue that has carbon, lead powder, ect . in it....and the volume is a 1/2'' cyl. the total length of the shafts....and can definitely affect how much and how clean the oil is getting to the rocker arms....:Smarty:

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