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  1. #16
    Do you ever leave? v8bulldogs's Avatar
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    Theres 4 like this, random intakes and exhausts:

    http://v8bulldogs.com/creedmoor/lifters.jpeg

  2. #17
    Do you ever leave? v8bulldogs's Avatar
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    Why?

  3. #18
    427
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    At least you caught it before it got really bad. Chinese lifters is my guess.
    I had a flat tappet failure too. Probably like half the people on here..

  4. #19
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    Weld'em up, they'll go again.....

  5. #20
    Do you ever leave? v8bulldogs's Avatar
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    Theres also another lifter stuck in the plunger down position and that ones also loose i looked at the tig but i see shes rubbed a couple lobes as well. Not sure of the brand of lifters they have FS inside them right at bottom. They have a captured ball and spring in the plunger and the face that contacts cam is some sort of screwed or pressed on part separate construction from main body.

    Cant remember if I got them from comp cams with the springs and cam or elsewhere. Not sure which way to go now as the turbos off it. Will have to decide wether to go another hydraulic but more suited to naturaly aspirated configuration or a solid or even a roller.

    Whats a roller conversion cost these days and whats the word on kits or brands to look at etc?
    Last edited by v8bulldogs; 15-01-2019 at 12:11 AM.

  6. #21
    Do you ever leave? DR327VK's Avatar
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    Anything performance go solid cam!! Get some good double valve springs installed, pushrods & rockers. DONE!

    But then why did it fail like that? surely it was Rev hard then!
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  7. #22
    Sure why not? 76lxhatch's Avatar
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    Lack of preload can cause issues with the plunger hitting the retaining clip, and those wire ones are not as solid as the circlip style so once that's let go who knows what can happen. That's only speculation without checking geometry of course.

  8. #23
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    Certainly showing an unhappy valvetrain condition.

  9. #24
    Do you ever leave? v8bulldogs's Avatar
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    It has those 2mm wall thickness manly pushrods that were ordered to length after patterning with an adjustable rod. Pattern on valve tip looks ok small line across centre. Cant see any binding going on and lifters can be plucked out with 1 finger.

    Im thinking the preload must of loosened by either a lack of oil or some other reason. Cant remember if i set preload with the dial indicator or if i just gave it a 1/2-3/4 turn. I got hp pete to machine the valve spring perches to allow for big cam/springs when we done the porting years ago and we shimmed up to set these current springs so theres room there if i need it. its got adjustable roller rockers so maybe just need a new cam and lifters

    The engine is low comp and cranks at 120psi. But now the turbos off a new cam would be nice. Think they are 22cc dish

  10. #25
    Do you ever leave? v8bulldogs's Avatar
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    The left pushrod in pic is not rubbing its a reflection. These heads have been pushrod tube sleeved through heads and the rods run with minimal clearance through there but not dragging that i can see.

  11. #26
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    Will get sump off today and see what the pickups like

  12. #27
    Do you ever leave? v8bulldogs's Avatar
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    Theres not much to stop that top plunger from fliping over if the bottom plunger gets stuck down. It doesnt look long enough on the bearing surface to hold it true from rocking around. What causes the bottom plunger to stick down in spring bind position letting it all lose preload against pushrod? Worn out oil? Or is it a bad design lifter... hmmm

  13. #28
    Do you ever leave? v8bulldogs's Avatar
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    Yep, quiet a few getting stuck in down position on plunger. They have 0.200 thou travel on plunger so if that gets stuck down theres quiet a bit of flapping around going on and i can see that cap fliping over pretty easy with not enough preload as they are pretty sloppy in the bore and can slide side to side. Im calling dirty oil and perhaps not enough preload for this type of lifter along with maybe too much rpm while plungers stuck down.

    Solids here we come.

  14. #29
    Do you ever leave? v8bulldogs's Avatar
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    Cam out, Ran verniers over it and I can see why we lost preload on lifters..... yep theres 8 lobes rubbed away, couple are 0.200 shorter lift and quiet rounded. Might need to rethink the oil ive been putting in it. Was running shell helix 20-50 red bottles from supercheap.

  15. #30
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    No wonder shes been a bit gutless lately
    Last edited by v8bulldogs; 15-01-2019 at 04:12 PM.

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