Lq4 cam swap passenger side dowel tool goes in 1/2 way
10-30-2021, 09:23 PM
#1
Lq4 cam swap passenger side dowel tool goes in 1/2 way I’m doing a Cam swap in my car.
im using 5/16 dowel rods to insert in the block after I spun the old cam around a few times.
the drivers side goes in perfect but the passenger side only goes in 1/2 way and seems like it hits a wall ?
did one lifter already drop ? Or do I need to grind a point into the cam dowel tool?
im using 5/16 dowel rods to insert in the block after I spun the old cam around a few times.
the drivers side goes in perfect but the passenger side only goes in 1/2 way and seems like it hits a wall ?
did one lifter already drop ? Or do I need to grind a point into the cam dowel tool?
10-30-2021, 09:38 PM
#2
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G Atsma (10-31-2021)
10-31-2021, 11:05 AM
#6
I tried grinding a point on to the dowel. I also tried putting the pointed dowel in while spinning cam. No dice.
what would cause this issue ? Cracked lifter tray ? Collapsed lifter ?
what would cause this issue ? Cracked lifter tray ? Collapsed lifter ?
10-31-2021, 03:39 PM
#7
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10-31-2021, 05:22 PM
#8
Definitely a bad thing; glad you found it; but not germane to whether the dowel goes in or not. Doesn't explain that observed fact.
The lifter body should still move however much, according to the lift of the cam; and once it had moved upward far enough, the dowel should have slid in.
Looks like somebody SEVERELY over-revved it at some point in its life. By the witness marks on the retainer, not terribly long ago.
What does the roller and the lobe look like?
The lifter body should still move however much, according to the lift of the cam; and once it had moved upward far enough, the dowel should have slid in.
Looks like somebody SEVERELY over-revved it at some point in its life. By the witness marks on the retainer, not terribly long ago.
What does the roller and the lobe look like?
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02*C5 (10-31-2021)
10-31-2021, 10:21 PM
#9
Definitely a bad thing; glad you found it; but not germane to whether the dowel goes in or not. Doesn't explain that observed fact.
The lifter body should still move however much, according to the lift of the cam; and once it had moved upward far enough, the dowel should have slid in.
Looks like somebody SEVERELY over-revved it at some point in its life. By the witness marks on the retainer, not terribly long ago.
What does the roller and the lobe look like?
The lifter body should still move however much, according to the lift of the cam; and once it had moved upward far enough, the dowel should have slid in.
Looks like somebody SEVERELY over-revved it at some point in its life. By the witness marks on the retainer, not terribly long ago.
What does the roller and the lobe look like?
roller looked fine. Cam looked fine
They were reused lifters from a 4.8. I was revving it to 7,000rpm