tony barnhill
Great Pumpkin - R.I.P
Offline
18V engine w/121,000 original miles - only 1 driver (me!) since day one - engine never opened but well maintained, never any problems - normal good, high oil pressure....
Running super, then wrrrrrrrrrr...lost all power & barely limped home.
Rocker had jumped off push rod...put it back on & adjusted valves & wrrrrrrrrrrr...lost power
Same rocker jumped off push rod...changed complete rocker assembly with a good, used one off shelf & changed the errant push rod....
Great power, then wrrrrrrrrrrrrrrr...no power & barely limped home.
Same rocker had jumped off push rod!
Now, I know that probably means tappet or cam problems...it could just be a tappet sticking or could be a bad cam lobe....way back when - under warranty - the dealer replaced the single chain assembly with a dual chain setup; it might be a problem but I doubt it is; there doesn't appear to be timing issues....it only happens under load; at idle everything is fine!
Tappet or cam, gotta be! DARN!!
I know what to do but I really don't want to do it!
I could pull the intake/exhaust & side cover & remove the offending tappet for examination...
Then, I could remove the radiator, distributor & front cover & timing chain (& slide the cam out for a visual inspection...
But, 120,000 miles? Is it worth it? Or should I just bite the bullet & yank the engine/transmission & do a complete rebuild?
She's back in the garage, cover is over her, oil's fine & she's now officially tucked away for the Winter; I've gotta finish the '63 Midget for the "50th..." show in Missouri before I take on anything else major.....DARN!!
Running super, then wrrrrrrrrrr...lost all power & barely limped home.
Rocker had jumped off push rod...put it back on & adjusted valves & wrrrrrrrrrrr...lost power
Same rocker jumped off push rod...changed complete rocker assembly with a good, used one off shelf & changed the errant push rod....
Great power, then wrrrrrrrrrrrrrrr...no power & barely limped home.
Same rocker had jumped off push rod!
Now, I know that probably means tappet or cam problems...it could just be a tappet sticking or could be a bad cam lobe....way back when - under warranty - the dealer replaced the single chain assembly with a dual chain setup; it might be a problem but I doubt it is; there doesn't appear to be timing issues....it only happens under load; at idle everything is fine!
Tappet or cam, gotta be! DARN!!
I know what to do but I really don't want to do it!
I could pull the intake/exhaust & side cover & remove the offending tappet for examination...
Then, I could remove the radiator, distributor & front cover & timing chain (& slide the cam out for a visual inspection...
But, 120,000 miles? Is it worth it? Or should I just bite the bullet & yank the engine/transmission & do a complete rebuild?
She's back in the garage, cover is over her, oil's fine & she's now officially tucked away for the Winter; I've gotta finish the '63 Midget for the "50th..." show in Missouri before I take on anything else major.....DARN!!