New Noise
Moderators: Cal_Gary, T. Highway, Monkey Man, robi
Re: New Noise
How about the clutch area? Try depressing the clutch pedal slightly while running to see if that makes a difference.
John
M37B1-Oct 19,1958
MVPA 17461
M37B1-Oct 19,1958
MVPA 17461
Re: New Noise
There was a lot of competing or background noise in the video. Is it possible to separate out or filter the sound?
Could be a worn camshaft, oil pump issue, valve lifter, distributor, generator or water pump bearing, etc, but go simple first.
What about the belts? Are they in good shape?
Could be a worn camshaft, oil pump issue, valve lifter, distributor, generator or water pump bearing, etc, but go simple first.
What about the belts? Are they in good shape?
John
M37B1-Oct 19,1958
MVPA 17461
M37B1-Oct 19,1958
MVPA 17461
Re: New Noise
Pull the belt and see if it goes away. Quick and eliminates a bunch of items.
Re: New Noise
Excellent suggestion!
To me it almost sounds like high pressure air leak. Time for a quick compression test
1952 M37 - Mods = Locking hubs, battery switch, 2 bank charger, PB, PS, Pertronix SSI, Elect fuel pump w/filter&pressure switch.
Planned: Seatbelts, Bimini top
Planned: Seatbelts, Bimini top
Re: New Noise
Go get one of those cheap auto stethoscopes and simply touch each component. When you hit the right one you will know it!
Re: New Noise
Excellent suggestion, Murf.
Now, I'm off to play doctor with my truck.
Now, I'm off to play doctor with my truck.
John
M37B1-Oct 19,1958
MVPA 17461
M37B1-Oct 19,1958
MVPA 17461
Re: New Noise
Same noise with the belt off, and after torquing the manifold (several nuts were loose).
M37
YEAR: 1954
YEAR: 1954
Re: New Noise
Any luck finding the issue?
1952 M37 - Mods = Locking hubs, battery switch, 2 bank charger, PB, PS, Pertronix SSI, Elect fuel pump w/filter&pressure switch.
Planned: Seatbelts, Bimini top
Planned: Seatbelts, Bimini top
Re: New Noise
Yep on the stethoscope.
Many years ago at the Yuma Proving Ground DRMO, a very pretty M37 was sold with a description "engine rod knock".
A friend bought it, and it turned out the generator bracket was cracked, causing what really did sound like a rod ready to come out.
PoW
Many years ago at the Yuma Proving Ground DRMO, a very pretty M37 was sold with a description "engine rod knock".
A friend bought it, and it turned out the generator bracket was cracked, causing what really did sound like a rod ready to come out.
PoW