Plymouth Valiant V-100 1965 Service – Technical Manual page 262

ENGINLDIAGNOSIS 9-5
Condition Possible Cause Correction
NOISY VALVES
CONNECTING ROD
NOISE
MAIN BEARING NOISE
(e) Excessive play in distributor shaft.
(f) Faulty coil or condenser.
(9) Incorrect ignition timing.
(h) Dirty jets in carburetor.
(i) Dirt or water in fuel line, carburetor or filter.
(e) Remove and repair distributor.*
(f)
Test and replace
if
necessary.*
(9) Refer to "Ignition Timing."*
(h)
Clean jets.**
(i) Clean lines, carburetor and replace filter.**
(a) High or low oil level in crankcase.
(b) Thin or diluted oil.
(c) Low oil pressure.
(d)
Dirt in tappets.
(e) Bent push rods.
(f) Worn rocker arms.
(9) Worn tappets.
(h) Worn valve guides.
(i) Excessive run-out of valve seats or valve faces.
(a) Insufficient oil supply.
(b) Low oil pressure.
(c) Thin or diluted oil.
(d)
Excessive bearing clearance.
(e) Connecting rod journals out-of-round.
(f) Misaligned connecting rods.
(a) Insufficient oil supply.
(b) Low oil pressure.
(c) Thin or diluted oil.
(d) Excessive bearing clearance.
(e) Excessive end play.
(f)
Crankshaft iournal out-of-round or worn.
(9) Loose flywheel or torque converter.
OIL PUMPING
AT RINGS (a) Worn, scuffed, or broken rings.
(b) Carbon in oil ring slots.
(c) Rings fitted too tight in grooves.
OIL
PRESSURE DROP (a) Low oil level.
(b)
Faulty oil pressure sending unit.
(c) Clogged oil filter.
(d)
Worn parts in oil pump.
(e) Thin or diluted oil.
(f) Excessive bearing clearance.
(9)
Oil
pump relief valve stuck.
(h)
Oil pump suction tube loose, bent or cracked.
(a) Check for correct oil level.***
(b)
Change oil.***
(c) Check engine oil level.***
(d)
Clean tappets.***
Install new push rods.***
Inspect oil supply to rockers.***
Install new tappets.***
Ream and install new valves with
O/S
stems.***
Grind valve seats and valves.***
Check engine oil level. Inspect oil pump relief
valve, damper and spring.***
(b)
Check engine oil level.***
(c) Change oil to correct viscosity.
(d)
Measure bearings for correct clearances or
(e) Remove crankshaft and regrind journals.***
(f) Replace bent connecting rods.***
failures.*
**
(a) Check engine oil level. Inspect oil pump relief
valve, damper and spring.***
(b)
Check engine oil level.***
(c) Change oil to correct viscosity.
(d)
Measure bearings for correct clearances or
(e) Check No.
3
main bearing for wear on
(f)
Remove crankshaft and regrind journals.
(9) Tighten to correct torque.
failures.***
flanges.***
(a) Hone cylinder bores and install new rings.***
(b) Install new rings.***
(c) Remove the rings. Check grooves.
If
groove is
(a) Check engine oil level.
(b)
Install new sending unit.
(c) Install new oil filter.
(d)
Replace worn parts or pump.
(e) Change oil to correct viscosity.
(f)
Measure bearings for correct clearance.***
(9) Remove valve and inspect, clean, and reinstall.
(h)
Remove oil pan and install new tube
if
neces-
not proper width, replace piston.***
sary.
*Refer to the "Electrical and Instruments" Group
8
for service procedures.
**Refer to the "Fuel System'' Group
14
for service procedures.
***Refer to the "Engine" Group 9 for service procedures.