Re: Big Block Oil pump trouble shooting
[Re: scrag]
#563425
12/26/09 10:12 PM
12/26/09 10:12 PM
|
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
|
All of a sudden the light came on & lifters started ticking?. I'd pull the dist/inter shaft & spin the pump (ccw) w a drill/5/16" hex shaft like when you are preoiling & see what happens.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: Big Block Oil pump trouble shooting
[Re: scrag]
#563429
12/26/09 11:11 PM
12/26/09 11:11 PM
|
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
|
master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
|
Quote:
I had accelerated from a light - maybe cracked the throttle some but nothing hard ran the RPM's up a bit and when I shifted into second noticed the light come on. I got the car over to place where I could stop it and noticed an increase in vlalve train noise - oil level is fine. My guess was either the pump (spring) or shaft. I will pull the distributor in a bit and see try to spin the pump with a drill.
If it is the pump - I can get a seal power replacement pump locally - stock pump. If I want to use a melling or go with a "High Preasure or High Volume" it will have to come off island.
Either way is fine as long as it is the right way.
Thanks again.
I would do what you plan first, pull the distributor and use a priming rod. See what happens. Next, pull the valvecovers and check for a broken lifter or rocker gear. The "increase valvetrain noise " and oil pressure loss all at the same time usually indicates a lifter broke or popped out as already suggested.
I'd also pull the oil filter and have it cut open to check for debris. ( if you dont find the problem with the distributor out.)
If none of the above, could be broken pick up, sheared shaft, broken tip, stuck relief etc.
Standard oil pump is more than adequate.
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
|
|
|
Re: Big Block Oil pump trouble shooting
[Re: scrag]
#563431
12/27/09 12:10 AM
12/27/09 12:10 AM
|
Joined: Jan 2003
Posts: 2,004
s. e. pa.
calrobb2000
top fuel
|
top fuel
Joined: Jan 2003
Posts: 2,004
s. e. pa.
|
hi check your oil pump relief valve , a piece of something may have caused it to stick open ? also look inside the pump by disassembling it ! good luck 
|
|
|
Re: Big Block Oil pump trouble shooting
[Re: calrobb2000]
#563434
12/27/09 07:56 AM
12/27/09 07:56 AM
|
Joined: Jan 2007
Posts: 401
Norway
General 68
mopar
|
mopar
Joined: Jan 2007
Posts: 401
Norway
|
Quote:
hi
check your oil pump relief valve , a piece of something may have caused it to stick open ?
also look inside the pump by disassembling it !
good luck
I once ran into the same problem. Stranded on the road side. Pulled intake, distrebutor, pump driveshaft etc. Could not find anything wrong. Then pulled the pump and found that the relief valve was not moving smooth so I R&R'd it till it moved freely, packed the pump with grease and started the engine. Got oil pressure and drove 100 miles home without any issues! Check the pump. It is worth a shot!
|
|
|
|
|
w Stumpy. Holler when you find what it is.
