454 oil pump noise

M

MADMAX

Member
I've got a bone stock 1987 tbi 454 that I put a new oil pump and timing chain in last spring. Melling part #10778 that I left the high pressure spring in by accident so I run about 60 psi cold. Once the engine is up to temp, I get a rattle-chirp-grinding noise only at 1200 rpm. Only makes it at that rpm! My son and I have stethoscoped it a ton. I originally thought it was the distributor so I replaced the brand new one with another new one but noise is still there. Is it possible that the drive shaft that come with that pump is too long? Engine runs great and is SUPER quiet except at 1200 rpm. 7 quart stock pan, about 3/8-7/16 between pickup and bottom of pan. I have done this same procedure to quite a few of these mid 80's chevy trucks with no problems at all, but this was the first time I used this oil pump. I dont know why I didn't go with the M-77HV that I've always used. Any help will be greatly appreciated!
 
Id check that the oil pump drive shaft length is correct ,and the oil pump pick-up is not touching some part of the oil pan,
and that the oil pump pick-up is BRAZED to the oil pump body so that the,
oil pump pick-up is not actual touching the oil pan side or floor, as it might be loose,, read these links
yes it might be something simple, like the wrong length of the oil pump drive shaft,
but I'm afraid pulling the oil pan and inspecting the pump and oil pan for indications somethings,
loose or touching at 1200rpm, and vibrating or binding that should not be, is in your future plans at some point

grumpyvette

Thread 'installing an oil pump pick-up tube'

there's two ways ,...... you can use the correct tool, which is ADVISABLE!
use this oil pump(link below) in most stock SBC builds, as it produces a 10% increase in oil volume and standard pressure which is just fine , but obviously check your bearing clearances and oil pump to oil pan floor clearances and braze the CORRECT MATCHING pick-up to the pump, and I'd also suggest if you have the room, for clearance that you look into one of the less expensive 7 quart baffled oil pans as they provide a good deal more potential protection and durability to your bearings longevity.
be very sure...

https://garage.grumpysperformance.com/index.php?threads/testing-a-chevy-oil-pump.6479/

Grumpy

Thread 'oil pump drive shaft is loose'

I put in a new Melling m-55 oil pump with amoroso steel collar shaft #22070 in my 350 crate motor. With the distributor installed and fully seated, the shaft can move up and down 1/4 of an inch and this shaft doesn’t snap on to the pump as it does with the plastic sleeve.Is this normal? Thanks in advance
Click to expand...
mor-22070_xl.jpg

chevy oil pump drive shafts are available in several lengths, because various brands of oil pumps vary considerably in the length required.
you can also install a BBC oil pump on a SBC engine, in some...

Grumpy

Thread 'oil pump mods & related info'







big block chevy oil pumps - JEGS High Performance

1 million+ parts, 800+ brands-all in-stock at guaranteed best prices. Buy by 11pm & your order ships same-day. Trust JEGS to get it right. Shop now!
www.jegs.com www.jegs.com

www.chevyhardcore.com

Oil Pump Selection: Is High Pressure Or High Volume Better?

Many feel a high-volume oil pump is a necessity for a high-performance engine. Find out what our professional sources have to say about that.
www.chevyhardcore.com www.chevyhardcore.com

Rule of thumb is you want a minimum of 12/15 psi oil pressure per 1000 rpm on a healthy Chev...


N

Thread 'Wrong pickup tube! Can I swap parts on an oil pump?'

Ive got a new oil pump and pickup tube. The time has come to install them and of course the pickup tube is for a 3/4" inlet and my pump has a 5/8". I need to get this motor assembled and into the truck. Nobody sells pickup tubes around here.

Can I just swap the old lower housing with the pickup tube already installed? Should I reuse the old pump? What exactly is the wear items on a pump? Doesn't seem like there is much to go wrong in there. Should I swap out the pressure springs and call it good?
 
if there is a (noise) at 1200 rpm there is a good chance that somethings got the wrong clearances or its oil pump drive shaft is binding or the oil pump pick-up has vibrated against some part of the oil pan, read these links but it looks like pulling the oil pan for a close inspections in your future plans at some point

 
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Thanks Grumpy for all of the help. I replaced pump with Melling M77hv and corresponding shaft and the noise is gone! I do have another question though. The engine is basically a stock 1987 TBI 454 that has been rebuilt but I know nothing more than this as it was in the truck when I bought it. I pulled the engine and did my normal stuff which is a timing chain and oil pump and a good cleaning and reseal. I used the stock oil filter adapter that has the provisions for an engine oil cooler. I used an aftermarket cooler with 8an lines both ways. This engine has about 58 psi oil pressure when cold and about 54-55 psi hot. both pumps were the same! I'm running 15/40 oil also along with the lower micron PF35L filter. Is this ok or am I missing something or did I do something possibly wrong?
 
15/40 oil is in my opinion a bit too thick for best lubrication at most ID suggest a good 10w40,synthetic
and personally I would most likely make it a 50%/50% mix of 10w30 and 10w40 and change the filter and oil at no more than 5500-6000 miles
your use of an oil cooler may be a big help, but having a oil temperature gauge is a good idea in an ideal world,
I frequently see guys install oil coolers and a few never install oil temperature gauges
obviously if the cooler is too small it helps ,but if its too large in may never allow oil to reach temps to burn off moisture trapped in the oil.
oil temps stay in about the 210f-230f range most of the time. if you have the clearance use the longer oil filter versions or install dual oil filters,
as having significantly more surface area in the oil filter typically reduces issues with crud build-up over time.
as long as you have 30-35b psi at idle your fine



grumpyvette

Thread 'which oil , what viscosity'

now the short answer is that almost any name brand of automotive 10w30 oil can be used in most modern auto engines,
but obviously some are going to be better quality than others,THINNER VISCOSITY'S WILL TEND TO FLOW FASTER , ESPECIALLY AT LOWER TEMPS. generally your better off using the quality synthetic oil of the manufacturers suggested viscosity
ID strongly suggest you read thru the thread carefully and take a few notes. most of the more modern oil formulas designed for modern engines with roller cams and catalytic converters have a good deal less ZINC and friction...
  • Like

grumpyvette

Thread 'oil system mods that help'

heres a short list
REMEMBER the object or goal in building and maintaining the lubrication system is too maintain a 100% dependable pressurized cooling flow of lubricant to the bearings, rockers ,valves etc. your most important tool, is your ability to think about how things are supposed to work, correctly, and your skill at maximizing the intended results that the lube system allows you to provide or modify to enhance that intended oil flow and where it goes in the running engine.
obviously use of a high quality synthetic oil that has a higher heat tolerance and...

grumpyvette

Thread 'yes the oil filter you sellect does make a differance'

READ THRU THESE SUB LINKS CAREFULLY
theres a great deal of info here to look thru. pay attention to filter construction and the filter materials and total filter medium area, when discussing oil filters keep in mind their intended function, which is mostly too efficiently trap and remove particulate and metallic debris circulating in the oil flow,from various sources like wear, and outside dirt, to prevent it from reaching the oil film supported surfaces in the bearings and valve train.

DON,T IGNORE THE LINKS THEY CONTAIN A GREAT DEAL OF INFO...

Grumpy

Post in thread 'Trans Cooler Install On Lincoln Navigator'

what does the current existing trans fluid temp returning to the trans look like,
before it reaches the trans?


42545.jpg


http://www.testequipmentdepot.com/e...1100200223789&utm_content=All Extech Products

transmission cooler info and derale trans cool pans,

OVERLY HOT TRANS FLUID TEMPERATURE QUICKLY KILLS, A TRANSMISSION, SIGNIFICANTLY REDUCING TRANSMISSION DURABILITY, AND I'D POINT OUT THAT REDUCING THE TEMPERATURE OF TRANSMISSION FLUID ENTERING A RADIATOR HELPS REDUCE HEAT LOADS ON THE RADIATOR ,WHICH TENDS TO REDUCE ENGINE OPERATIONAL TEMPS...
garage.grumpysperformance.com


and are you set up with the trans fluid routed like this ?

ARE BOTH THE FANS FUNCTIONAL AND RUNNING?

coolerdiagram.jpg

Grumpy

Post in thread 'Choosing An Engine Oil Cooler Or Transmission Fluid Cooler'

read these links
http://garage.grumpysperformance.co...fo-and-derale-trans-cool-pans.662/#post-89196

http://garage.grumpysperformance.com/index.php?threads/transmission-over-temp.12832/#post-78277

http://garage.grumpysperformance.co...ion-remote-filter-flow-rate.14621/#post-78250

http://garage.grumpysperformance.co...flow-rates-and-heat-transfer.9880/#post-64431...

grumpyvette

Thread 'oil temps and engine wear'

I was just over at a friends shop where he was working on a kids car giving him a tune up, after he finished the kid said let me try it out, and proceeded to back the car out on the street and do a 5000rpm tire smoking burn out without letting the engine come close to reaching operational temps first, as he pulled it back up the drive way I mentioned to my friend that the chances of that engine staying in one piece over the long term was about zero, look as kids we all did dumb stuff but if you insist on beating the hell out of an engine before temps stabilize and oil gets up to the...

grumpyvette

Thread 'OIL TEMP??'

hi grumpy

i get a little scared on my oil temp. engine is a 540bbc (world alum block and brodix heads, comp street solid roller). water temp is never an issue, as long as i can drive no matter if i let it scream or just cruise it stays at 180°f, if i get into stop and go traffic it can go up to 200°f but if i turn on my electric fan doesn´t move any further. i installed my autometer gauges right underneath the intake cause the world bbc block has a hole there for a sender. oil pan is a kicked out milodon. oil pressure was cold at 50psi @idle/revs and hot at 20psi idle and 45psi from...

W

Thread 'Best Location for Oil Temperature Sender'

Hello, I have a 1991 L98 that I have just rebuilt and am adding secondary Auto Meter gauges to ensure everything is running properly. I am adding a transmission temperature gauges, water temperature gauge, oil pressure gauge, and oil temperature gauge. So far I have located all in good locations with the exception of the oil temperature gauge. The oil pressure sender is in the top of the block behind the china wall.

I wanted to put the temperature sensor above the oil filter where as I understand they locate it in Corvettes. However, my factory pressure switch is located there, which I...

grumpyvette

Thread 'yes the oil filter you sellect does make a differance'

READ THRU THESE SUB LINKS CAREFULLY
theres a great deal of info here to look thru. pay attention to filter construction and the filter materials and total filter medium area, when discussing oil filters keep in mind their intended function, which is mostly too efficiently trap and remove particulate and metallic debris circulating in the oil flow,from various sources like wear, and outside dirt, to prevent it from reaching the oil film supported surfaces in the bearings and valve train.

DON,T IGNORE THE LINKS THEY CONTAIN A GREAT DEAL OF INFO...

http://garage.grumpysperformance.co...sion-and-oil-cooler-increases-durability.176/

http://garage.grumpysperformance.co...n-cooler-info-and-derale-trans-cool-pans.662/

http://garage.grumpysperformance.co...ans-cooler-on-a-c4-corvette.10514/#post-44478

http://garage.grumpysperformance.co...sion-and-oil-cooler-increases-durability.176/

http://garage.grumpysperformance.co...n-cooler-info-and-derale-trans-cool-pans.662/

http://garage.grumpysperformance.co...ans-cooler-on-a-c4-corvette.10514/#post-44478

http://garage.grumpysperformance.co...y-in-building-a-good-engine.11682/#post-54682
 
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