My burb normally ran at near 30 when i first started driving it. I dont know if I havent been paying attention or what, but the other day on the highway it was at 10-12. I'm guessing its the heat and older oil. but it got me to realize that I dont know what it should be. My haynes is no help either,,
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
Optimum oil pressure for sb??
- Thread starter shady
- Start date
10 psi per 1000 rpm of engine .
old oil and high heat will make psi low. also a sender going bad for the stock gauge in the dash. i had 1 leeking a bit and swaped it just for that and got almost 10psi more pressure so my sender was getting bad and leaking.
old oil and high heat will make psi low. also a sender going bad for the stock gauge in the dash. i had 1 leeking a bit and swaped it just for that and got almost 10psi more pressure so my sender was getting bad and leaking.
I need a tach for sure, but dont have one yet
I know from what the gear ratio calc. said that I should be at 1600ish doig 65. so that puts it only a little low. It may only have 5w-30 in it now too. It was used as a plow truck by the PO for a short while. I'm going to change the oil and go with 10w-40 for this summer. maybe it'll come up. Thanks for that guideline about the RPMs
I know from what the gear ratio calc. said that I should be at 1600ish doig 65. so that puts it only a little low. It may only have 5w-30 in it now too. It was used as a plow truck by the PO for a short while. I'm going to change the oil and go with 10w-40 for this summer. maybe it'll come up. Thanks for that guideline about the RPMs
tbi engines on oil cap spec 5-30 oil
and yes thicker oil will make it come up.
new sender is cheep.
and if you get a tach with tbi there is a flat spade plug single wire on the tbi coil. thats your tach signal wire. easy to hook up.
all this tbi info is if you are talking your 88 sub in your sig line.
and yes thicker oil will make it come up.
new sender is cheep.
and if you get a tach with tbi there is a flat spade plug single wire on the tbi coil. thats your tach signal wire. easy to hook up.
all this tbi info is if you are talking your 88 sub in your sig line.
Thats the one
I have a mecahical aftermarket gauge that I may hook up to check the factory one. A new sender would be a good idea in either case. I want to keep the factory gauges till I'm ready to change them all. The oil does look to be bad. Its weird, It has 2 separate colors. it has a thin clear new oil look and feel with dark brown swirls in it when I pull it off the dipstick with my fingers. It all feels like oil , but it definately needs changed. Thanks for the info on hooking up a tach also.
I have a mecahical aftermarket gauge that I may hook up to check the factory one. A new sender would be a good idea in either case. I want to keep the factory gauges till I'm ready to change them all. The oil does look to be bad. Its weird, It has 2 separate colors. it has a thin clear new oil look and feel with dark brown swirls in it when I pull it off the dipstick with my fingers. It all feels like oil , but it definately needs changed. Thanks for the info on hooking up a tach also.
if you got a good known mech then by all means install to verify pressure.
and the sender might be on the side of the block above the oil filter boss for that setup. and thats the one for the gauge. the one on the back of the block for tbi is for fuel pump/computer safty.
but sometimes the 2 are both up there on the fitting. you want the bigger tin can looking one with single wire.
and before you wrench on the sender. hold securly with somthing the brass adaptor in the block. thay break off easy when you try and remove the stock sender.
and the sender might be on the side of the block above the oil filter boss for that setup. and thats the one for the gauge. the one on the back of the block for tbi is for fuel pump/computer safty.
but sometimes the 2 are both up there on the fitting. you want the bigger tin can looking one with single wire.
and before you wrench on the sender. hold securly with somthing the brass adaptor in the block. thay break off easy when you try and remove the stock sender.
I second the mechanical gauge. My factory gauge got lower and lower and lower until one day it stopped going above 5-10psi. I swapped in a mechanical oil pressure gauge and I'm back to where it's supposed to be.
chulisohombre
1/2 ton status
if the oils thin and has different colors,somethin is not right.10w40 will run fine and bump up the pressure a lil.keep an eye on the oil to see if it does the same again.getting fuel down through the rings will thin out the oil also and crate a weird look and color to it.
