Oil pressure sending unit failure

Scotchman · #1 (**permalink**) 05-07-2014, 11:55 AM

My 3rd oil pressure sending unit just took a dump. They were all from factory Five, and originally came with the kit. I have the electrical gauges that also came with the kit. Is there a better sending unit I can get ?

lippy · #2 (**permalink**) 05-07-2014, 12:00 PM

You may want to check out Summit and see if they have any SW or other ones. I've never had a problem with any.

patrickt · #3 (**permalink**) 05-07-2014, 12:12 PM

Go mechanical. If I looked down and saw zero oil pressure on my gauge (while driving) I would shi* a brick. Then, after i pulled off to the side of the road, I'd have to figure out a way to check the oil pressure without starting it. The only way I know to do that is to pull the distributor and spin the pump by hand. Not being able to do that by the side of the road, I'd have to be towed home. Once would be irritating enough, but twice... no, thrice? You gotta be kidding... trash that POS and get a mechanical gauge.

FWB · #4 (**permalink**) 05-07-2014, 01:19 PM

Quote:

Originally Posted by patrickt

Go mechanical. If I looked down and saw zero oil pressure on my gauge (while driving) I would shi* a brick. Then, after i pulled off to the side of the road, I'd have to figure out a way to check the oil pressure without starting it. The only way I know to do that is to pull the distributor and spin the pump by hand. Not being able to do that by the side of the road, I'd have to be towed home. Once would be irritating enough, but twice... no, thrice? You gotta be kidding... trash that POS and get a mechanical gauge.

and the mechanical gauge does this better on the side of the road because you didn't know to turn the key to on to get the electrical sender to work?

i am just busting you..
as in all the years i've been screwing around with cars my electrical gauge has been just dandy. the 10 psi it may or may not be off means nothing with 60 psi of OP. after my first capillary tube hit my header and sprayed oil freakin everywhere i was done with mechanicals, yes they are differnt now but, why not use modern electric components.
if you start with good quality stuff it should last your lifetime

remember we are not doing le mans, these are street cars, oh and with zero OP the sound of the motor should tell you if it is correct or not.....the clatter would be deafening

patrickt · #5 (**permalink**) 05-07-2014, 01:21 PM

Quote:

Originally Posted by FWB

and the mechanical gauge does this better on the side of the road because you didn't know to turn the key to on to get the electrical sender to work?

i am just busting you..
as in all the years i've been screwing around with cars my electrical gauge has been just dandy. the 10 psi it may or may not be off means nothing with 60 psi of OP. after my first capillary tube hit my header and sprayed oil freakin everywhere i was done with mechanicals, yes they are differnt now but, why not use modern electric components.
if you start with good quality stuff it should last your lifetime

remember we are not doing le mans, these are street cars

Uhhh, just how much oil pressure do you think a car has when the key is on and it is not running?

FWB · #6 (**permalink**) 05-07-2014, 01:23 PM

Quote:

Originally Posted by patrickt

Uhhh, just how much oil pressure do you think a car has when the key is on and it is not running?

your post says you spin the oil pump by hand..........
whether its a mech or electric gauge you can see OP

FWB · #7 (**permalink**) 05-07-2014, 01:28 PM

i think if you just turned down the best of Aaba CD you would have heard the motor isn't chattering

patrickt · #8 (**permalink**) 05-07-2014, 01:42 PM

Quote:

Originally Posted by FWB

i think if you just turned down the best of Aaba CD you would have heard the motor isn't chattering

Most of us would not feel comfortable looking down at our oil pressure, seeing that it read zero, but just continuing on as if nothing had happened....

Gr8Cobra · #9 (**permalink**) 05-07-2014, 04:59 PM

Scott I am experiencing some of the same issues. On the trip to Kingman my oil pressure went from 40 to 80 more than once and back to 0. I had this happen while running around town as well. I have not changed out my sender as yet so my question is what brand is suggested to help stabilize the readings?

Scotchman · #10 (**permalink**) 05-07-2014, 05:17 PM

Gr8,
There is no info on my sending unit. It came from Factory Five, and I haven't been able to find another supplier or replacement. My pressure fluctuated from 20-50 psi, and sometimes went to zero on the Fun Run. There are 2 terminals on top of the unit where 2 wires connect. I've e-mailed FFR to find out my options. I'd like to upgrade it. It's become a pain in the A#$%@!!.

FWB · #11 (**permalink**) 05-07-2014, 06:17 PM

the gauge manufacturer and type will dictate the sender, there isn't usually a mix and match option. so what gauge is in there? autometer, smiths, stewart warner?
and the indexing, like 0 to 80 or 0 to 100, that's the info you will need to acquire the sender.

Scotchman · #12 (**permalink**) 05-07-2014, 07:53 PM

FWB,
0-100 psi with no other label on the gauge. No info on the sender part itself. Just an S and a G next to the terminals. Probably from China. If it were a Ford part wouldn't it be labeled ?

FWB · #13 (**permalink**) 05-08-2014, 09:58 AM

Quote:

Originally Posted by Scotchman

FWB,
0-100 psi with no other label on the gauge. No info on the sender part itself. Just an S and a G next to the terminals. Probably from China. If it were a Ford part wouldn't it be labeled ?

post a picture of the gauge. someone will recognize it.....

DaleG · #14 (**permalink**) 05-07-2014, 07:52 PM

Quote:

Originally Posted by Scotchman

Gr8,
There is no info on my sending unit. It came from Factory Five, and I haven't been able to find another supplier or replacement. My pressure fluctuated from 20-50 psi, and sometimes went to zero on the Fun Run. There are 2 terminals on top of the unit where 2 wires connect. I've e-mailed FFR to find out my options. I'd like to upgrade it. It's become a pain in the A#$%@!!.

Get a sender from Speedhut. Call them and tell them what kind of gauge you have; they will fix you up.

Car Nut · #15 (**permalink**) 05-08-2014, 08:52 AM

Post deleted.

Scotchman · #16 (**permalink**) 05-08-2014, 10:53 AM

Thanks Dale,
I just ordered a new sending unit from Speed Hut. $37 delivered. They had another option to upgrade the sending unit, harness, and a rebuild of my gauge with better components for only $89 plus shipping, but I would have had to rewire the whole thing. I'm going to give it one more try, and maybe next time, change it all.

HarleyD · #17 (**permalink**) 05-09-2014, 11:58 PM

If that new sending unit works, please post the part number and manufacturer please!

Scotchman · #18 (**permalink**) 05-10-2014, 05:43 PM

HarleyD,
The new sender works just fine, like all the others at first. It's the same exact part, 4th one in 6 years. Speed Hut Oil 0-100 psi pressure sender-part # G-SNDR-09. You can see a pic on their web sight under Other Products/Gauge Accessories/Senders-2nd page. There may be problem with my set up, causing the part to go bad. Sometimes you just have to be a detective to figure this s#%@ out!

mikiec · #19 (**permalink**) 05-08-2014, 09:59 AM

That must have been real bad if you deleted it.

Gr8Cobra · #20 (**permalink**) 05-08-2014, 10:36 AM

My gauges are VDO and it reads 0-80. It has a single wire for the signal. So what I am hearing is I need to use a VDO sender? I was juhst wondering if another manufacturer would work if if reads 0-80. I will check with Speed Hut to see what they recommend.