about ready to hit somthing, oil temp gauge still screwey

[PSYKO PHOENIX]

I'm so incerdably sorry to be posting again on this but

I've just finishd pulling my hair out. As most of u know ive been having some issues with my oil temp gauge playing up so tonight I put in a brand new oil temp gauge and sender and its still doing it, not as much as the last gauge but Its still happening any ideas what could be causing it, any idea at all, I need to get this sorted

Again sorry

[PanthaVS]

I assume the gauge is an electrical one with a sendor unit that you mount where the oil pressure switch is?

Can you explain exactly what is going wrong? is the gauge chasing up and down? or perhaps not reading, then all of a sudden reading high? etc etc...

Also, can you explain exaclty how youve set it up? what youve plugged where? etc.

[PSYKO PHOENIX]

it jumps up when I use the head lights, or high beams or breaklights it bounces with heavy bass or indicators, the old gauge did al that but on a huge scale it also got worse the longer I drove the car, at the mo the ground is connected to the speaker ground point as well as the other 2 gauges, power running from the number 9 fuse under the dash were as the others come from the cig lighter (that's were the oil temp gauge was running from but to see if that was the problem I ran it from the number 9 fuse wire) and other than that the other wire goes to the sender the other gauge had a dimmer but this one new one dosent

Any other info needed please let me know

[dons vs]

ah could just be your earthing point mate, earth the gauge out somewhere stand alone by its self. specially not on the speakers hahaha.

also put the temp sensor in the sump not on the oil pressure switch, as that's a pressurized port for oil and has also just gone through the oil pumps so will be even hotter.
take your temp readings from the sump.

[TrikkBen]

It sounds like a wiring problem, i've seen tachs and other guages do this with flat batterys and bad earth.

Hope you sort it out

Ben

[PanthaVS]

ah could just be your earthing point mate, earth the gauge out somewhere stand alone by its self. specially not on the speakers hahaha.

agreed.... Speaker wires, even though they have a positive and negative, are not a true earth on the negative... if you follow that wire back, you'll find the "negative" wire of the speaker goes through the stereo... you need to earth the gauge DIRECTLY to earth.

When i earthed my gauges, i put a ring terminal on the wire and earthed it where i mounted the gauge to the body.

also put the temp sensor in the sump not on the oil pressure switch, as that's a pressurized port for oil and has also just gone through the oil pumps so will be even hotter.
take your temp readings from the sump.

another good point here to... i didnt think of that... the only thing here... you'll have to drill and tap into the sump. BE CAREFULL that you do this in a place where it wont foul with anything you can drive over... for example... a large tree branch... last thing you want is the sendor to tear out and spew your oil all over the road...

[PSYKO PHOENIX]

Ill definatly gave a go at that, at the mo the sender is in a sandwitch adapter inbetween the block and a remote oil filter mount along with an aftermarket pressure sender I'll have a look at the sump idea, maybe in the sump plug? Should I earth all gauges in the same place?

[immortality]

also put the temp sensor in the sump not on the oil pressure switch, as that's a pressurized port for oil and has also just gone through the oil pumps so will be even hotter.
take your temp readings from the sump.

true, do you know by howmuch it elevates the temps. i've mounted my temp sender in the remote mounted oil filter. i realise that the oil is probably a little warmer then the oil in the sump but i'm interested to know by how much.

PSYKO, change the earth point

[PSYKO PHOENIX]

will do bro, once I get this sorted I'll let u no what my temps are (at the block) cuz I'd bet theres a diferance between the block and filter relocater

[dons vs]

Ill definatly gave a go at that, at the mo the sender is in a sandwitch adapter inbetween the block and a remote oil filter mount along with an aftermarket pressure sender I'll have a look at the sump idea, maybe in the sump plug? Should I earth all gauges in the same place?

should be ok and probable not worth the effort if there is no where to mount the gauge in the sump, as im guessing these sump pans are just pressed steel? which means you will have trouble tapping a thread into it and you dont want to rely on a dodgy screw in.
another option is to seal up a nut sert into the sump or get a nut welded onto the sump and then drill it out so you can screw the sender into the nut.
either way you will need to pull the sump off to do it as there will be metal all over the joint hahaha.
so like i said probable not worth the effort really.
and yeah thats fine to have all the gauges to the onme earth, as long as its a good isolated earth.
if you still have troubles with the gauges bouncing then try an earthing filter, there only 10--15 bucks from most stereo joints and it just goes in line like a fuse but can filter out any feedback from the chassis.

true, do you know by howmuch it elevates the temps. i've mounted my temp sender in the remote mounted oil filter. i realise that the oil is probably a little warmer then the oil in the sump but i'm interested to know by how much.

PSYKO, change the earth point

not sure mate could be few degrees could be 10-20 never really done the test to see my self just the theory is there thats all.
we normally always fit the temp gauges into the sump, but occasionally customer will supply a shitty screw on remote mount and it has ports for gauge in there.

[PSYKO PHOENIX]

would repco sell them or is it only stereo places? dick smith etc?

never herd of them before, i figure if im gunna re wire the ground i might aswell do it with all the bells and wistles!!

[TUF UTE]

its wiring dude.... you prob have a shitty earth combined with too much current being drawn off the same power source, i put a led oil press gauge in my car at work and was unimpressed at how slow it reacted, once i sold the stereo out of it it responded instantaneously

[dons vs]

you should be able to buy at a few places like autobarn dick smiths even on the net? ill have a look for you

[dons vs]

RADIOSHACK NOISE FILTER REDUCE INTERFERENCE CAR STEREO - eBay Other, Electronic Components, Electrical Test Equipment, Business Industrial. (end time 14-Jun-09 09:37:25 AEST)
thats something like i ment but its not quite an earth filter but it does do the same thing

[dons vs]

RADIOSHACK NOISE FILTER REDUCE INTERFERENCE CAR STEREO - eBay Other, Electronic Components, Electrical Test Equipment, Business Industrial. (end time 14-Jun-09 09:37:25 AEST)
thats something like i ment but its not quite an earth filter but it does do the same thing

[immortality]

not sure mate could be few degrees could be 10-20 never really done the test to see my self just the theory is there thats all.
we normally always fit the temp gauges into the sump, but occasionally customer will supply a shitty screw on remote mount and it has ports for gauge in there.

check my ride for pics of my mounting. VN-VR have sheet steel sumps, VS onwards have cast alloy sumps. once my oil gets upto temp it sits on about 210degrees F. i run a 180degree thermostat with bolt on mods only and tune. i've noticed that once the oil is upto temp, coolant temps can rise and fall (when in traffic) but the oil temps actually stay fairly constant. here in NZ air temps are a bit lower so i guess running temps will be a bit lower also

[PSYKO PHOENIX]

wicked, ill look at getting one of those babys.

any body got any ideas on a good earth point? at the mo mine is on the metal rack thing of the center upright conson, the bit were the stereo etc go

obvoiusly i want to move it completly from here so where should i put it?

[PSYKO PHOENIX]

ust had an idea what about wiring the ground to the neg termanel on the bat? Would that isolate it enough? Would it drain the bat?

[dons vs]

yes will isolate fine, no wont drain the battery but last of all man haha dont bother going that far.
all you need to do is pick up a clean bolt on the chassis some where.
where abouts are the gauges mounted?

[PSYKO PHOENIX]

the gauges are mounted in the center upright, just above the stereo, i did what immortality suggested last night and cleaned all the earth points i could find and that made a huge differance!! on the weekend ill pull out tthe consol and clean and re ground the gauges and hopfully that will kill the last little bit of movement in the needle, i feel like a total dork for not trying this sooner!

i bought from repco a gold termanal (negative) and a brand new 4gauge earth wire with brass connecters, aswell as re doing the other wire to the terminal with a gold ring connecter, i also cleaned the earth point on the chasis and its made a huge differance, hopfull bu sat afternoon ill have them all sorted!! and if theres still an issue with the gauge moving ill just run it to the bat but as you said thats a last resort

[immortality]

the gauges are mounted in the center upright, just above the stereo, i did what immortality suggested last night and cleaned all the earth points i could find and that made a huge differance!! on the weekend ill pull out tthe consol and clean and re ground the gauges and hopfully that will kill the last little bit of movement in the needle, i feel like a total dork for not trying this sooner!

i bought from repco a gold termanal (negative) and a brand new 4gauge earth wire with brass connecters, aswell as re doing the other wire to the terminal with a gold ring connecter, i also cleaned the earth point on the chasis and its made a huge differance, hopfull bu sat afternoon ill have them all sorted!! and if theres still an issue with the gauge moving ill just run it to the bat but as you said thats a last resort

good stuff.

how long does it take you to get from rotorua (say, the luge) to manukau/auckland

[PSYKO PHOENIX]

depends on the traffic and driving style but i can do it between 2hours and 2 and a half

3hours to do it leisurly lol

so yea id say 2and a half hours

whys that mate?

[immortality]

did it in 2 with plenty of traffic. wonder how long it would take me to get to wellington?

[PSYKO PHOENIX]

hahahaha well its brob 7and a half but i could do it in 6, so id say u could do it in 6and a half lol

did you just drive down or somthing?

[PSYKO PHOENIX]

if you do it at night you can get to auckland under 2hours, 145 isnt hard