3200 Oil Pressure Sender

PeteNZ

New Member
Messages
29
I love the old Espada Peter, any pics!

Dave
HI Dave, was back on site and realised that I had never sent any pics as you requested. I now have to say, however, that I am an ex-Espada owner having sold it at Easter to an enthusiast who will keep it here in NZ. It getting harder to drive these cars the way they should be, even in our relatively uncluttered roads but there is so much more traffic on the road now (all those tourists!) and I figured I'd had my share of thrills and time to let someone else have a go and spend some money on it. I have attached a few pictures for you.
Cheers
Peter
 

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philw696

Member
Messages
25,123
HI Dave, was back on site and realised that I had never sent any pics as you requested. I now have to say, however, that I am an ex-Espada owner having sold it at Easter to an enthusiast who will keep it here in NZ. It getting harder to drive these cars the way they should be, even in our relatively uncluttered roads but there is so much more traffic on the road now (all those tourists!) and I figured I'd had my share of thrills and time to let someone else have a go and spend some money on it. I have attached a few pictures for you.
Cheers
Peter
Wow that's one nice Espada for sure Peter.
 

madmaxisback

New Member
Messages
1
Hi guys, bit of a thread dig, but does anyone know if this sender might work?
or could have some mods to work?
Shows its 0-8bar, M14 x 1.5

FAE 14030 https://www.ebay.co.uk/p/FAE-14030-Sender-Unit-Oil-Pressure/1419726675

60677

It is listed as working with:
Category
60806208
ALFA ROMEO
60809456
ALFA ROMEO
5892954
FIAT
7590191
FIAT
7590192
FIAT
7611384
FIAT
7611385
FIAT
7710576
FIAT
7759414
FIAT
7759416
FIAT

Any help with this would be great as mine has started to play up in last 12 months.
Thanks
 

Arvid

Member
Messages
158
The problem with the original Jaeger sender unit is the resistance range. The Jaeger has 0 to aprox.275-280 ohm which corresponds to the instrument in dash. If the FAE 14030 is e.g 0 to 150 or 180 ohm the instrument would read wrong. Some aftermarket senders are 0 - 300 ohm and that would work as it would only result in a 5-10% misread of pressure.

Edit : The FAE 14530 has the same internal resistance but will not fit due to larger 50-55mm diameter body. I don't think anyone has yet found a replacement for the 37mm slim Jaeger version. Your original sender is probably fixable - how-to is found earlier in the thread.
 
Last edited:

Zep

Moderator
Messages
9,110
The problem with the original Jaeger sender unit is the resistance range. The Jaeger has 0 to aprox.275-280 ohm which corresponds to the instrument in dash. If the FAE 14030 is e.g 0 to 150 or 180 ohm the instrument would read wrong. Some aftermarket senders are 0 - 300 ohm and that would work as it would only result in a 5-10% misread of pressure.

Edit : The FAE 14530 has the same internal resistance but will not fit due to larger 50-55mm diameter body. I don't think anyone has yet found a replacement for the 37mm slim Jaeger version. Your original sender is probably fixable - how-to is found earlier in the thread.

David Askew can supply an alternative part too I believe.
 

Lozzer

Member
Messages
2,280
JFI a small cut in the metal band releases the 2 parts, same conclusion as others with the bent contact, now how to reafix?

80767

80769

80768
 

Arvid

Member
Messages
158
I used super glue to tack the cap in place and two component epoxy glue to seal properly. Suppose any oil resistant silicone or glue will do the job.
 

davy83

Member
Messages
2,809
Can't believe this is the best we can do, wonder if there is another way to solve this, with better core technology. mmmm..........
 

Zep

Moderator
Messages
9,110
I looked at this a while ago, and while I am nowhere near your skills, I couldn’t find a solid state variable resistance sensor. 0-10v yes, but then how to get that to the gauge.
 

Oneball

Member
Messages
11,075
I looked at this a while ago, and while I am nowhere near your skills, I couldn’t find a solid state variable resistance sensor. 0-10v yes, but then how to get that to the gauge.

Stack and AiM do solid state ones for fuel, brake and oil. But they’re over £150 from memory that’s why I use a capillary on the race cars.
 

Zep

Moderator
Messages
9,110
Stack and AiM do solid state ones for fuel, brake and oil. But they’re over £150 from memory that’s why I use a capillary on the race cars.

Yes, I looked at those. The SS ones give 0-5 or 0-10v output which won’t work. Their resistive sensors still use the wiper on resistive wire like the original.
 

davy83

Member
Messages
2,809
Yes, I looked at those. The SS ones give 0-5 or 0-10v output which won’t work. Their resistive sensors still use the wiper on resistive wire like the original.
What we need is a low cost solid state sensor and a small circuit to make it look like this old fashioned resistive track device, not sure if this is worth the effort. I will will see fi it's possible
 

Grizzly

New Member
Messages
29
Hello Gents

I offer these as found; I know not enough to make any decision!

autometer.com/100-psi-pressure-transducer.html
dakotadigital.com/index.cfm/page/ptype=product/product_id=730/category_id=-1/mode=prod/prd730.htm

and a cross-forum link = ferrarichat.com/forum/threads/modern-oil-pressure-sensor-kit-for-3x8-mondial-etc.567312/

Hope they help
 

Arvid

Member
Messages
158
Well,here we go again. I repaired my sender unit a couple of years ago and it has held up perfectly until this week. A slight flickering on the instrument needle tells me something is about to happen. Better start looking for a replacement sender.

I tried ordering from Eurospares but it was NLA so a search for a replacement sender begins yet again. But I wonder about some things regarding the original Jaeger unit. First thing is the low pressure warning. Is that a signal from the sender or is the warning inside the instrument cluster itself ? The sender has two leads and if it’s grounded via sender unit body to engine/chassis then the two leads could be pressure reading and low pressure.
I have seen a few italian made senders I can use if I can make them fit inside the limited space but they are sold in different versions and with «normally open» and «normally closed» warning contact. One should think that a normally open contact would be useable as it indicates normal operating conditions so if pressure drops the contact closes and warns of low pressure ?

Would be great with other members input in this matter
 

Zep

Moderator
Messages
9,110
If it is anything like the 4200, that does not use the warning contact, but the dashboard illuminates the low pressure light based on the signal.

If you can see it, senders usually have markings on the case for the purpose of a connection, G is the signal and WC is for the warning contact.
 

Arvid

Member
Messages
158
Ok,so two wire connector is probably earth and signal. Low pressure warning has always been strange also. Just tips below 2.5 bar and warning lights up. Seems to be like this on other cars also so not just mine. I think it must relate to the mismatch between an 8 bar sender and a 5 bar gauge.

Sensors I have found is the correct 280-300 ohm with 14x1.5 thread. Can be had with or without warning contact. Problem is as always the diameter. Body itself is slim but the crimped edge to hold it together sticks out and will probably not fit. Can be filed down though but needs a new glue/attachment job to seal properly again.

If you lock at Fiat 46474606 - sender for Punto GT/Coupe - it is the same body and connector as our Jaeger unit. It has a black body instead of white. I’ve tried searching for the specs and resistance to see if it can be used but have not found anything. Does anyone know more about this sender ?
 

Arvid

Member
Messages
158
Fiat 46474606 for Punto/Coupe. These cars have a 3 bar max gauge so I suspect the sender is different. But how different ?
 

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davy83

Member
Messages
2,809
Fiat 46474606 for Punto/Coupe. These cars have a 3 bar max gauge so I suspect the sender is different. But how different ?
you would have to do a back to back pressure and signal output test to see if they are similar enough. Also need to worry about temperature rating as the 3200 under bonnet is toasty.