Oil Pressure Sender
Oil Pressure Sender
Hi guys - hope you are all keeping safe and well.
As you know I am using the Green Machine for "essential journeys", mainly the weekly food shop. This morning I turned the key and before I had even cranked the engine on the starter, the oil pressure was reading 30 psi
Once the engine was running the pressure increased to a very healthy 110 psi
Since I replaced the oil seal on the distributor shaft there has been no oil leaks on the top of the engine and I think some localised corrosion might be setting in. That said, this isn't the first time this sender has done this too me, so I think it might be on the way out.
I was going to order a new one, but VDO sell both NPT and metric threaded senders. I am pretty sure that the Alfasud sender is metric M10 x 1, but before I shell out could someone kindly confirm this for me?
Thanks everyone!
Lauren
As you know I am using the Green Machine for "essential journeys", mainly the weekly food shop. This morning I turned the key and before I had even cranked the engine on the starter, the oil pressure was reading 30 psi
Once the engine was running the pressure increased to a very healthy 110 psi
Since I replaced the oil seal on the distributor shaft there has been no oil leaks on the top of the engine and I think some localised corrosion might be setting in. That said, this isn't the first time this sender has done this too me, so I think it might be on the way out.
I was going to order a new one, but VDO sell both NPT and metric threaded senders. I am pretty sure that the Alfasud sender is metric M10 x 1, but before I shell out could someone kindly confirm this for me?
Thanks everyone!
Lauren
Re: Oil Pressure Sender
Sud shop have them.
Not the cheapest, but read his description.
Not the cheapest, but read his description.
Re: Oil Pressure Sender
Thanks for the quick reply Dave, much appreciated. I've certainly seen higher prices for the same product elsewhere. Not a whole lot of technical description (well none actually), but at least I know it isn't Chinese!
Re: Oil Pressure Sender
may have one in the shed Lauren, come to think of it I don't think I actually have....
Giulietta JTD 170
Lancia Delta integrale
Lancia Flavia coupe 1.8 1963
Lancia Dedra turbo
Renault Clio 197 RS
I'm bad with people things
But I should have tried more
Lancia Delta integrale
Lancia Flavia coupe 1.8 1963
Lancia Dedra turbo
Renault Clio 197 RS
I'm bad with people things
But I should have tried more
Re: Oil Pressure Sender
M14x1.5 Lauren, found a T piece I had on the 16V Sud
Giulietta JTD 170
Lancia Delta integrale
Lancia Flavia coupe 1.8 1963
Lancia Dedra turbo
Renault Clio 197 RS
I'm bad with people things
But I should have tried more
Lancia Delta integrale
Lancia Flavia coupe 1.8 1963
Lancia Dedra turbo
Renault Clio 197 RS
I'm bad with people things
But I should have tried more
Re: Oil Pressure Sender
I also have my patented tool for removing the sender without the hassle of access, there's no room to swing a 22mm spanner with the alternator and carb linkages.
This little homemade tool solves it all.
Available for hire
This little homemade tool solves it all.
Available for hire
Giulietta JTD 170
Lancia Delta integrale
Lancia Flavia coupe 1.8 1963
Lancia Dedra turbo
Renault Clio 197 RS
I'm bad with people things
But I should have tried more
Lancia Delta integrale
Lancia Flavia coupe 1.8 1963
Lancia Dedra turbo
Renault Clio 197 RS
I'm bad with people things
But I should have tried more
Re: Oil Pressure Sender
Not Chinese, and is accurate.
What else would you want to know!
What else would you want to know!
Re: Oil Pressure Sender
Cheers guys - rather than take a chance with ebay I have ordered one from Sudshop. I might as well treat myself to a new one, the original is 40 years old!
Lauren
Lauren
Re: Oil Pressure Sender
TBH I've seen original Alfa NOS ones at 3x the price of those, so all things considered it seems a decent price for a good quality part
Giulietta JTD 170
Lancia Delta integrale
Lancia Flavia coupe 1.8 1963
Lancia Dedra turbo
Renault Clio 197 RS
I'm bad with people things
But I should have tried more
Lancia Delta integrale
Lancia Flavia coupe 1.8 1963
Lancia Dedra turbo
Renault Clio 197 RS
I'm bad with people things
But I should have tried more
-
- Posts: 230
- Joined: Mon Feb 17, 2014 3:59 pm
- Location: Stockport
Re: Oil Pressure Sender
Hello Lauren
A few months back I bought a Kerr Nelson SOP141 off Ebay for around £8
I can't see the link on Ebay anymore but it may be worth searching elsewhere.
It is the correct thread and pressure range.
You just need to add a separate earth lead as it doesn't earth through the body.
A few months back I bought a Kerr Nelson SOP141 off Ebay for around £8
I can't see the link on Ebay anymore but it may be worth searching elsewhere.
It is the correct thread and pressure range.
You just need to add a separate earth lead as it doesn't earth through the body.
-
- Posts: 230
- Joined: Mon Feb 17, 2014 3:59 pm
- Location: Stockport
Re: Oil Pressure Sender
That's the one!
Re: Oil Pressure Sender
I bought that one too. Works a treat.
Si puo diventare Alfista
Si puo anche nascere come Alfista
Ma si muore sempre come Alfista
Si puo anche nascere come Alfista
Ma si muore sempre come Alfista
Re: Oil Pressure Sender
Thanks guys - well, slightly embarrassingly, I have discovered the hard way that senders in the US of A work on a descending resistance with increasing pressure curve, the exact opposite of our European counterparts. Annoyingly there isn't any apparent way of differentiating between them - same part numbers etc. VDO's own application note reads "0 psi = 10 ohms, or 240 ohms"
Putting a European sender on my US manufactured oil pressure gauge results in the gauge reading backwards. So I have had to order another sender from the US which will be here in 4-6 weeks.
At least I can console myself that Lamborghini would have had the same problem with the early Countach, which used American made Stewart-Warner instruments...
Lauren
Putting a European sender on my US manufactured oil pressure gauge results in the gauge reading backwards. So I have had to order another sender from the US which will be here in 4-6 weeks.
At least I can console myself that Lamborghini would have had the same problem with the early Countach, which used American made Stewart-Warner instruments...
Lauren