Relocating oil pressure switch

[aeromech]

What about VDO 360-006? Dual pole 7 psi. M10 x 1. I have one I’m getting ready to install on a T4. Using an Empi stainless brake hose to relocate.
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[furgo]

[aeromech]

Here's a few pics of what I've done

Here's one before I figured using the stainless hose. Still a left rear bus brake hose

I drill the tin and install a nutsert for the clamp
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound

[furgo]

Excellent, thanks. Nice detail with the nutsert for the FI version.
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'79 Westy, P22 interior, FI 2.0 l Federal, GE engine (hydraulic lifters)

Decode your M-Plate

[BUSBOSS]

Is the 42DD relocation kit no longer available? I emailed them and waiting a response but thought I would check with you guys in the meantime.
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All the redemption I can offer, girl, is beneath this dirty hood
1976 Westfalia
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[SGKent]

I think all those are gone, and the Eaton hose is taper thread. Probably time we deal with this as a group.

Can someone verify what the thread size is on a stock sender, taper or non-taper, and what the thread size is on the VDO sender. I am sure we can have a dozen made up at a hydraulic shop that will last the life of the engine. There are plenty of people here who ask about this. I am not comfortable using brake, or grease gun lines. My Eaton hose is an American taper fit so it ruins the factory threads although it seals.

Example of what might be a fitting on the engine side - I don't know if this is the thread or not. McMaster-Carr probably has them too. https://www.fittings.space/hsm21-008-m10x10m
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[RWK]

Since many drill and tap oil galleys, could you not use one as a port ? it would be 1/8-1/4 npt. with plenty of fittings avail. obviously not easy on built/ installed engines. Also a common engine fail safe thing is to install a relay on oil pressure circuit to switch off fuel pump/coil, when pressure goes to 0, is this not an option? Isn't this common on competition engines?
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[RalphWiggam]

Here is what I did:

It has changed slightly since that picture, but you get the idea.

[raygreenwood]

[Wildthings]

[SGKent]

the type 4 is the only one with issues because the sender will fit into a T1 without an extension. I ran 500,000 miles with them on a T1. If the T4 is a 1/8 taper then the Eaton 81430-16 hose will work. That is the one that VDO used in their kits. I am using one on my bus and it threaded fine but I thought Mark said the T4 was M10. I don't have a sender that is easy to find to see what it is.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[Wildthings]

[busdaddy]

Both M10 and 1/8" NPT share the same diameter and pitch, it's the angle of the V's on the threads that differs slightly, either will thread into the other but the hole is slightly deformed in the process. You can get away with it once, and maybe even switch back once, but repeated swapping may leak. M10 taper is also known as 1/8" BPT, it's found on many early Japanese cars as well as British things.

I'm fairly sure both type 1 and type 4 use the taper thread, the straight threads with the sealing ring is found on later replacement senders that interchange with some watercooled application. The boss the oil switch goes in on a type 1 isn't faced for the sealing ring, the location on the type 4 is smoother, but still not really meant for sealing from what I've seen.

1/8" grease gun hose is a viable alternative IMO, a braided brake hose from a European or Japanese application may be even better.
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[Wildthings]

[BUSBOSS]

[BUSBOSS]

[Randy in Maine]

A metric brake hose is what most people use as it is the correct 10mmx1.0mm thread pitch. A drop of locktie blue if needed.

I want to say that it is the right front flex hose from a 78 bus, but I can't recall right now. Somebody will be along in a minute to give you the correct hose location.

[hometurbine]

I have type 4 2L and I want to replace the solid stem the PO had to the flexible stainless line as shown above by BUSBOSS, but I don't need the T connctor (will thread sender directly into it). So my understanding is the case side would be a straight male M10x1 and the sender side would be the M10X1 female tapered (I have the double pole VDO sender).

1) So this should work, right? Earl's 63080913ERL
https://www.summitracing.com/parts/ear-63080913erl

2) Sounds like a metal gasket at the case would not work great so then loctite blue or aviation seal maker or something like that?

Thanks
Bill
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Bill
'75 Westy Bus with Subaru EJ25 engine
GE CT58-100 helicopter gas turbine
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[SGKent]

I have a used GD case that had the Eaton hose that came in the VDO kit screwed in. I have a new T4 case that has never had any sender installed. Clearly the appearance is different between the two threaded sender openings. I can't give a clear answer, and from all the different comments in this thread no one else has been able to either. I do have a pitch gauge and soon will need to determine the best solution. On the GD motor I was using a VDO kit designed for air cooled VW engines. The Eaton hose number came from that kit. But it appears to have deformed the GD sender opening.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[Wildthings]