Re: Heads up on oil pressure sender cross parts reference
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Re: Heads up on oil pressure sender cross parts reference



*IF* the hole in my block is original, the thread pattern is 1/8" BSPT
(British), not 1/8" NPT (American). They look deceptively similar, but
BSPT is 28 TPI while NPT is 27. Adapters are available between the two
systems, and between different pipe sizes:

http://www.mcmaster.com/asp/DisplCtlgPage.asp?ReqTyp=CATALOG&CtlgPgNbr=21

The other thing you need to watch for is calibration. Most dometic oil
pressure senders are calibrated to drive 100 PSI gauges, not 80 PSI.

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "supermattthehero" <supermatty@xxxx>
wrote:
> I had a fun experience this week trying to find an oil pressure 
> sender replacement locally. On the cross-parts reference, a Volvo 
> part is listed. So I called a Volvo dealership and asked them to 
> send me the part, well, they said it was replaced with a newer part 
> and could overnight it to me for free, so I purchased it for about 
> $30. It wasn't even close. Wrong size threads, and had a spring 
> loaded piston on it. So, I would like to warn everyone else that the 
> part number in the cross reference list is wrong and won't thread 
> into your block. 
> 
> I called up about 4 Volvo dealerships here in Central PA asking for 
> help, and when I mentioned it was for a PRV-6, the answer was 
> either "that engine was used in boats," or "i have no idea." I would 
> have thought Volvo dealership mechanics would have known a thing or 
> two about the engine??? This was kind of scary, considering I may 
> need to call one of these places in the future, should my D ever need 
> some serious engine work. I'll deal with that when it comes I 
> guess. 
> 
> Anyway, I looked back in the backissues and found where Marty Maier 
> specified the Autozone part, Wells PS-136. I was able to cross 
> reference this part at NAPA and the price was around $27 with tax. 
> It looks almost exactly like the original, with the exception that 
> there is a spade connector at the top instead of a bolt and nut. 
> 
> Matt
> #1604
> 
> P.S. Does anyone have any good tips for restoring the black plastic 
> valences? Mine are a little scratched up.






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