High Oil Pressure even after warmup

Randy in Maine · Posted: Sun May 18, 2014 10:24 am Post subject:

Straight 40 weight oil is just too thick.

A lot of us use 15-50 Mobil 1 (as it also has the Zn and Ph that we need and can be purchased at Walmart for about $25 for 5 quarts).

Danwvw · Posted: Sun May 18, 2014 10:58 am Post subject:

The Mobile 1 15W50 oil would be preferable to the straight weight 40W motor oil: But it is about twice the cost of something like the 10W40 Castrol motor and 20W50 Castrol I ran in my 1971 Bus when we lived in Iowa. Iowa can get really hot. That heat index would hit 120' F. in July and August when we were there . It does cool down nice at night though. If you have any oil leaks or oil being used the 20W50 does stay in the engine better though but it certainly can't be used if your engine has anything bigger than the stock oil pump and I would not want it in a new motor either! With my new engine which has a 26mm Oil Pump and Full Flow Filter, I have gone to 5W30 Castrol and will be going to 10W40 Castrol for the summer. The Mobile 1 15W50 Sounds great If on a Road trip through the desert though I may try it.
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1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

aeromech · Posted: Sun May 18, 2014 11:24 am Post subject:

You said you took it to the shop for a oil leak. Could they have switched the in and out lines on the filter mount? If so, it will cause the filter to swell and maybe high oil pressure.

The other thing is did you replace your oil pressure sender or gauge? VDO makes two ranges and if you install the wrong configuration it will show high oil pressure. Ask me how I know.
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Lead Mechanic: San Diego Air and Space Museum
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Danwvw · Posted: Sun May 18, 2014 11:45 am Post subject:

"aeromech" You may be onto something!
_________________
1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

tolstoy · Posted: Sun May 18, 2014 1:32 pm Post subject:

Nope....wish I could find a picture of this oil filter mount.....but the are no hoses.....it is a solid chunk of cnc cut aluminum. Looks a little like the alternator stand, but with the shroud on all you really see is the filter poking between the distributor and the coil. The placement is exactly why I accidentally pulled wires off the coil while trying to remove the old filter.

Oh, and the oil leak turned out to just be a bad valve cover seal. Kind of what I expected it to be, but with a fresh new born an a 2 year old at the time....I didn't have the time to mess with it myself.

Tolstoy
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The sun is the same in a relative way, but you're older. Shorter of breath and one day closer to death.
'70 Westy

aeromech · Posted: Sun May 18, 2014 2:12 pm Post subject:

I really need to see a picture or two of this mystery oil filter mount.
_________________
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

spanky324 · Posted: Sun May 18, 2014 2:44 pm Post subject:

Filter Pump

aeromech · Posted: Sun May 18, 2014 3:36 pm Post subject:

Desertbusman · Posted: Sun May 18, 2014 4:01 pm Post subject:

You really got my curiousity going. Please keep digging to find info on the filter deal or take some descriptive pictures. I'm not aware of anything like you have described. But the many other aftermarket devices that fit into the case ports under the stock cooler are usually a lot more harmful than good.
_________________
71 Superbug
71 Westy

Vince Waldon · Posted: Sun May 18, 2014 4:35 pm Post subject:

OP: by "filter pump" do you perhaps mean one of these:

http://www.thesamba.com/vw/forum/viewtopic.php?t=469722
_________________
Vince Waldon Edmonton Alberta CANADA
1970 baywindow

Desertbusman · Posted: Sun May 18, 2014 4:42 pm Post subject:

Those arn't an option on a bus. The "moustache" engine mounting bar is in the way.

However it was sure good that VW finally did put a filter on the engines even if only bugs.
_________________
71 Superbug
71 Westy

spanky324 · Posted: Sun May 18, 2014 4:49 pm Post subject:

Danwvw · Posted: Sun May 18, 2014 4:49 pm Post subject:

Sounds like some kind of oil cooler sandwich oil filter! I have never seen one but they sound kind of cool! The problem I would think they would have is they would make the Oil run hot unless they're by-pass. May-be just by-pass in parallel with the oil cooler! Either way I would think they would increase the oil temperature.
_________________
1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

Desertbusman · Posted: Sun May 18, 2014 5:13 pm Post subject:

After thinking more about the cooler mounted filter some bits of memory are kicking in. A cut hole on the rear (rear) side of the fan shroud and a little filter canister sticking up on an angle. In front of the distributor right in line with the stock cooler. Somewhere there were instructions on where and how to cut the shroud.

As far as functioning and circuitry we better wait until someone comes up with the real description from whoever manufactured it. The simple design would have it in series and not the greatest functioning with limited filtration and altered engine cooling. If in parallel it could be decent but complex and needing it's own valving to control it.
_________________
71 Superbug
71 Westy


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