[T3] No oil pressure

[Brian Fye]

Okay... I'll learn not to skim next time!  Since the engine is out of the
car, I would drain the oil out and remove the pump cover.  Try removing the
the oil pressure bypass plunger/spring and then try blowing air up through
the plunger bypass hole and see if you get any are movement at the pump.
you may have a blocked galley, the plunger might be stuck...  Also check to
make sure your pick up tube is not touching the bottom of the deep sump and
causing starvation that way.

Good luck!


On Fri, May 10, 2013 at 8:43 AM, Brian Fye <bfye at canyonville.net> wrote:

> did you pack the oil pump gears with petrolium?  also, is there any chance
> you have the oil pump to oil cooler lines reversed?  i've seen that happen
> before.
>
>
> On Fri, May 10, 2013 at 8:40 AM, David Sanderson <djsanderson at telus.net>wrote:
>
>> Hi Folks
>>
>> I'm seeking some help as I have run out of ideas regarding my newly built
>> motor -  a motor with no oil pressure. In all the VW engines that I've
>> built I have never had an issue with oil pressure but I have one now. After
>> all the careful work assembling the engine I put it in the car and with
>> some excitement worked on starting it. Well, it started fine but there was
>> no oil pressure. I turned it off and looked at everything but could not
>> find anything obviously wrong. I tried a couple more times - it starts and
>> runs but the oil pressure idiot light won't go out. I know this light and
>> sensor work because there were in the old engine and worked fine.
>>
>> I am at a loss to figure out the problem. The engine is relatively stock,
>> a new dual relief case, 1776 with a full-flow system, 26 mm oil pump and a
>> deep sump. Here's what I have done so far. During the build, I blew air
>> though all the galleys and lines to make sure everything was clear and
>> clean and then assembled the engine with much care.
>>
>> Since I had no oil pressure and was not willing to continuing running it,
>> so I pulled the engine out of the car and set it on a stand where I could
>> turn it over with a battery and starter and look for problems. I am
>> assuming that with some cranking there should be enough oil pressure to
>> turn the light off. Thinking that perhaps I have made a stupid goof and
>> forgot to put the gears in the oil pump I removed the cover but they were
>> there and everything seemed fine. Turn the engine over and the pump gears
>> move. I then went through a number of steps, including removing the deep
>> oil sump (thinking there was a pickup problem), changed out the Gene Berg
>> oil pump cover plate and used a Scat version, finally swapping out the 26
>> mm pump and installing a stock 21 mm pump - none of these had any impact.
>> There is still no oil pressure. I installed a t-connector on the oil
>> sending unit situated on top of the oil cooler and installed a mechanical
>> pressure guage and it confirmed, no oil pres
>>  sure.
>>
>> During this process, I have also separated the oil lines to the full flow
>> system so that I could see the output of the pump directly, into a
>> container. These engines should generate considerable oil pressure at start
>> up and yet I get only a dribble out of the hose.
>>
>> I am at a loss as to what to do. It's like the pump doesn't pump or get
>> oil and yet I know there is lots of oil in the case. I could begin to
>> disassemble the engine but I am not sure what I would be looking for. I had
>> thought with your broader experience at these engines someone might have a
>> suggestion.
>>
>> Any thoughts, questions or advice would certainly be appreciated.
>>
>> Thanks.
>>
>> Dave
>> -------------------------------------
>> 1977 911S
>> 1965 Sunroof Notch
>> 1958 Karmann Ghia
>> http://www.sandersonmotorsports.com
>> Notch build thread here:
>> http://www.thesamba.com/vw/forum/viewtopic.php?t=482533&postdays=0&postorder=asc&start=0&sid=fa176f0eb3dd02b8f3152e46fa22221b
>>
>> -------------- next part --------------
>> An HTML attachment was scrubbed...
>> URL: <
>> http://lists.vwtype3.org/pipermail/type3-vwtype3.org/attachments/20130510/1802b6fe/attachment.htm
>> >
>> _______________________________________________
>> VWType3.Org mailing list - type3 at vwtype3.org
>> http://lists.vwtype3.org/listinfo.cgi/type3-vwtype3.org
>> Contact gregm at vwtype3.org if you need help with the list.
>>
>
>
>
> --
> Brian Fye
> Canyonville Christian Academy
> 541 839 4401 ext. 110
>



-- 
Brian Fye
Canyonville Christian Academy
541 839 4401 ext. 110
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.vwtype3.org/pipermail/type3-vwtype3.org/attachments/20130510/78e8f341/attachment.htm>