Date: Sat, 18 Sep 2010 12:55:35 -0700
Reply-To: Don Hanson <dhanson928@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Don Hanson <dhanson928@GMAIL.COM>
Subject: Re: Update and question inline VW Van block swap (in progress)
In-Reply-To: <AANLkTi=aJTRBXBVBaLKDQUC_YhcN4enB4RGCp5M1VeZJ@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Thanks to all who replied...problem fixed. It seems there are about 3,
maybe 4 different VW OP switches. I found a write up on line by Ron Salmon
giving a bit of insight, then went out and swapped out a white one for the
brown one that was in my old motor and all is good.
If I am not mistaken there is also a switch that will give a 'linear'
signal in addition to the go/no go one that powers the Idiot Light....so if
you get the one with two spades you can simply add the instrument with
actual pressure readings using just one switch.
"That's Me" for later on...
So I am now draining out my "wash the inside of the motor" oil and getting
ready to test her out....
So far, this has been a pretty easy swap...if I do it again, it will be
way simple, since I made some 'sequencing mistakes' like putting my cross
engine brace on before I did the exhaust, stuff like that...It would be
really simple with a lift and a real shop..
Don Hanson
On Sat, Sep 18, 2010 at 12:14 PM, Don Hanson <dhanson928@gmail.com> wrote:
> I didn't change anything in the vehicle wires...I have one wire with a
> female spade conncector that plugged onto the old sender...at the filter
> housing I assume, it won't reach the switch at the block...So I plugged that
> onto the new filter housing's spade terminal and get the behavior outlined
> in the first post...There must be a difference in the senders somehow...just
> one year apart in motors..but they did go from 1.8 to two liters that year,
> so maybe they swapped in another switch, too. I am going to look to see if
> maybe the swithches are interchangable..
>
> Thanks for the reply,
> Don Hanson
>
> On Sat, Sep 18, 2010 at 11:58 AM, Zolly <zolo@foxinternet.net> wrote:
>
>> About the oil pressure light; I think, you have two switches and maybe the
>> wires are either swopped or the two switches are. They work opposite to
>> each other.
>> Zoltan
>>
>> ----- Original Message ----- From: "Don Hanson" <dhanson928@GMAIL.COM>
>> To: <vanagon@GERRY.VANAGON.COM>
>> Sent: Saturday, September 18, 2010 11:19 AM
>> Subject: Update and question inline VW Van block swap (in progress)
>>
>>
>>
>> Good morning all.
>>>
>>> I got my 'new' motor in and running pretty well. Some glitches solved
>>> and one remains that I can use an electrical Guru's guidance with, if
>>> anyone could. My Oil light.
>>>
>>> Here's the relevant information: 84 Vanagon with (formerly) a 1.8 liter
>>> Cabriolet inline four motor ('92m.y. I was told) Digifant operating
>>> system. I replaced the lower end with an ABA 2.0 Jetta motor 93m.y. but
>>> kept all the head and everything else from the older 1.8liter. So I
>>> have a
>>> different oil pump now than before, the one from the Jetta with an
>>> incorporated water/oil interface(not being used).. Now I get "backwards"
>>> behavior from before from my idiot light on the dash..
>>> .No light up when the key is on but not started. (The other indicator
>>> lights behave as before...Alternator and O2 sensor on, then off after
>>> start
>>> and a little increase in RPM. The oil pressure warning light,
>>> however...stays dark with key on-- motor off.)...then it lights up
>>> (flickering sometimes) when the motor starts and gets brighter as RPM
>>> (and I
>>> assume oil pressure) increases....I have some 10w oil in there right now
>>> as
>>> a peliminary wash-out oil so it is pretty light. Ok so when the motor is
>>> really hot and idles down low....the light flickers OFF....Like when the
>>> oil
>>> pressure is low, the warning light goes OFF and when it's high, the
>>> warning
>>> light comes on. Wassup with that?
>>>
>>> I have a no dynamic oil pressure gauge system...just that idiot light..I
>>> have tried plugging the sender wire (from the main harness up to the dash
>>> light) right onto the spade connector on top of the oil filter
>>> flange....I
>>> have also tried putting that wire onto a spade connector that comes from
>>> the
>>> front of the motor's head...and I have tried connecting both of those
>>> spade
>>> terminals to the instrument light plug at the same time...It is just
>>> backwards. Light bright when oil pressure is high/light off when OP is
>>> low..is there a way to reverse the action of the lamp?
>>>
>>> I plan on testing my oil pressure with a real gauge soon as I get to it,
>>> but until then, I would like to have a functioning warning system.
>>> Should I
>>> just take the filter housing mount off my old 1.8 liter block and use
>>> that?
>>> That seems reasonable but I think I will eventually hook up some plumbing
>>> to
>>> the little heat exchanger at the oil filter and get that working ...so if
>>> I
>>> can just swap some wires or change polarity or some "electrical thing"
>>> that
>>> would be good...
>>>
>>> The motor sound really good and strong and quiet in the internals. I
>>> had
>>> to swap on my old water pump because the Jetta one was noisy and I had a
>>> few
>>> water and gasoline leaks on start up (fire extinguishers close at hand
>>> for
>>> that event) Then she was overheating till I bled the rad again...And she
>>> is
>>> timed by "Ear" since I have no timing light...I have a few more wires to
>>> clean up and then I am going to go for a test spin....
>>>
>>> Thanks, if anyone can help with that oil pressure idiot light's
>>> bass-ackwards behavior..
>>>
>>> Don Hanson
>>>
>>
>>
>>
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>
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