Date: Wed, 23 Aug 2017 16:03:13 -0500
Reply-To: KI4TLF <ki4tlf@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: KI4TLF <ki4tlf@GMAIL.COM>
Subject: Re: oil pressure problem on my 1983 air-cooled
In-Reply-To: <43B53017-5280-4E80-9FB2-E2DE0D5AC956@NBNet.nb.ca>
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I used the matchbook cover for the points, after lighting the smoke.
Greg
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Roy Nicholl
Sent: Wednesday, August 23, 2017 3:07 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: oil pressure problem on my 1983 air-cooled
Don:
That was a smiling moment, I have fond memories of using two papers to
adjust the timing - one for a smoke and the other between the points and
notch :-)
> On 23-Aug-2017, at 15:10, Don Hanson <dhanson928@GMAIL.COM> wrote:
>
> My 57 air cooled bus always needed to be re-timed when I went from 6000'
> elevation to sea level.... otherwise it would stop!.... literally skid
> to a halt as the motor got too hot..., Wait a bit, and she'd go again..
> I got good at timing it using a zig-zag rolling paper between the
> points and the fan pulley notch...
>
> On Aug 23, 2017 10:50 AM, "Christophe Guilbert"
> <cguilbert@picasso.ucsf.edu>
> wrote:
>
> Thanks Dennis.
>
> You guessed it, I removed the ERG, Yes cylinder head is over 400 most
> of the time.
> My van is a California model so the timing is 5deg ATDC, taking into
> account that I have no ERG, reducing the timing down to 35 degrees
> would means what ? 40 (35+5) ATDC or 30(35-5) BTDC ?
>
> I have a secondary oil cooler in the front already in place , I just
> did not had time to connect it yet using PTFE stainless braided line
> and plate sandwich (with thermostat). I love your setting but it
> appears to me that you need to remove the engine to install it. I will
> certainly do that during my next engine rebuild. I will connect the
> second oil cooler this week, do I still need to change the timing
> knowing that the temp will be fixed ?
>
> Thanks so much for the help.
>
> Chris
>
>
> On 08/22/2017 10:58 PM, Dennis Haynes wrote:
>
>>
>> Your engine is overheating terribly. Your oil temp should be around
>> 200 or lower. Cylinder head temps are probably well over 400. Most
>> likely your EGR system is missing or not working. As a fix you need
>> to get the ignition timing down to about 35 degrees total advance.
>> Consider getting a real oil cooling system in place.
>>
>> Dennis
>>
>> Sent from my Windows 10 phone
>>
>> *From: *Christophe Guilbert <mailto:cguilbert@PICASSO.UCSF.EDU>
>> *Sent: *Tuesday, August 22, 2017 7:29 PM
>> *To: *vanagon@GERRY.VANAGON.COM <mailto:vanagon@GERRY.VANAGON.COM>
>> *Subject: *oil pressure problem on my 1983 air-cooled
>>
>>
>> Hi guys,
>>
>> I installed recently an oil pressure gauge in my vanagon (air-cooled
>> 2L
>> 1983)
>>
>> in a hot day (100F) , my (very annoying ) alarms triggers all the
>> time when I am idling. the pressure is less than 5 PSI for an oil
>> temp of 250-260F.
>>
>> I notice that the oil pressure really diminish over oil temperature
>> which is normal but I am wondering if I am within the spec .
>>
>> When engine is cool , I have a PSI of 45. I have 20PSI around 240F
>> when the van is cruising at 60-65MPH, it goes down to 15PSI at 260F
>> while cruising at 60-65MPH.
>>
>> I think my oil pressure is too low , What do you think ? . Do you
>> think my oil pump is guilty ? , I went cheap by not replacing it when
>> I rebuilt my engine.
>>
>> Do you also think that the low oil pressure could be the reason why
>> I have noisy hydraulic lifter when the engine is cold.
>>
>> Thanks for any feedback
>>
>>
>> Chris
>>
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