

| Subject: | Re: oil pressure problem on my 1983 air-cooled |
| From: | Roy Nicholl |
| Date: | Wed, 23 Aug 2017 17:07:12 -0300 |
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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