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kreissig Samba Member
Joined: May 30, 2009 Posts: 105 Location: Costa Mesa, CA
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Posted: Wed Jun 22, 2016 10:42 am Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) |
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***Solved***
So guess what? What I did was:
1. Re-set the valve clearance to zero.
2. Started it for just a few seconds.
3. Re-set the valve clearance to 1 1/2 turn preload.
No cat, no anything else, and here is the result -
_________________ Auch aus Steinen, die in dem Weg gelegt werden, kann Mann etwas schoenes bauen. - Johann Wolfgang von Goethe |
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Jon_slider Samba Member
Joined: April 11, 2007 Posts: 5091 Location: Santa Cruz, Crowdifornia
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Posted: Wed Jun 22, 2016 11:05 am Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) |
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kreissig wrote: |
two years ago when it passed with a blow-by condition. It actually failed first. I went home and backed off the pre-load on the valves, took it back and it passed. |
jberger wrote: |
That said, your comment above is very interesting to me... you backed off the preload.. how much? |
kreissig wrote: |
I just did the same thing as two years ago. I set the preload at 1 and 1/2 turns instead of 2. |
kreissig wrote: |
***Solved***
Re-set the valve clearance to 1 1/2 turn preload. |
Yay!
and the prize for refreshing your memory about the solution goes to jberger _________________ My Soapboxes: Inflation; Handling; Gearing; Decoupling; Swepco |
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kreissig Samba Member
Joined: May 30, 2009 Posts: 105 Location: Costa Mesa, CA
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Posted: Wed Jun 22, 2016 11:20 am Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) |
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Jon_slider wrote: |
kreissig wrote: |
two years ago when it passed with a blow-by condition. It actually failed first. I went home and backed off the pre-load on the valves, took it back and it passed. |
jberger wrote: |
That said, your comment above is very interesting to me... you backed off the preload.. how much? |
kreissig wrote: |
I just did the same thing as two years ago. I set the preload at 1 and 1/2 turns instead of 2. |
kreissig wrote: |
***Solved***
Re-set the valve clearance to 1 1/2 turn preload. |
Yay!
and the prize for refreshing your memory about the solution goes to jberger |
That's true Jon! I did some other things at that time, so I was not sure if that was the silver bullet. But.....hell, maybe it was. It seems so now!
_________________ Auch aus Steinen, die in dem Weg gelegt werden, kann Mann etwas schoenes bauen. - Johann Wolfgang von Goethe |
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slo356 Samba Member
Joined: February 18, 2002 Posts: 365 Location: Central Calif Coast
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Posted: Wed Jun 22, 2016 10:36 pm Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) ***Solved*** |
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Great! Thanks for giving a follow-up. I'll remember this if my Syncro ever has similar symptoms. Enjoy that 2.2! _________________ '65 T1 Sedan
'87 T3 Syncro |
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regis101 Samba Member
Joined: July 28, 2005 Posts: 2078 Location: Livermore, Ca
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Posted: Thu Jun 23, 2016 8:51 pm Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) ***Solved*** |
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Let me remove the wine goggles first.
So I'm seeing it run that clean, I mean those numbers, without a Cat? _________________ Peace, Regis |
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slo356 Samba Member
Joined: February 18, 2002 Posts: 365 Location: Central Calif Coast
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Posted: Thu Jun 23, 2016 9:26 pm Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) ***Solved*** |
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I believe the numbers are with his current catalytic converter, just not a different new cat. _________________ '65 T1 Sedan
'87 T3 Syncro |
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kreissig Samba Member
Joined: May 30, 2009 Posts: 105 Location: Costa Mesa, CA
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Posted: Sat Jun 25, 2016 8:58 am Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) ***Solved*** |
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Yes. Sorry for the confusion. It's my original CAT (Rocky Mountain Westy made system).
It also may not be as efficient now, but passing. _________________ Auch aus Steinen, die in dem Weg gelegt werden, kann Mann etwas schoenes bauen. - Johann Wolfgang von Goethe |
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kreissig Samba Member
Joined: May 30, 2009 Posts: 105 Location: Costa Mesa, CA
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Posted: Tue Aug 21, 2018 7:20 pm Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) ***Solved*** |
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Here we go in 2018...
This was with a leaking seat on injector no# 3
This is with injectors back from Mr. Injector, new wires, cap, rotor, coil, cat. O2 sensor, no vacuum leaks, and 5 degrees BTDC, good grounds, new body-to-motor ground strap...ect...
I've now used Sea Foam in the intake and re-gap'd the plugs to .035 and adjusted the valves to 1.5 times in - but I'm thinking I'm going to back off 1/4 turn more.
I will retard the timing to 3 degrees.
Vanistan 2.2
Billet throttle Body
Vacuum Switching Module
The idle-adjustment screw (allen on top) has virtually no effect on idle speed - yes with the O2 sensor disconnected and the RPM signal to Stabilizer disconnected....no effect.
Hmmmm???
At lest it always idles at about 850 _________________ Auch aus Steinen, die in dem Weg gelegt werden, kann Mann etwas schoenes bauen. - Johann Wolfgang von Goethe |
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Mikesarge Samba Member
Joined: September 25, 2008 Posts: 221 Location: PNW
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Posted: Tue Aug 21, 2018 9:35 pm Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) ***Solved*** |
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Did you ever end up checking compression?
I about nuked my van after throwing parts at it for weeks and multiple failed (oregon DEQ) emissions tests until I just did a compression/leak down test and found out I had a bad intake valve set on one cylinder. it caused extremely high HC numbers, and the van ran great under load above 1k RPM. |
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kreissig Samba Member
Joined: May 30, 2009 Posts: 105 Location: Costa Mesa, CA
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Posted: Tue Aug 21, 2018 9:56 pm Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) ***Solved*** |
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@Mikesarge
Hi...yea I did. Its good across all cylinders. I've got this aggressive cam for the 2.2 so....I'm thinking it has a bit to do with it.
Although...I've never cleaned out the Plenum with Sea Foam before, so I hope to see an effect from that. _________________ Auch aus Steinen, die in dem Weg gelegt werden, kann Mann etwas schoenes bauen. - Johann Wolfgang von Goethe |
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jberger Samba Member
Joined: November 17, 2003 Posts: 2476
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Posted: Wed Aug 22, 2018 8:49 am Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) ***Solved*** |
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Your cam has a bit to do with it.. but only because you are doing the idle tests. Remove the driveshaft and take it to a dyno smog station. Don't point out that it is AWD. The rolling road test is much more forgiving on digifant FI. I just smog'd my 2.4 (this version is running the RJE cam) with excellent results. Adjusting your valves 1/2 a turn will not work either as the preload drops to zero after you run it for a moment.
J
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jberger Samba Member
Joined: November 17, 2003 Posts: 2476
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Posted: Wed Aug 22, 2018 8:58 am Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) ***Solved*** |
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Ha... that one was from 2016 I forgot.. With stock exhaust
This is from 2018 with the RMW exhaust.
The only trick with my 2.4 is the idle is soooo lumpy that the machine will not read the exhaust for the test to start. You either have to stuff a rag in the tail pipe with the probe or I have made a tail pipe adapter that necks the outlet down to 1 1/4". This creates enough back pressure and still allows it to run ok.
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Slimvest Samba Member
Joined: March 20, 2014 Posts: 431 Location: Portland, OR
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Posted: Wed Aug 22, 2018 9:19 am Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) ***Solved*** |
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Quote: |
The only trick with my 2.4 is the idle is soooo lumpy that the machine will not read the exhaust for the test to start. |
I've had the same issue in Oregon with my RJE 2.2. Never got to the level of timing or valve adjustments though. Just a HOT cat. _________________ '87 GL w/ Reimo top |
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kreissig Samba Member
Joined: May 30, 2009 Posts: 105 Location: Costa Mesa, CA
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Posted: Thu Aug 23, 2018 6:14 pm Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) ***Solved*** |
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Thanks @jberger for the info. I have a guy that looks past my Billet TB and VSM, but he would not roll it....I'm sure of it.
I tried to go one other place and they mentioned my TB and flagged the VSM as modifying the EGR system!
Oh well...these places do and write what they want, even though I explained what it was.
I've got one more card to play - then I'll post the results.
Thanks for the feedback again. _________________ Auch aus Steinen, die in dem Weg gelegt werden, kann Mann etwas schoenes bauen. - Johann Wolfgang von Goethe |
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RCWesty Samba Member
Joined: April 06, 2007 Posts: 182 Location: Reno NV
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Posted: Sat May 25, 2019 9:46 am Post subject: Re: 1986 Syncro CA smog (Vanistan 2.2) ***Solved*** |
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Kreissig,
any updates?
I'm having similar issue with a low mile Vanistan engine. Valve adjustments have seem to help, but the engine is not holding a vacuum. Running too rich to pass smog. Suspect injectors, valves not correctly seating and maintaining a vacuum. Grounds, oxygen sensor, hoses have been checked. Also wonder that the RMW cat may have failed given it was running rich. _________________ 89 Burgundy Westy (sold)
90 Blue Syncro Westy |
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