Date: Fri, 15 Aug 2014 16:37:37 -1000
Reply-To: "SDF ( aka ;jim lahey' - Scott )" <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: "SDF ( aka ;jim lahey' - Scott )" <scottdaniel@TURBOVANS.COM>
Organization: Cosmic Reminders
Subject: Re: WTB: EVAP charcoal canister
In-Reply-To: <BLU177-W23A306FC35B9A17589F612E0E90@phx.gbl>
Content-Type: text/plain; charset=windows-1256; format=flowed
oddly, I've never had any problems with deposits on intake valves.
I always get 'em to run just great.
it's not hard to eyeball the intake valve area on a waterboxer......just
remove intake manifold.
Perhaps an 'Italian Tune-up' is in order.
for those that don't know that 70's era term..
it means continuous high load high rpm operation..
like going full bore up a long grade at 100 mph at WOT.
there's the old carb cleaner down the intake and hold 2,000 rpm for a
few minutes too, in the repair bay or back yard, not on the road running.
On 8/15/2014 11:42 AM, James wrote:
> It won't be the charcoal canister, which actually adds air containing gasoline vapours to the engine intake.
>
> It's probably either injector spray pattern (dirty injectors don't spray well), or (more common in my experience), deposits on your intake valves. Does the bogging down go away when the engine is warm? Then it's probably deposits on the intake valves. If the bogging down is independent of engine temperature, then look at cleaning the injectors to restore the fine spray pattern.
>
> VWs are famous for deposits on the intake valves; the only VW I've owned that didn't develop them was a diesel Golf. There are gasoline additives that will remove them - Techron is the one VW officially recomends, but others will do the job, over time. Stick with better gasolines to reduce the formation of deposits in the first place.
>
> James
> Ottawa, ON
> '91 Weekender
>
>> Date: Fri, 15 Aug 2014 08:01:19 -0400
>> From: rjdperry@GMAIL.COM
>> Subject: Re: WTB: EVAP charcoal canister
>> To: vanagon@GERRY.VANAGON.COM
>>
>> Agree, wouldn't mind knowing what to look for with the canister. I have had
>> an issue with off-idle bog since I bought my '84 with 1.9. Idle switch is
>> good, vacuum lines seem good, think it could be a clogged charcoal canister
>> that needs to be revved up before getting flow?
>>
>> Ryan Perry
>>
>>
>>
>> On Fri, Aug 15, 2014 at 4:38 AM, Michael Magnani <mfmagnani@sbcglobal.net>
>> wrote:
>>
>>> I was just wondering..... Is there any preventive maintenance or
>>> inspections we should be doing to the EVAP system to avoid having problems?
>>> My 1990 2.1 WB runs fine and I'd like to keep it that way.
>>> Mike M
>>>
>>> Sent from my iPad
>>>
>>>> On Aug 14, 2014, at 17:10, Dennis Haynes <d23haynes57@HOTMAIL.COM>
>>> wrote:
>>>> The new canister does still have a bottom vent, a large one. Just not
>>> through a hose tucked into the frame. Fuel vapor containment/recovery
>>> systems have been with us since the late 60's. The purge valve on your
>>> vanagon was vacuum operated and opened as the throttle opened. Later
>>> vehicles even have an air pump to pressurize the system and failure to hold
>>> pressure gives a fault code.
>>>> Dennis
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
>>> Of Neil N
>>>> Sent: Thursday, August 14, 2014 3:10 PM
>>>> To: vanagon@GERRY.VANAGON.COM
>>>> Subject: Re: WTB: EVAP charcoal canister
>>>>
>>>> Very helpful responses folks and thanks for the pmails. I will inspect
>>> the vent hose from bottom of canister. It indeed vents to atmosphere. I may
>>> also try removing the hose at canister inlet.
>>>> Dennis: ill google up that part number. Much thanks. Is the lack of
>>> venting at new canister a potential problem in that there is no fail safe?
>>> (Then again, some vanagons already have EVAP "venting" in the form of poor
>>> maintenance. ;). Ha ha. )
>>>> The engine is running ok now but I'd like to address this issue soon.
>>> The forestry roads are tempting..... Given the noisy state parks I'm
>>>> encountering. ;)
>>>>
>>>> Heat, engine load (long grade), small tank outlet not withstanding, my
>>> Jetta engine management operates the purge valve in a series of short
>>> pulses at idle and possibly at other RPMs but if I'm not mistaken, the
>>> stock WBX purge valve allows air to be constantly pulled soon after idle.
>>> Maybe there's subtle differences between the Mk 3 Jetta and vanagon fuel
>>> tank and EVAP ?
>>>> I don't recall seeing a purge valve on my vanagon while it was still in
>>> OEM air cooled form. I'll read my Bentley.
>>>> Neil.
>>>>
>>>> On Thursday, August 14, 2014, Dennis Haynes <d23haynes57@hotmail.com>
>>> wrote:
>>>> I believe the replacement number is 175-201-801-A. The new one does not
>>> use
>>>>> the hose connection on the bottom.
>>>>>
>>>>>
>>>>> Dennis
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> From: 'OlRivrRat'
>>>>> Sent: ýWednesdayý, ýAugustý ý13ý, ý2014 ý4ý:ý05ý ýPM
>>>>> To: Vanagon
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Neil
>>>>>
>>>>> I would start pulling hoses off the Canister to see if any
>>>>> Disconnects make it run better ~ Especially check
>>>>>
>>>>> the BottomHose if yours still DeadEnds into the FrameRail as some
>>>>> MudDobbingBug may have built a Nest in it ~
>>>>>
>>>>>
>>>>> ORR ~ DeanB
>>>>>
>>>>>> On 13 Aug , 2014, at 1:33 PM, Neil N wrote:
>>>>>>
>>>>>> Hi folks.
>>>>>>
>>>>>> I am fairly certain that the Vanagon charcoal filter canister is NLA.
>>>>> This
>>>>>> would be for a 1981 gas Vanagon.
>>>>>>
>>>>>> I'm currently in Brookings OR and can travel a reasonable distance.
>>>>>> My
>>>>> bus
>>>>>> is running ok right now but if anyone had a known good canister they
>>>>> could
>>>>>> sell me or could suggest a source (wrecker, etc.) I might be
>>>>>> interested
>>>>> in
>>>>>> it.
>>>>>>
>>>>>> I have not confirmed if the current canister at fault or if it's
>>>>>> simply a clogged hose but I'm about 100% certain it is or will soon
>>> fail.
>>>>>> Thanks,
>>>>>>
>>>>>> Neil.
>>>>>>
>>>>>>
>>>>>> On Wednesday, August 13, 2014, Neil N <musomuso@gmail.com
>>>>>> <javascript:;>>
>>>>> wrote:
>>>>>>> .......
>>>>>>>
>>>>>>> Very interesting to know more of the canister construction. Very
>>>>> helpful.
>>>>>>> I'll cut open the old 1981 vanagon high mile canister and post
>>>>>>> pics. I
>>>>> have
>>>>>>> a Jetta canister I can install. It has a nearly identical exterior.
>>>>>>>
>>>>>>> Of note, the fuel pump doesn't make much if any noise right now but
>>>>>>> has "always" gotten era all noisy on hot days, higher altitude,
>>>>>>> workinengine harder.
>>>>>>>
>>>>>>> This is a Jetta engine in my vanagon but ever since I'd gotten it
>>>>>>> to run reliably, it's always exhibited a tendency to run well, or,
>>>>>>> feel like it had slightly less power and acceleration. I have to
>>>>>>> wonder if this has
>>>>> been
>>>>>>> due to a failing charcoal c
>>>>>>>
>>>>>>
>>>>>> --
>>>>>> Neil n
>>>>>>
>>>>>> Blog: tubaneil.blogspot.ca
>>>>>>
>>>>>> '88 Westy http://tinyurl.com/c8rlw6p
>>>>>>
>>>>>> '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/
>>>>>>
>>>>>> Vanagon VAG *Gas* inline-VR Engine Swap Group:
>>>>>>
>>>>>> http://tinyurl.com/d7gd5ej
>>>>
>>>>
>>>> --
>>>> Neil n
>>>>
>>>> Blog: tubaneil.blogspot.ca
>>>>
>>>> '88 Westy http://tinyurl.com/c8rlw6p
>>>>
>>>> '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/
>>>>
>>>> Vanagon VAG *Gas* inline-VR Engine Swap Group:
>>>>
>>>> http://tinyurl.com/d7gd5ej
>
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