Date: Sat, 18 Jun 2016 12:48:37 -0700
Reply-To: Scott - IMAP <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott - IMAP <scottdaniel@TURBOVANS.COM>
Subject: Re: Coolant mystery
In-Reply-To: <CAB2RwfihjQPnxHr6-dd8NSB1i0ym9ENMHJwwxNXoVDb+jC4Ysg@mail.gmail.com>
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Hi,
not likely to happen on exhaust stroke, but compression stroke for sure.
The pressure developed there is super high ...numerous hundreds of psi
I'd think.
lol....IMO 'usually' VW Vans get a new engine every 7 years ..
tho there are countless exceptions to that in Vanagons.
also, traditionally, lots of 'back yard' work on VW's ...not all of it
is done properly.
don't get me started on how poor most invoices are !
here's what is one a decent invoice...
# 1....The issues that were addressed, and what action taken
...'replace' , 'adjust. inspect, lubricate, etc. ( when I worked on
avionics in the AF we had to document all jobs thoroughly ..
and ...interestingly, then all started with Write-ups and symptoms the
pilot noted.
we had a list of 3 digit codes, like 200 of them , and had to enter
them on a form for each repair. I still remember some of them..
first was the 'how malfunctioned' code....135 was 'binding stuck or
jammed' ..
then on the Repair Action code ..we had scads or those ..'reset',
replace, align, and on and on.
I good shop will document in writing EXACTLY what they did ..tho I'm
sure most don't.
Like 'tune up' doesn't mean much ..
replaced cap and rotor, inspected air filter and spark plugs, and
checked timing, etc...that means something useful.
# 2 ..parts installed
# 3 ..."Notes' ...everything that was noticed but not addressed
...thinking about the future , like warnings about weak areas etc.
The Right Stuff is the ultimate perfect black silicone type sealant. I
wouldn't be without it, and never use anything else. Get it in the
grease gun style, not the aerosol .
On 6/18/2016 12:16 PM, Neil N wrote:
> Thanks Scott.
> Mixed up heads. Who knew? lol
>
> I asked mostly on behalf of the OP though my 2.1 I recently went
> through a similar issue.
> Turned out the blue cap on expansion tank had a failed valve; I could
> blow-suck air through
> it. New cap seems to have solved the issue.
> My original concern was that compression or exhaust stroke was pumping
> air into the cooling system.
>
> But your point on engine history is really important. I'd assumed the
> engine on my bus was
> original. It could be anything but that. These rigs are so old now
> some having at least a
> few former owners. And you never know what work was done or how well
> it was done.
> A friend of mine had her 1.9 WBX repaired by a mechanic who'd never
> laid hands on a WBX.
> From what I can see, he took his time and likely used the "Right
> Stuff" or similar at coolant
> jacket seal at each head. But he has yet to provide even a work order
> for what was done.
> I'm pushing her to get that information.
> And this was from a professional shop.
> It might be fine but who knows.
>
> Never "assume" ?
>
> Neil.
>
> On 6/18/16, Scott - IMAP <scottdaniel@turbovans.com> wrote:
>
>> Supposedly the AMC heads are a much better casting not prone to cracks (
>> tho they come with cheaper valves and retainers I gather ) .
>>
>> I haven't seen any VW heads crack ....
>> I'd probably focus on that one if any problems tho.
>> Make sure your VW head, and both heads are for a 2.1.
>>
>> One 'rebuilt' 1.9 engine I ended up with had a 1.9 head on one side and
>> a 2.1 one on the other , until I got that straightened out.
>>
>> If you personally don't know the exact history of what you have ..
>> you never know what you're going to find. Could be anything.
>>
>> Scott
>
> --
> Neil n
>
> Blog: Vanagons, Westfalia, general <http://tubaneil.blogspot.ca>
>
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>
> 1981 Westfalia "Jaco" Images, technical <http://tubaneil.googlepages.com/>
>
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