Date: Tue, 29 Dec 2015 12:33:45 -0800
Reply-To: Rocket J Squirrel <camping.elliott@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Rocket J Squirrel <camping.elliott@GMAIL.COM>
Subject: Re: Dodged a bullet -- blowed the oil filter right off Why,
I'll tell you BTW
In-Reply-To: <23935D2E-A423-4430-9770-6CA809888B0A@comcast.net>
Content-Type: text/plain; charset=windows-1252; format=flowed
So the FLAPS counterman that originally said that the correct filter for
a Saab 900 would be a Bosch 3300 was inaccurate? That might explain the
problem. It was from that part number that I got the cross to the WIX
filter which was blowed off.
--
Jack "Rocket j Squirrel" Elliott
1984 Westfalia, auto trans,
Bend, Ore.
On 12/29/2015 09:56 AM, OlRivrRat wrote:
> According to the WIX LookUp the Correct Filter for a Saab 900 would be
>
> a 51348XP which has 3/4-16 Threads ~
>
> According to the Bosch LookUp the Correct Filter for a Saab 900 would be
>
> a D3421 which has 3/4-16 Threads ~
>
> According to The Bosch LookUp the Correct Filter for a Vanagon 2.1L would
>
> Also Be a D3421 ~
>
>
> On 29 Dec , 2015, at 10:31 AM, Rocket J Squirrel wrote:
>
>> Okay, Chris tencentlife sent me a fresh copy of the oil cooler kit
>> installation instructions. For the filter, it says,
>>
>> "The filter to fit any year Saab 900 or 9000 will fit and has the
>> correct specs for the wbx."
>>
>> It was the counterman at the local FLAPS who determined that the Bosch
>> 3300 is what I'm looking for.
>>
>> Right threads or no?
>>
>>
>> On 12/28/2015 08:17 PM, Dennis Haynes wrote:
>>
>>> So let's get back to your failure. You have an oil pressure gauge. Do
>>> you use it?
>>
>> I do. And I was aware that oil pressures were higher than normal with
>> this summer oil in the engine.
>>
>>> The most important time for using one is just after start
>>> up and during warm up. As you drove off did you notice unusually high
>>> oil pressure?
>>
>> Sure I did, but no more unusual than the morning temps I've been seeing
>> this winter -- with that thick summer oil in the engine.
>>
>>> Is your gauge capable of reading abnormally high
>>> pressure or does it only go to 70psi? I choose the 150 psi gauges
>>> for a reason.
>>
>> It's a 150 psi gauge. I confess that I wasn't watching the oil pressure
>> gauge when I pulled out onto the street, I was dealing with icy roads
>> and oncoming traffic, which drew my attention. So I can't say what it said.
>>
>> It's when I do things like this that I realize that the only reason I've
>> managed to live to the age of 65 must have more to do with luck than brains.
>>
>> --
>> Jack "Rocket j Squirrel" Elliott
>> 1984 Westfalia, auto trans,
>> Bend, Ore.
>>
>> On 12/28/2015 08:17 PM, Dennis Haynes wrote:
>>> 3/4-16 is the thread size you want.
>>>
>>> Sorry Dennis
>>>
>>>
>>> -----Original Message----- From: Vanagon Mailing List
>>> [mailto:vanagon@gerry.vanagon.com] On Behalf Of Dennis Haynes Sent:
>>> Monday, December 28, 2015 11:15 PM To: vanagon@GERRY.VANAGON.COM
>>> Subject: Re: Dodged a bullet -- blowed the oil filter right off Why,
>>> I'll tell you
>>>
>>> I had limited time before but I wanted to get that wrong oil filter
>>> out there so all can stop wondering. How or why did I go here? This
>>> is not the first time nor the first vehicle I have seen this happen
>>> to. It is an error more common than one would expect. There are a
>>> bunch of oil filter/engine combinations that seem to work but under
>>> some conditions will fail. So I looked up the two filter numbers you
>>> provided and they both have the 20mm thread. You say this was
>>> recommended to you. Is that in writing? Imagine that failure causing
>>> an engine failure or worse an accident, fire, or environmental
>>> concern. As for oil filter sandwich adapters they usually use the
>>> same thread on both ends, the goal is to fit between the engine and
>>> the filter using the same filter.
>>>
>>> So let's get back to your failure. You have an oil pressure gauge. Do
>>> you use it? The most important time for using one is just after start
>>> up and during warm up. As you drove off did you notice unusually high
>>> oil pressure? Is your gauge capable of reading abnormally high
>>> pressure or does it only go to 70psi? I choose the 150 psi gauges
>>> for a reason. Watching cold oil pressure is sometimes more important
>>> than hot oil pressure, especially if a relief valve fails. Here is a
>>> weird one! Oil rises and water sinks to the bottom. So if you have an
>>> engine with a lot of condensation in the crankcase (it happens) in
>>> really cold weather the oil pump inlet may be blocked with ice. No
>>> oil pressure! The old beetle engines had the screen designed to pull
>>> down out of the way for this in addition in case they were clogged
>>> with dirt. I have seem more engine damage or other failures from cold
>>> weather operation than you can imagine. I've seen broken pump shafts,
>>> seals actually pushed out, spun bearings, etc. And not just on
>>> Volkswagens! Keep in mind this is not full time work for me. After
>>> the filter went lose you would have also seen the pressure gauge
>>> fluctuate long before the total oil loss. The oil light did its job.
>>> The later vans with the dynamic oil pressure warning system may have
>>> even given an earlier warning looking for a higher oil pressure above
>>> 2,000 rpm. The buzzer would also get your attention. This is why
>>> manufacturers don't always give us gauges.
>>>
>>> Now let's look at some engineering options. Since you have an 84 you
>>> don't have any original oil cooler. The only reason you need a short
>>> filter is to clear the exhaust. At some point the exhaust has or will
>>> need to be replaced. Using the engine pipes from the 2.1L will allow
>>> the normal oil filter. The 2 engine pipes, collector, and J-pipe will
>>> mate to the 1.9 catalyst and muffler. The GoWesty stainless pipes can
>>> be a reasonable cost longer life option. I'm done with Dansk, this is
>>> all I install now. Ultimately you can replace the rear engine bracket
>>> and go 2.1L exhaust all the way. You could also do an oil filter
>>> relocation. Replace the filter with an adapter to hoses and mount the
>>> filter on a stand-alone mount. Use an in line thermostat for the
>>> cooler. This can allow an even larger filter.
>>>
>>> Why think of filter size? Filters are designed to work in a certain
>>> flow range. While most think a smaller filter is adequate if there is
>>> not a problematic pressure drop they are missing a major point. A
>>> smaller filter means the oil has to pass through at a higher
>>> velocity. Filters stop some dirt on the surface but also through the
>>> depth of the media. Faster flow means more of the dirt can get pushed
>>> through. Look at furnace or air conditioning filters and note the
>>> dirt on the filtered side. Also, the smaller filter will have less
>>> capacity for accumulation. Not a super issue for our engines but
>>> something to consider.
>>>
>>> Dennis
>>>
>>>
>>>
>>>
>>> ----Original Message----- From: Vanagon Mailing List
>>> [mailto:vanagon@gerry.vanagon.com] On Behalf Of Rocket J Squirrel
>>> Sent: Monday, December 28, 2015 9:41 PM To:
>>> vanagon@GERRY.VANAGON.COM Subject: Re: Dodged a bullet -- blowed the
>>> oil filter right off Why, I'll tell you
>>>
>>> Okay, so can someone point me to a website that provides threading
>>> and dimensional specs for our kinds of filters? I need a filter about
>>> the same diameter as the stock 1.9L filter, about an inch or so
>>> shorter, to accomodate the reduced space that the banjo fitting takes
>>> up, and has the right threading -- whatever it is that I'm looking
>>> for.
>>>
>>> It's been a long time since I installed the oil cooler kit. I don't
>>> recall whether the fitting that goes between the engine and the oil
>>> filter has its own male and female threaded bits, and whether the
>>> sticky-out part that the filter mates with is the same threading as
>>> what comes out of the engine. But I'm pretty sure that tencentlife
>>> recommended the Bosch 3300 and crosses.
>>>
>>> Anyone got an email for tencentlife?
>>>
>>> -- Jack "Rocket j Squirrel" Elliott 1984 Westfalia, auto trans, Bend,
>>> Ore.
>>>
>>> On 12/28/2015 06:22 PM, Dennis Haynes wrote:
>>>> The reason the filter blew off the threads is because it is the
>>>> wrong one. The vanagon and many VW's of that error used a 3/4"
>>>> thread. This is common to many vehicles back then especially Ford
>>>> and some Chrysler. The filters you are using have a 20mm thread.
>>>> Yes it almost fits but it is a very loose fit and the thread pitch
>>>> is wrong. 20mm threads are common on many GM and some European
>>>> vehicles. Now go get a filter at least with the correct thread.
>>>>
>>>> Dennis
>>>>
>>>>
>>>> -----Original Message----- From: Vanagon Mailing List
>>>> [mailto:vanagon@gerry.vanagon.com] On Behalf Of Rocket J Squirrel
>>>> Sent: Monday, December 28, 2015 7:01 PM To:
>>>> vanagon@GERRY.VANAGON.COM Subject: Dodged a bullet -- blowed the
>>>> oil filter right off
>>>>
>>>> Okay, so it's my fault, but I think I lucked out.
>>>>
>>>> As temperatures drop down the freezing, and below, I change my
>>>> engine oil to 10-40, a thinner grade. But this winter I got lazy. I
>>>> admit it, I got lazy.
>>>>
>>>> Well, one cold morning last week I started the van and trundled
>>>> down the street to go downtown, and was about a 1/2 mile from home
>>>> when I noticed that the idiot light for the oil pressure was lit.
>>>> And the aftermarket oil pressure gauge I installed a few years ago
>>>> was at zero. They don't share the same sender or anything so I knew
>>>> it was serious.
>>>>
>>>> I pulled off the main road and got out and looked behind the van
>>>> and sure enough, a trail of oil behind me leading up to a small
>>>> puddle under the engine.
>>>>
>>>> Triple-A flatbedded the van to Gary's Ole Volks Home here in Bend,
>>>> and after an hour he called me and said that the oil filter had
>>>> plain blowed off.
>>>>
>>>> So here's what happened: at these low temperatures, I reckon that
>>>> the thicker summer oil was as thick as pine sap -- maybe amber --
>>>> resulting in very high oil pressure.
>>>>
>>>> The oil filter was not the stock one that I use. I installed a
>>>> tencentlife oil cooler kit a few years ago, and it uses a banjo
>>>> fitting that goes between the filter and the engine for oil send
>>>> and receive (thermostat in there, too). The stock filter is too
>>>> long to fit and he recommends a Bosch 3300, which I have been
>>>> using.
>>>>
>>>> But the last time I replaced the filter, when I switched from
>>>> winter to summer oil, the auto parts store was out of stock on the
>>>> Bosch, and they offered the Wix. I never heard of Wix, but the guy
>>>> said it was a good brand, so hey.
>>>>
>>>> Well, the mechanic was consternated by the shorter filter, said it
>>>> was the wrong one, and that the threads looked like pipe threads. I
>>>> picked up a new Bosch on my way over and took at look at the Wix,
>>>> comparing it to the Bosch, and the threads in the Wix looked pretty
>>>> poor.
>>>>
>>>> So I think I lucked out here. That high oil pressure was gonna
>>>> blow out something, I'm just glad that it was a $6 oil filter.
>>>> Otherwise, $75 for the work, nothing (other than subscription to
>>>> Triple-A) for the tow. It could have been a lot worse.
>>>>
>>>> Engine sounds fine, I hope no damage was done.
>>>>
>>>> And what's the lesson, kids? Don't skip maintenance. And distrust
>>>> Wix filters.
>>>>
>>>> -- Jack "Rocket j Squirrel" Elliott 1984 Westfalia, auto trans,
>>>> Bend, Ore.
>>>>
>
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