Date: Wed, 6 Oct 2010 16:08:20 -0700
Reply-To: Zach Hale <zach@ZACHHALE.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Zach Hale <zach@ZACHHALE.COM>
Subject: Re: Unusual vibration while accelerating
In-Reply-To: <00d101cb659b$58f0e670$6601a8c0@PROSPERITY>
Content-Type: text/plain; charset=ISO-8859-1
Wow thanks to all of you, especially Scott! I will let you know what I
come to find.
Zach
On Wed, Oct 6, 2010 at 2:13 PM, Scott Daniel - Turbovans
<scottdaniel@turbovans.com> wrote:
> There is nothing like actual visual inspection .
>
> the natural thing to do is start checking for ..
>
> 1. worn out rear rubber engine mounts ( 4 )
> 2. this one in particular, especially on a 2.1 ...the 3 bolts that hold the
> rear aluminum 'mount bar' ....
> ...it's on top of the rubber mounts, screwed to the rear of the engine
> case with three 10mm bolts..
> it's not that uncommon for those to be loose, and often with one broken off
> in the case.
> 3. front trans mount, either loose bolts or shot rubber mount
> 4. lower engine mounting studs ......I've seen one of those broken , though
> rarely.
> 5. CV joints ....easily can cause vibes if they're very dry and stiff or
> badly worn.
> 6. not likely to be rear wheel bearings but those should be checked too.
>
> let us know what(ever) you find !
> Scott
> www.turbovans.com
>
> ----- Original Message -----
> From: "Alistair Bell" <albell@SHAW.CA>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Wednesday, October 06, 2010 11:33 AM
> Subject: Re: Unusual vibration while accelerating
>
>
>> maybe, engine mounts broken or loose.
>>
>> Have a look at how much engine moves when reving engine, car parked
>> in neutral.
>>
>> and further, have handbrake on hard, car in 3 or 4th, helper in
>> driver's seat, and you looking at engine as helper lets out clutch
>> medium slow, and eventually stalls engine. That will put strain on
>> mounts.
>>
>> its just a guess, but not to hard to check out and discount/confirm.
>>
>> alistair
>>
>> On 6-Oct-10, at 11:06 AM, Zach Hale wrote:
>>
>> Hey all,
>>
>> I've noticed over the last 2-3 months in my 85 Vanagon when I have a
>> strong head wind, accelerating on the highway especially with an
>> incline that the car gets into a vibration that ends generally no more
>> than 10 seconds later either after I've gone over the hump or have let
>> off on the gas to strain the engine less. I don't want to assume it
>> has to do with something connected to the engine, but those are the
>> symptoms as far as I can reason. I'm writing in because now it's felt
>> like it has happened a couple times when going in the 30-40 mph range
>> just around town (normally hard to tell due to our wretched Seattle
>> streets). Note that this does not seem to be a symptom of driving at
>> low rpms as I've always been going at least around 2500 rpm when this
>> happens.
>>
>> 3500 miles ago I had new tires put on it (recently rotated), my power
>> steering rack replaced, and an alignment done.
>>
>> I'm not sure what to look into or check. Does anybody have any ideas
>> for what to suspect? Should it be cause for concern?
>>
>> Thanks!
>> Zach
>
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