Date: Fri, 18 Jun 2021 11:49:32 -0500
Reply-To: Skip L <skiplaubach@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Skip L <skiplaubach@GMAIL.COM>
Subject: Re: Bump bump bump
In-Reply-To: <CAFdLW6=YZUYoHPQuUWTBrkW7=XGYQ8QjMQ9m=VS0mSwGhftHAg@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
Thanks Dan, Dan, and Stuart!
I will first lower pressure by 10%. Currently, pressures are at 50 psi
rears and 40 psi fronts.
If I isolate the root cause to tires, then I will be replacing these with
new.
Skip
On Fri, Jun 18, 2021 at 9:01 AM Dan N <dn92610@gmail.com> wrote:
> Also, for testing purposes, I'd suggest lowering the tire pressure by 10%
> to see if there's any difference. BFG tires have stiff sidewalls (stiffer
> than others) and when they get old they flex less. I can feel the
> difference when I switch from BFG to General Grabber AT.
>
> On Fri, Jun 18, 2021 at 6:40 AM Dan N <dn92610@gmail.com> wrote:
>
>> Yes, it could be the tire's temperature related issue. I have an ML430
>> SUV that gives small vibrations or harsh rides when the tires are cold...
>> After about 10 miles, it's smooth as nothing ever happened... and this
>> happens with new tires too. The sensation is similar to unbalanced tires or
>> flat spots.
>>
>> On Fri, Jun 18, 2021 at 6:27 AM Skip Laubach <skiplaubach@gmail.com>
>> wrote:
>>
>>> Thanks for the tire ideas! Trying to narrow things down. Tires are 14”
>>> BFG’s, maybe 8 years old, 30,000 miles.
>>>
>>> I’ll take a close look at the tires.
>>>
>>> Skip
>>>
>>> Sent from my iPhone
>>>
>>> > On Jun 18, 2021, at 7:39 AM, Dan Lamb <vanagongramps@gmail.com> wrote:
>>> >
>>> > Maybe tire has flat spot til warms up?
>>> >
>>> > Sent from my iPhone
>>> >
>>> >> On Jun 17, 2021, at 9:37 PM, Dan N <dn92610@gmail.com> wrote:
>>> >>
>>> >> Engine and transmission mounts?
>>> >>
>>> >>>> On Thu, Jun 17, 2021 at 6:55 PM Skip Laubach <skiplaubach@gmail.com>
>>> wrote:
>>> >>>
>>> >>> ‘84 Westy, new 944(?) CV’s.
>>> >>>
>>> >>> I have been using the Van as a daily driver for the last week (25
>>> min/15
>>> >>> mile commute). During the first 5 miles a noticeable bump, bump
>>> sound
>>> >>> eminates from the rear of the vehicle. Not sure if it’s the CV’s, an
>>> axle
>>> >>> bearing, or otherwise. Only occurs when the van is moving so don’t
>>> believe
>>> >>> it’s the engine, but maybe? The bump, bump sound kind of dissipates
>>> after a
>>> >>> bit of driving. Thought maybe others have experienced same? Please
>>> advice
>>> >>> and thanks! Long time subscriber/infrequent contributor (but that
>>> may
>>> >>> change).
>>> >>>
>>> >>> Skip (northern Illinois)
>>> >>>
>>> >>> Sent from my iPhone
>>>
>>
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