Date: Tue, 30 Aug 2011 01:21:37 -0700
Reply-To: Larry Steffen <larry@STRATOFEX.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Larry Steffen <larry@STRATOFEX.COM>
Subject: Re: Follow-up odd noise on new gowesty engine
In-Reply-To: <BAY152-ds5A2A0D8CA88C8F9116E4DA0170@phx.gbl>
Content-Type: text/plain; charset=us-ascii
And I also hear a clunking noise after new Van Cafe headers installed which baffled me. I thought it was my new shocks but now see it is the new Van Cafe headers. I have pulled the headers off and van has been sitting while I visualize the premo stainless headers. The cost of maintaining a classic Westie keeps climbing.
Sent from my iPad.
On Aug 29, 2011, at 7:39 PM, Dennis Haynes <d23haynes57@HOTMAIL.COM> wrote:
> Yes I have been there a number of times. So far the fix has been to replace
> the rear mounts with OEM. The aftermarket ones still seem to have the pipe
> too close. Still mostly a pipe bending problem. I guess they got a bit
> sloppy with that bend radius.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> John Goubeaux
> Sent: Monday, August 29, 2011 4:06 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Follow-up odd noise on new gowesty engine
>
> Guys,
>
> This is an attempt to resurrect the discussion on what the cause of a rear
> exhaust header hitting the rear engine mount bar actually is.
> Initially I suspected having replaced the engine mounts ( that were maybe
> too thick) of the cause. I have since talked to one other person who also
> replaced their exhaust headers with the Danish aftermark model ( also
> purchased from VanCafe) and he IS having the same problem where when the
> engine's movement causes the pipe to hit the rear engine mount bar. It
> appears that maybe there was a "bad" batch of these pipes that do not fit
> quite right and the clearance between the pipe and the bar is too small
> causing the pipe to "clunk" up against the mount bar ?
>
> Has anyone else seen this ? I also suspect that eventually the pipe is going
> to crack from the clunking contact but not sure.
>
> -john
>
>
> On 5/31/2011 5:11 PM, John Goubeaux wrote:
>> I too suspected the rear engine mounts, however I replaced them with
>> the new engine. I also got an opinion from another mechanic who
>> indicated that everything looked like it was in order. Also, because I
>> had another bad pipe and and a poorly cast collector knuckle ( all
>> same aftermarket brand) I had to return I suspected the pipe bend.
>> Maybe the new engine mounts are thicker, this would account for the
>> rear engine mount bar being closer I think ? They did look a lot
>> beefier than the old ones they replaced ?
>>
>> -john
>>
>> On 5/31/2011 4:52 PM, Jake de Villiers wrote:
>>> John, I have had the Danish exhaust pipes on both my 1.9 and 2.1 with
>>> no issues at all, so I'd tend to look for worn or broken engine
>>> and/or transaxle mounts.
>>>
>>> Jake
>>>
>>> On Tue, May 31, 2011 at 3:35 PM, John Goubeaux <john@ucsb.edu
>>> <mailto:john@ucsb.edu>> wrote:
>>>
>>> So , just to follow up on this thread I determined that the "clunk"
>>> noise I ( sometimes) hear when starting or stopping the engine is the
>>> rear exhaust header hitting the rear engine mount bar. I
>>> replaced the
>>> exhaust headers on the new engine (after marker Danish ones) and
>>> along
>>> with poor quality issues ( one of them had a cracked weld at the
>>> flange)
>>> it looks like the bend on the rear pipe comes too close to the rear
>>> engine mount allowing it to hit the mount bar. Not sure if I can
>>> get a
>>> muffler guy to fix this or not but at least i know what is
>>> causing it.
>>>
>>> I'm surprised no one else has had this problem as well, as I
>>> suspect a
>>> lot of people are using the aftermarket pipes being sold. These were
>>> purchased from Van Cafe.
>>>
>>> -john
>>>
>>> Guys,
>>>
>>> I have roughly 500 + miles on a new GoWesty 2.2 engine that I
>>> just
>>> installed and am curious about an odd noise it makes, but
>>> only when it
>>> is warm, eg been brought up to temp. On startup, ie cranking,
>>> just
>>> before it starts and when turning of the engine there is a
>>> small clunk
>>> noise. Almost as if before and after ignition takes place a
>>> compression
>>> sound as the engine comes to a stop. The engine runs fine and
>>> there are
>>> no odd noises while running only at start and stop. I have
>>> not been able
>>> to listen to it back at the engine compartment yet but am
>>> planning to do
>>> so. Nothing is loose that can explain this and maybe it is a
>>> normal
>>> sound and is compression on these engines? Oddly it only
>>> exhibits this
>>> noise when hot though. Could it be a loose head? Sticking valve?
>>>
>>> Logically I am being very careful to break it in properly and am
>>> listening and watching its behavior carefully and want to
>>> ensure that
>>> this is not something that is going to end up being an issue
>>> down the
>>> road.
>>>
>>> Any ideas ?
>>>
>>> -john
>>>
>>>
>>>
>>>
>>> --
>>> Jake
>>>
>>> 1984 Vanagon GL 1.9 WBX - 'The Grey Van'
>>> 1986 Westy Weekender/2.5 SOHC Subie - 'Dixie'
>>>
>>> Crescent Beach, BC
>>>
>>> www.thebassspa.com <http://www.thebassspa.com>
>>> www.crescentbeachguitar.com <http://www.crescentbeachguitar.com>
>>> http://subyjake.googlepages.com/mydixiedarlin%27
>>>
>>
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