Date: Mon, 29 Aug 2011 22:39:59 -0400
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: Follow-up odd noise on new gowesty engine
In-Reply-To: <4E5BF119.1070605@ucsb.edu>
Content-Type: text/plain; charset="US-ASCII"
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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