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Old 09 Oct 2010, 12:36 pm
jim beam
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Default Re: 1998 V-6 Accord EGR valve dismantle/disassembly.

On 10/09/2010 12:41 AM, Meatman wrote:
> On Oct 8, 2:36�pm, jim beam<m...@privacy.net> wrote:
>> On 10/08/2010 12:02 AM, Meatman wrote:
>>
>>> '98 Accord EX V-6. �Code PO401 - insufficient EGR flow. �TSB/retrofit
>>> exists for this involving drilling-over EGR port in plenum, installing
>>> sleeve, etc. �Done that part. �Here's the rest: �I removed and began
>>> DISASSEMBLING the EGR valve itself. �Yes, you read correctly. �I
>>> removed the 3(or 4?) small bolts and nuts that hold the metal mounting
>>> base to the upper electrical part in an attempt to COMPLETELY
>>> diassemble the valve into 2 basic pieces. �However the metal plunger/
>>> bypass ass'y connects the two portions and there is a high-heat metal-
>>> foil gasket in between...now damaged, obviously. �I either need to get
>>> this bitch all the way apart (I can't seem to) and replace the gasket
>>> OR find a suitable RTV (copper?) OR just replace the whole valve.
>>> Obviously I would like to reverse my disassembly and repair/replace
>>> the gasket. �So let's run with that. �Thanks. �Kevin.

>>
>> i'd cut your time losses and just get a new valve from a junkyard.
>>
>> egr valves can run very hot - the rtv gasket stuff won't cope. �they
>> don't usually need much more than a good internal scraping to get the
>> soot out. �you can do this without the disassembly you've done. �just
>> use some vacuum hose connected to the diaphragm opener to suck open the
>> valve pintle, then you can use a needle to remove the accumulation.
>>
>> --
>> nomina rutrum rutrum

>
> Fair enough. Now, how do I tear this thing down?


you don't. its assembly is a one-way process. once the plunger is in,
you can't get it out without breaking stuff. and since you can't get it
out, now the gasket is broken, that egr valve is shot.


--
nomina rutrum rutrum
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