Valve Stem Seals

king_panther

Gettin' tanked
Location
New South Wales
First Name
Brad
Drive
2012 VW Caddy 1.6TDI 7-Speed DSG. Still crappy DSG.....
I hope I have that thread title spelt correctly ?

Anyways, I get a fair amount of white-ish smoke upon startup of ignition which does have an odour of oil in it.

I've been told that my valve stem seals are shot which is causing oil to leak into said valves when the engine is off.

The smoke I'm told is that oil being blown off when the engine is started up again.

Is this something to be expected ? Can the valve stem seals be replaced ?
I'm not noticing any real rise in my oil consumption even allowing for the huge distances I travel in the Legnum.
 

SiliconAngel

1 AYC Bar
Location
Perth, WA
First Name
SA, Trevor
Drive
'99 Legnum VR4 Black MT
Yep, can definitely be replaced. Just be aware the seal for inlet and exhaust valves is different - inlet valve stem seal part number is MD184303, exhaust valve stem seal part number is MD302338.
 

Spetz

Idling at the Lights
Location
ACT
First Name
Spetz
Drive
MIVEC
Hi guys, sorry for bumping such an old thread...

Does anyone know if the valve stem seal part numbers quoted above are used in other Mitsubishi engines?
This might make finding aftermarket ones easier.

Also what known aftermarket options are there currently for the 6A1X?
I have so far found the Meeks ones - Can someone comment on quality and material compared to OEM?
An eBay sellers sells the NPower brand - Again, comments on quality and material compared to OEM?

Are OEM ones made from viton rubber if anyone knows?

I've replaced as a DIY on my 2003 Verada and went from using 500ml of oil per 1,000km to no measurable oil use per 10,000km oil change interval using FelPro seals.
I researched and found these to be as good as it gets but cannot find them for the 6A1X series motors hence why I was hoping other Mitsubishis that were sold in the US used the same part number.


OEM ones are about $140 so not much more than aftermarket ones, and my priority is to buy the best ones available so advice would be appreciated
 

6A13TT TYPE S

3 AYC Bars
Lifetime Member
Location
New Zealand
First Name
Adam
Drive
1999 Legnum VR4 Type S
Just buy OEM. Best quality. There are aftermarket options out there but I'd use OE stuff any day of the week.
 

Spetz

Idling at the Lights
Location
ACT
First Name
Spetz
Drive
MIVEC
Is OE necessarily the best though?
Since Mitsubishi engines are notorious for leaking valve stem seals, could it be due to the material used, i.e., maybe nitrile is used rather than viton rubber?
 
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