Burnt Valves on my 2.0 litre Twin Spark - Alfa Romeo Forum
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Burnt Valves on my 2.0 litre Twin Spark

Hi Everyone,

Although Ive been a member for a while, this my first post.

I have recently found burnt exhaust valves on number two cylinder on my Spider. I have only just removed the head at this stage and the other valves "look" ok. Can I get away with just replacing the burnt valves or do I need to replace all of them including the inlet valves?

Looking forward to any advice.

Thanks.
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Are they seating properly? What was causing them to burn? If the rest are fine then there is no need to replace.


PS: Hello & Welcome.
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Hi EauRouge,

Thanks for your welcome message and reply.

I havnt got that far yet as its going to be 40' Degrees C here today so Im not going to do anything (ha ha thats what I normally do anyway)
I was thinking the same thing about why Its burnt? I have always used 98 octane and changed the oil and filter every 5000klm. Ive had the car four years now. Its got 135,000klm and its a 98 model. Maybe thats the life cycle of these things??
I guess the next step is to strip the head and check all the valves and valve seats... just in case.
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Member car:

GTV 2.0 TS

I had a burnt valve in the TS, replaced just the one valve, re-seated all the valves and it seems to be working just fine...

I would suggest you check the shape of the lobes on the exhaust cam though, the 2 end ones were almost circular on mine!
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Chris155
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Quote:
Originally Posted by converted1 View Post
Hi Everyone,

Although Ive been a member for a while, this my first post.

I have recently found burnt exhaust valves on number two cylinder on my Spider. I have only just removed the head at this stage and the other valves "look" ok. Can I get away with just replacing the burnt valves or do I need to replace all of them including the inlet valves?

Looking forward to any advice.

Thanks.
You only need to replace the ones that don't grind in satisfactorily.

See one of my threads here if you're unsure what you should be doing...

Alfa Romeo forum: Operation Blue Snot

It's a v6 but I've shown more detail in this thread when it comes to actually regrinding the valves.

http://forum.alfa156.net/forum/forum...058&KW=rebuild

Last edited by Chris155; 15-01-13 at 21:20.
 
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