I mixed up my valves...

[sypherzero]

So, for starters, I'm a tard. I know... I have a box that I punched holes in, and numbered them, to keep the valves organized. Well, our outside cat decided to become an inside cat and guess what he knocked over? So now they're all mixed up. I can tell exhaust from intake, but what do I do know? Is there anything I can do, or do I need to buy new valves?

Edit: I guess what I'm basically asking is are they 100% cylinder specific?

 

[sidewaystsi]

Im no machinist but i dont think it should matter for the most part as they valves rotate and whatnot.If your real concerned about it you could get a can of machinist dye (i forget the name for the stuff)paint the valves and see if they seal in the seats.

 

[ed1380]

Intake and exhaust valves will be different size so you won't mix those up.

Even if they weren't mixed up, I'd recommend lapping them anyways. That way they have a good seal.

 

[BogusSVO]

You have 2 sizes of valves.

The intakes will have the larger valve head than the exhaust.

Since they got all mixed up, I would take them to a local machine shop and have the valve faces ground.

This will put a new face on the valve and then lap the valves in the seat you want them.

Having the valves ground should not be much, a couple dollars per valve.

 

[RvlutionMtrsprt]

I'm gonna yo out on a limb and guess that you've never lapped valves before. If that's the case, I would take the head and valves to a machine shop and have them do all the work for you.

 

[BogusSVO]

I'm gonna yo out on a limb and guess that you've never lapped valves before. If that's the case, I would take the head and valves to a machine shop and have them do all the work for you.

If thats the case.. This should help.

http://www.dsmtuners.com/forums/articles-engine-fuel/341636-how-lap-valve.html

 

[sypherzero]

I'm gonna yo out on a limb and guess that you've never lapped valves before. If that's the case, I would take the head and valves to a machine shop and have them do all the work for you.

Hmmm.... That only sounds slightly condescending. I prefer to learn with actual hands on experience, when its something I can handle on my own. Thanks for your input.

If thats the case.. This should help.

http://www.dsmtuners.com/forums/articles-engine-fuel/341636-how-lap-valve.html

Thank you Bogus, I appreciate it. Between you're help on here and Jafro on Youtube, DSMers everywhere have good, reliable resources to refer to.

 

[BogusSVO]

Glad to help!

Once you have the valves lapped and back in with the spings installed, do this to make sure you have a good valve seal.

http://www.dsmtuners.com/forums/newbie-forum/420313-how-fluid-test-4g63-cylinder-head.html

Also you may want to book mark this page...
http://www.dsmtuners.com/forums/articles-miscellaneous/450429-bogussvo-how-links-other-info.html

It is also linked in my sig line.

 

[sypherzero]

I know I said this was resolved and all.. But when I started lapping the valves, I discovered that a few of the valves are pitted on their seats. The head itself is fine though. What causes this? And are they safe to use?

 

[BogusSVO]

Wear and mating of the valve to the seat.

Go have the valves gound, so they have new shiney faces on them, then lap them into the seat.

 

[sypherzero]

Wear and mating of the valve to the seat.

Go have the valves gound, so they have new shiney faces on them, then lap them into the seat.

A semi-local shop to me does them at $3 a piece, and that adds up to $48 and approx $10 in gas each way totals $68. For just $50 more, I can get a new set of OEM valves or a set of std. size SS valves from Engnbldr. Do you, or anyone have any experience with thei Engnbldr valves?

 

[BogusSVO]

The OEM valves you speak of, If they do not have the 6T on them, I will reccomend that they not be used in a turbo engine doing more than stock levels.

The Engnbldr Valves, yes I have used lots of them.