RE: 4G6-MIVEC and 6G7/6B3-MIVEC

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RE: 4G6-MIVEC and 6G7/6B3-MIVEC

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Mitsubishi Forum >> Mitsubishi Models >> Mitsubishi Outlander >> RE: 4G6-MIVEC and 6G7/6B3-MIVEC

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RE: 4G6-MIVEC and 6G7/6B3-MIVEC - 3/11/2007 2:23:30 PM

Manybrews

Posts: 765
Joined: 5/23/2003
From: United States
Status: offline

quote:

ORIGINAL: solowalker

My dealer wants $450 for the 30,000 mile maint....
Now, since I do all my own Maint. for my cars, I will not have this done by my dealer unless the engine is running badly because of "out of spec" valve clearances....Unless you are an abusive driver, I can't see a reason for these valves to go so far out of spec. that you have to pay all that money for this adjustment procedure....however, changing the plugs may be a big hassle and I may have Vinnie down the street do that job...

One thing...by doing my own maint., I wonder how this affects the warranty? It doesn't define this clearly in the booklet.

abusive driving will have no effect on valve guide/seat wear.
chaning the plugs doesnt need to be done until at least 60k.
you can do your maintenence anywhere as long as you keep reciepts... and accept the fact that if you do something wrong (like drop a bolt down the intake) mitsu is NOT going to pay for it.

(in reply to solowalker)

Post #: 11

RE: 4G6-MIVEC and 6G7/6B3-MIVEC - 3/11/2007 7:13:00 PM

buzzfledderjohn

Posts: 17
Joined: 3/8/2007
Status: offline

I thought the days of valve adjustment were over. Don't most modern cars have hydraulic lifters that require no adjustment??

(in reply to Manybrews)

Post #: 12

RE: 4G6-MIVEC and 6G7/6B3-MIVEC - 3/11/2007 11:09:16 PM

solowalker

Posts: 15
Joined: 3/6/2007
Status: offline

Yes, I would think that if the Outtie is running like a champ, it would be best to keep a mechanic from digging into the valve train and adjusting the exhaust valves...screwing with a smooth running engine is the fastest way to start a chain of problems...
I have a Subaru Forester with 104,000 miles and it runs better now than when it was new...It never had the valve covers off.. ...If the Mitsu V6 is running poorly then and only then, will I have the exhaust valves adjusted.

(in reply to buzzfledderjohn)

Post #: 13

RE: 4G6-MIVEC and 6G7/6B3-MIVEC - 3/11/2007 11:35:40 PM

Manybrews

Posts: 765
Joined: 5/23/2003
From: United States
Status: offline

quote:

ORIGINAL: buzzfledderjohn

I thought the days of valve adjustment were over. Don't most modern cars have hydraulic lifters that require no adjustment??

due to the complexity of the valvetrain, manually adjusted valves are used. They make it lighter and much smaller.

many companies still use manually adjusted valvetrains, but as is the case with nearly all of them you will probably NEVER need to do anything with them.

(in reply to buzzfledderjohn)

Post #: 14