Likelyhood of a valve job Log Out | Topics | Search
Moderators | Register | Edit Profile

DiscoWeb Bulletin Board » Message Archives » 2003 Archives - Discovery Technical » Archive through February 02, 2003 » Likelyhood of a valve job « Previous Next »

  Thread Last Poster Posts Pages Last Post
  ClosedClosed: New threads not accepted on this page        

Author Message
 

an
Posted on Friday, January 03, 2003 - 01:29 pm:   Edit Post Delete Post Print Post

I have a DII and keep hearing about vavle jobs. I thought Land Rover fixed this problem? Is this a common occurance in the DIIs? Does this seem to happen before certain mileage? I understand some things on vehicles will go bad but it seems to me this is all too common of an occurrence with these vehicles. I can do basic maintenance but this is beyond my expertise and I certainly don't want to pay the ••••••••••• for one when I am still covered under warranty. Anyway to make it look like you need one?
 

gp (Garrett)
Posted on Friday, January 03, 2003 - 01:31 pm:   Edit Post Delete Post Print Post

you shouldn't have any issues with the D2. most of the valve issues are with the D1's around '96-'98.
 

Al Oliveira (Offroaddisco)
Posted on Friday, January 03, 2003 - 01:39 pm:   Edit Post Delete Post Print Post

Garrett seems to not own a D2 :)

I had mine done at 38k or 40k miles. I'm pretty sure others here have valve problems with their D2's too. There was a poll running on the Disco2 yahoo list that was tracking the numbers.
 

Randall Smith
Posted on Friday, January 03, 2003 - 02:07 pm:   Edit Post Delete Post Print Post

What is "the Disco2 yahoo list"?
 

Scott R.
Posted on Friday, January 03, 2003 - 02:10 pm:   Edit Post Delete Post Print Post

I just had one at 37K on my 2000 D2. The check engine light was coming on once in a while then turning off in a day or two, I thought fiddling around with the gas capped helped. Had it checked, they found a misfire on a cylinder and replaced the spark plugs. This helped for a week, then the light came on again. They did a valve job, covered by warranty.
 

todd slater (Toddslater)
Posted on Friday, January 03, 2003 - 02:16 pm:   Edit Post Delete Post Print Post

40k no valve job yet...rockers (both sides) done at 15k. Maybe its time to pull the plugs and read the tea leaves :)
 

Al Oliveira (Offroaddisco)
Posted on Friday, January 03, 2003 - 02:17 pm:   Edit Post Delete Post Print Post

The yahoo list can be found at http://groups.yahoo.com and search for disco2owners

Be warned that you'll get hammered with popup adds on yahoo groups but there is goor information on the list.
 

gp (Garrett)
Posted on Friday, January 03, 2003 - 02:17 pm:   Edit Post Delete Post Print Post

damn. your trucks suck too? i was under the impression that the D2's were free of this issue. or are you guys just pansies and complain so much that they do it fearing that you will eat all their scones in the waiting area? :)
 

Al Oliveira (Offroaddisco)
Posted on Friday, January 03, 2003 - 02:21 pm:   Edit Post Delete Post Print Post

lol... mine started around 15k miles... at least thats when they started replacing cables and coil packs. Until I took it to a better shop that just replaced the heads. I've been good for about a year but I just took it in today for an SES light. I'm just crossing my fingers now as I know there were a couple people who had multiple issues with valves :)

For now I have a cute Freelander but it's not a cute as Greg's D2
 

Leslie N. Bright (Leslie)
Posted on Friday, January 03, 2003 - 03:16 pm:   Edit Post Delete Post Print Post

Garrett,

The D2's 4.0 is pretty much the same as the '96-'99 D1's 4.0...

It seems as though the '94-'95 3.9 engine wasn't as susceptible to the problem, but the 4.0 does. It seems to be a combination of age and mileage. Older 4.0 Discos, '96 and '97, showed the problems first, but my '99 started to show symptoms when I had cranked the miles onto it. As these things age and rack up more miles, I'm expecting to see the newer ones contnue to have the problems.

As far as I can tell, use quality oil, change oil frequently, use quality high-grade gas, will help.. long times between cheap oil changes on regular-grade gas-driven 4.0 Rovers with higher miles will probably have problems sooner....

It also seems like it starts to develop about the time these things go out of warranty, or thereafter, for the most part... sounds bad to say that you're lucky if it starts earlier so the dealer can fix it, but....

Don't get me wrong, just because someone frequently changes their oil and uses good gas doesn't mean that they may not have problems; or someone who stretches time between oil changes and runs regular gas may run for many many miles and not have problems... it's not an exact correlation, just my observations.....

FWIW....

-L
 

Will Roeder (Will_Roeder)
Posted on Friday, January 03, 2003 - 03:53 pm:   Edit Post Delete Post Print Post

So, in the D2s, what kind of preventative maintanence can be done to avoid needing a valve job? Ive got a 4.6 in my D2, do the 4.6s even have the problem?
In my 96D1, i had a valve job at 60K then again around 65K

In my 98 D1, ive got no problems @ 72K miles....
 

gp (Garrett)
Posted on Friday, January 03, 2003 - 05:09 pm:   Edit Post Delete Post Print Post

well i know the engines are just about the same, but i thought they were using different valves in the D2 and overcoming the carbon build up issue.
well i guess this just sucks for everyone. :(
 

Randall Smith
Posted on Friday, January 03, 2003 - 06:37 pm:   Edit Post Delete Post Print Post

Very interested in this exhaust valve because I plan to keep my RRC forever, and maybe a 4.6 one day. Who wants a 4.0/4.6 engine if it only lasted 60K miles? My 3.9 has 127K on it with no internal problems at all. Would say that it's the best running engine over 100K that I have owned.

And by utilizing my tremendous powers of observation, and my personal connection with the Rover God, I have concluded that it is an ECU programming problem. My thinking is that if I put a 4.0 engine in my RRC with the CUX ECU, that I would never have the exhaust valve problem.

My suggestion is to reprogram the ECU.(I have three different programs for mine) But it is not practical to prove that the program is the culprit in regards to the exhaust valve problem.

Here is a way to test this theory(that the real problem is a bad program for NA 4.0 engines). Will start a new thread subject: "If you own a 4.0 engine outside of North America answer this"

Randall
 

Jay Hobbs (Jayxd)
Posted on Friday, January 03, 2003 - 10:02 pm:   Edit Post Delete Post Print Post

D2s aren't immune to the valve problem. My wife's 2000 D2 had it done under warranty around 36K. We just bought it but I got to look in the service file and noticed that. My understaning is that all 4.0/4.6 engines are prone to eventually having valve issues and the best way is to put your foot into it every now and then and use additives to keep carbon buildup to a minimum. I've also heard that in the UK and other places there aren't valve issues so LR blames US gas. True or not I don't know but that is what I have gathered from talking with various people.

Topics | Last Day | Last Week | Tree View | Search | User List | Help/Instructions | Program Credits Administration