Despite a few well known issues, it might be the best engine JLR ever put in a vehicle.
Interesting
So in your opinion, the extra pep is way worth the trade-off of reliability of the 4.4/ 4.2?
I only spent 10 minutes in an LR4 test driving one, but it was definitely much smoother revving and racy...more like a sports car engine.
No way.Despite a few well known issues, it might be the best engine JLR ever put in a vehicle.
The tensioner blades have a round button that contacts the tensioner. The old style was two flat surfaces and the end of the tensioner piston would dig into the blade and make a lot of noise. The new tensioners are more robust. I think the plunger piston area is larger diameter. So with the same oil pressure it should apply mor force.Is it true JLR changed and updated the chain guides around 2012 and, if so, did that make a meaningful difference? Assuming you're willing and able to keep up with recommended maintenance, what's the reliability like north of 100K?
No way.
Then it’s had a tensioner job. This thing is expensive. It gets hot it’s a damn boat anchor. When I was in my 20’s I would have loved this big piece of shit. I would have been doing them all the damn time. I’m good at this thing and I’m 60 damn years old. I’m good at it cause it’s broken all the fucking time.Second best? What's your vote?
Mine has over 160k with no known tensioner job. Sounds and runs great.
Any visual indicator to verify it’s been done? Different color RTV or something along those lines?Then it’s had a tensioner job. This thing is expensive. It gets hot it’s a damn boat anchor. When I was in my 20’s I would have loved this big piece of shit. I would have been doing them all the damn time. I’m good at this thing and I’m 60 damn years old. I’m good at it cause it’s broken all the fucking time.
I bought my first house putting camshafts and main bearings in the Cadillac HT 4100. I built the biggest part of my IRA doing Quad 4 head gaskets for Oldsmobile.
All of them are shit. That’s why we know them so damn well. Not many guys know the inside of a 4.2 supercharged engine. Because it didn’t break. I’m struggling with a 4.2 cam timing issue right now. Having to pull it apart a second time. But after all this time with it I still haven’t done enough of them to be proficient. Not because it’s a piece of shit. Because it’s that good.
151k on mine without a tensioner job. The chain (one you can look at through the filler hole) is very tight.Then it’s had a tensioner job.