styleruk
Active Member
Thought I'd come back to this chat. Planning a loooong trip for 2026, so between now and then I will need to solve this tickover issue, otherwise, I'm just gonna swap the engine out or do something radical like fit a V8 and be done with it.
After I've got my classic car off the ramp and stripped my motorbike, I'll have a couple of weekends spare to put the LR back on the lift. I've listened to the people talking about vacuum leaks and can't find any in the servo or pipes, however, what's to say the inlet manifold is not sealed properly. So maybe, just maybe I'll take the inlet manifold off next and make sure there's not a leak there somehow.
Would a leak at inlet cause this kind of running?
(Sorry, I'm hear until it's fixed)
After I've got my classic car off the ramp and stripped my motorbike, I'll have a couple of weekends spare to put the LR back on the lift. I've listened to the people talking about vacuum leaks and can't find any in the servo or pipes, however, what's to say the inlet manifold is not sealed properly. So maybe, just maybe I'll take the inlet manifold off next and make sure there's not a leak there somehow.
Would a leak at inlet cause this kind of running?
(Sorry, I'm hear until it's fixed)
You could try spraying some brake cleaner or easystart around the edges of the inlet manifold to see if the revs change, i.e. go up at a certain point.
Quicker and easier, maybe than taking the manifold off.
styleruk
Active Member
Yes, probably try that first. Tentatively spray brake cleaner near the hot manifold stuff. Never done that before, I'm assuming a tiny amount and listen for lifts
Not too tiny!
And just make sure none goes in the air filter!!
But yes, if any of the highly volatile product gets into the cylinder(s) you can expect the revs to pick up a bit.
styleruk
Active Member
only time I've done that is when I ran out of juice in my mercedes motorhome, was stuck in the middle of nowhere with a single can of diesel, so I sprayed brake cleaner directly into the intake as my wife cranked it. Man it revved high and scared the crap out of me...good stuff that, got me the 5miles to a station.
And leaves me wondering why you hadn't put 5 miles worth of diesel in the tank before that!
But good for you!!
A while back there was a time when you couldn't get diesel easily, even on Autoroutes, due to a tanker drivers strike or summat. so filled two jerrycans and topped up when I could. (We were driving the 550 miles to our place. ) Got so bogged down trying to do mental arithmetic to see whether we could make it without refuelling that I missed a turning off the autoroute and ended up nearly in Chartres.
Still made it though.
They say that when 2cvs came out old farmers used to drive around with an empty beer bottle to put petrol in if they ever ran out.
styleruk
Active Member
To explain, it was showing 1/4 tank still when it ran out, probably a blockage, but at the time I thought the gauge failed and I was empty. A good service after revealed no issues. Suffice to say, we never let it get near 1/4 tank any more....in case. But I do have 2 cans of easy start in a box under a seat in case.And leaves me wondering why you hadn't put 5 miles worth of diesel in the tank before that!
But good for you!!
A while back there was a time when you couldn't get diesel easily, even on Autoroutes, due to a tanker drivers strike or summat. so filled two jerrycans and topped up when I could. (We were driving the 550 miles to our place. ) Got so bogged down trying to do mental arithmetic to see whether we could make it without refuelling that I missed a turning off the autoroute and ended up nearly in Chartres.
Still made it though.
They say that when 2cvs came out old farmers used to drive around with an empty beer bottle to put petrol in if they ever ran out.
styleruk
Active Member
Definitely does not raise the refs when I spray (sparingly) around the carb or intake areas. I think I can rule out air leak.
styleruk
Active Member
One update I've noticed. Recently, when cold, it misses on number one cylinder for some time until it warms up. Still running rough, but even worse on 3 cylinders. I've pulled the plug and I'm getting power down the lead...I can still feel it. Plug is new, but will need to check it when I get someone to help me check.
Not much relevance to LRs, but a good running out of fuel story nonetheless...was heading south on the ice roads (ice road truckers) and had only just come off the last lake back onto the all season road that runs the last 70kms into Yellowknife when I ran out of fuel. Gauge showed that I had some, but apparently not (issue was a clogged transfer line between the tanks). I happened to be pulling a reefer so we (two or three others in the same convoy, all top notch blokes) begin trying to syphon some fuel out of the reefer's tank. I happened to be the one sucking when the diesel came through the hose so I got a mouthful, but spat it out, swore (just one swear word I promise. But then I only know one...), and carried on. We get my truck going and make a sat phone call to town to send a couple of jerry cans out to me so that I can make it back to Yellowknife. Two of the guys go on their merry way and one, Peter P, stays back with me to wait for the jerry cans.
It's the wee hours of the morning, pitch black, very cold, and although it's only 70km out of the city, 70km outside Yellowknife is genuine wilderness. There's no-one else around, and no-one would be. I'm parked behind Peter, we're each sitting in our own trucks waiting when my guts reacted to the mouthful of diesel I had been lucky enough to enjoy temporarily. I needed to poop, and I needed to do so NOW! I have emergency bog roll with me so I jump out and squat under Peter's trailer. It's dark, he doesn't even know I'm there, but I know that he's not going to go anywhere until I do, so it's not as though I'm about to be run over. He has no reason to go anywhere. I'm under there doing my thing when I hear air going into his brake chambers, he's released the brakes and that can only be to move. There I am with my trousers around my ankles, a pool of very liquid poop behind me and he begins to move. Emergency exit out from under the trailer and because no one can see me I just finish up and get back in my truck, guts now settled. Half an hour later the jerry cans turn up, I empty them and we're all on our way. In Peter's case none the wiser.
Just swop number 1 and number 4 plug, if the fault follows it, buy a new plug!
(A crack in the porcelain insulation is often not obvious)
If not swap leads see if it follows that ...
styleruk
Active Member
I did the lead swap, but it's not doing it at all now, so maybe a curve ball in my long term diagnostics. The next job is to clock the rockers and see if the cam is playing up on number one, eg, sticky valve or worn cam. Maybe it only does it when it's colder or something.
Just thought that missing on #1 was maybe an indication of something else. Little clues like that can sometimes point to something else.
Another little clue, is I'm losing water. I cannot find a leak...yet, that makes me think (and I'm getting ahead of myself here), a knackered head gasket maybe letting water into #1...possible? maybe I'm being too pessimistic here but I won't be happy until I've taken the engine apart and rebuilt her. I think that is going to happen as next year I'm going on a long trip and peace of mind will endeavour. I'll certainly have this wobbly tickover fixed before then, even if I bang in a crated V8 and think **** it.
Just thought that missing on #1 was maybe an indication of something else. Little clues like that can sometimes point to something else.
Another little clue, is I'm losing water. I cannot find a leak...yet, that makes me think (and I'm getting ahead of myself here), a knackered head gasket maybe letting water into #1...possible? maybe I'm being too pessimistic here but I won't be happy until I've taken the engine apart and rebuilt her. I think that is going to happen as next year I'm going on a long trip and peace of mind will endeavour. I'll certainly have this wobbly tickover fixed before then, even if I bang in a crated V8 and think **** it.
