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I don't usually ask for help

Transit Mk3, 4 & 5(smiley front) Forum. All Transits 1986 - 2000

I don't usually ask for help

Postby Chug » Tue Jan 14, 2025 8:42 pm

Typically when I needed to get on the forum earlier I couldn't connect! usually have no trouble.

Anyway as you can guess from the title I need some help, 2.5di driving normal, going up a hill in busy traffic and van was slowing more than I thought it should near the top, but I put it down to it maybe being steeper than it looked anyway just over the top the hill and the engine starts sounding louder, I look in the mirror and see more smoke than there should be :shock: I started indicating to pull over and the oil light came on so I pulled up quick and stopped the engine, got out opened the bonnet to find oil all down the lower left side of the engine and saw oil dripping under the van, pulled the dipstick to find it was double what it should be :shock:
I thought it can only be water so I checked the coolant reservoir and it was empty, phone a friend time! got towed back just before dark and drained the sump of lots of water and oil, put some oil back in but no water and tried to start, fired up ok, oil light went out and didn't sound too bad but hard to really tell as the air cleaner was off and making a loud noise, but I gave the throttle a gentle quick stab and she seemed to rev up ok but then I had to switch off coz my mate said oil was coming out under the van. Then both torches ran out of battery and both our phones were getting low as well so we gave up for today. :cry:

But I have coolant getting into the oil and an oil leak somewhere (think lower left side of engine) , I've not been near the inside of a 2.5di transit engine for a good few years and my memory aint what it was, SO other than the head gasket, is there any core plug or anything that could let coolant into the oil, and what other than oil filter or oil pressure switch could cause oil leak lower left hand side of engine?

I can't think of anything myself, and now my head hurts. :(
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Re: I don't usually ask for help

Postby Mislaid » Tue Jan 14, 2025 10:39 pm

Left side of engine or left side as you look at it from front i.e. the right side of engine? Thought better clarify first. :wink:

Head gasket would be my first suspicion.
Could oil leak be running down side of engine from the gasket?
Other obvious leakage points are the vacuum pump hose, sump, crank seals
If the fire rings are still intact then there should still be compression, therefore fires up ok
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Re: I don't usually ask for help

Postby Chug » Tue Jan 14, 2025 10:58 pm

sorry head full o shite, left looking from the front, the side with oil filter and oil pressure switch, it was dry on the block a good few inches below the head and dry towards the front of the engine, I did manage to look at the oil pipe on the vacuum pump before we lost light and that was pretty dry. I've had a quick look at another engine I have and cannot see anything on that lower side of the block besides what we've mentioned that could leak, except the sump, so I plan to clean off the oil tomorrow and see if there is any thing obvious, but still debating about head gasket. :roll:
1991(J) twin wheel tipper 2.5tdi
1994(L) twin wheel tipper 2.5di
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Re: I don't usually ask for help

Postby Mislaid » Tue Jan 14, 2025 11:48 pm

Only other thing that comes to mind is if there is a retrofitted heat exchanger oil cooler?
Common failure that initial suspicion points to the head gasket
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Re: I don't usually ask for help

Postby dumper » Wed Jan 15, 2025 1:56 am

Yes thinking the same as you chug other possibilities maybe cracked head or block never had a di with one unlike the Perkins /had a porous bore but that was on a York after a rebore /the early di used to crack pistons but you wouldn’t oil and water to mix/the only other thing the gasket and o ring between the block and front alloy plate can’t remember if there is any core plug there as well
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Re: I don't usually ask for help

Postby meerkatmag » Wed Jan 15, 2025 11:13 am

I get a small oil seep from under cylinder head left side. I think under boost it's lifting head a tiny amount. Perhaps yours is doing this but worse. I always assumed my head bolts are weakened or slightly loose. One day I'll have to do new gasket and bolts.
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Re: I don't usually ask for help

Postby MinorMatt » Wed Jan 15, 2025 12:40 pm

If its a TD it should have an oil cooler fitted between the oil filter and the block - oil and water can mix there (although never heard of it on a DI) other than that the only other realistic option is the head gasket - (or a cracked block/head - but thats less likely).

Could the "oil leak" be a diesel leak from the pump washing stuff off or a leak from the HG/Rocker cover running down the side of the engine?
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Re: I don't usually ask for help

Postby MinorMatt » Wed Jan 15, 2025 12:41 pm

oh and what colour smoke?
Lucas Laser 2000/IDS
95 Pre Production DRW TD Highcube
95 Hallmark
96 150 100PS LWB Hi-Top
96 Autosleeper Duetto
06 Mk7 (scrap)
09 140PS T330S 2.2

Gaffa tape is like the force, it has a light side, a dark side, and it holds the universe together
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Re: I don't usually ask for help

Postby Chug » Wed Jan 15, 2025 2:35 pm

I've found the oil leak, it has a hole in the block behind the starter! But still starts and runs on three cylinders without knocking! Started taking engine out already, I have another that was running ok but stood a few years, but I checked and it still turns ok and not seized , so hopefully will run. I'll try and get a photo of the hole and video of it starting/running later.
1991(J) twin wheel tipper 2.5tdi
1994(L) twin wheel tipper 2.5di
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Re: I don't usually ask for help

Postby MinorMatt » Wed Jan 15, 2025 3:49 pm

Hole in the block is very odd!!

While your in there - I have a TD conversion kit available :lol: :lol:
Lucas Laser 2000/IDS
95 Pre Production DRW TD Highcube
95 Hallmark
96 150 100PS LWB Hi-Top
96 Autosleeper Duetto
06 Mk7 (scrap)
09 140PS T330S 2.2

Gaffa tape is like the force, it has a light side, a dark side, and it holds the universe together
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Re: I don't usually ask for help

Postby Chug » Wed Jan 15, 2025 8:35 pm

IMG_20250115_103144.jpg


IMG_20250115_103135.jpg
You do not have the required permissions to view the files attached to this post.
1991(J) twin wheel tipper 2.5tdi
1994(L) twin wheel tipper 2.5di
Chug
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Re: I don't usually ask for help

Postby Chug » Wed Jan 15, 2025 8:49 pm

very odd indeed considering it didn't make any noise, I thought I would have heard something when that happened or after and even today it ran, albeit on three, but it ran and revved without any noticeable extra noises. A short video to follow......
1991(J) twin wheel tipper 2.5tdi
1994(L) twin wheel tipper 2.5di
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Re: I don't usually ask for help

Postby Chug » Wed Jan 15, 2025 8:50 pm

1991(J) twin wheel tipper 2.5tdi
1994(L) twin wheel tipper 2.5di
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Re: I don't usually ask for help

Postby Chug » Wed Jan 15, 2025 9:05 pm

Thanks Matt, I do have a turbo engine that I've fitted a brand new bosch pump to, it still needs injectors and an exhaust downpipe but its buried in a garage and I aint got no transport atm, so fitting the spare engine I have here works best for me for now as I need it for work asap or I'll get behind and have to reschedule customers.
1991(J) twin wheel tipper 2.5tdi
1994(L) twin wheel tipper 2.5di
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Re: I don't usually ask for help

Postby Mislaid » Wed Jan 15, 2025 10:51 pm

Chug wrote:
IMG_20250115_103144.jpg


IMG_20250115_103135.jpg

Holey fek! Literally!
That's a new one on me.
Duratorq hell yes but a DI, first time i've seen that.
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