2.5 tdci knock
#1
2.5 tdci knock
Hello I've just bought a 2007 tdci 2.5 ranger and it has a constant knock, I don't think it's bottom end, I'm hoping it's a tappet as the nock is there all the time, idle, under load, and on deceleration, are they hydraulic tappets or adjustable? Any help would be appreciated
#2
We, in North America, don't get to buy those here, which is sad.
4-door Ranger with turbo diesel would be a nice ride.
They do have hydraulic tappets, according to parts list.
Never work on that engine but on other engines if you disconnect 1 fuel injector at a time and then listen for the knock, if it almost goes away then it is a connecting rod knocking on the disconnected cylinder, the "knock" sound is from that cylinder firing, rod slapping crank, so when it is not firing the noise is gone.
Valve train "knock" is usually described as a "tap"
Exhaust manifold leak is sometimes described as a knock
4-door Ranger with turbo diesel would be a nice ride.
They do have hydraulic tappets, according to parts list.
Never work on that engine but on other engines if you disconnect 1 fuel injector at a time and then listen for the knock, if it almost goes away then it is a connecting rod knocking on the disconnected cylinder, the "knock" sound is from that cylinder firing, rod slapping crank, so when it is not firing the noise is gone.
Valve train "knock" is usually described as a "tap"
Exhaust manifold leak is sometimes described as a knock
#4
#5
Got to the bottom of the problem, turns out it's a small end ticking/knocking, think this truck has had a hard life from the previous owner as took a gamble and bought it with no records on service history, hopefully this will be the only major problem, replacing all four small ends, big ends, and piston rings
#10
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