2.8 Hilux diesel rattle
Submitted: Sunday, Mar 26, 2006 at 14:27
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V8Diesel
Mate's got a 2.8l Hilux that has suddenly developed an engine rattle and is down on power. This was not a gradual thing, it suddenly happened whilst driving up a long
hill. It idles and runs, but does appear to be blowing some more black diesel smoke.
The engine was rebuilt approx 60,000km's ago by a reputable company and it has performed faultlessly up to now. There is no oil in the coolant, or vice versa either.
Any ideas? I was thinking along the lines of the timing belt skipping a tooth on the injector pump (if the 2.8's run a belt to the pump that is). The rattle does not sound 'rythmic' or knocking like a big end / dropped valve, it is a general noise that sounds like what I'd call a 'diesel rattle' which leads me towards injector pump timing.
To all the diesel / Hilux guru's out there, I'd appreciate any constructive suggestions.
Reply By: 120scruiser - Sunday, Mar 26, 2006 at 14:48
Sunday, Mar 26, 2006 at 14:48
Generally if the hilux skips a tooth on the belt it won't do it on the pump but on the crank gear and it will destroy the camshaft. It smashes the cam into about 4 pieces. The last one we saw destroyed the head.
It sounds as though it has cracked a piston skirt. This will cause a rattle and could happen suddenly.
I suggest you have it idle and crack the injector pipes one at a time to drop out each cylinder. If the rattle goes on a certain cylinder when you crack the injector line, this takes the power stroke off the cylinder, you will have isolated the fault.
Hope this helps
120scruiser.
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