Question about 1992 Toyota Land Cruiser

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Engine knocking. I just bought a 1992 Toyota landcrusier Turbo Diesel Prado SX and it just started knocking on the Right side of the engine only on low RPM. When I am going over 50-60 kmph it stops. But it Just started knocking during idling. This is a rhythmic knock ...not a tap or slap. Anyone got an idea to help guide me when I take to the shop?

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Diesel knock at low RPM and Idle is usually an injector that has a leaky seat or has a needle that has jammed up. The knock can normally be heard quite clearly as being at the top of the motor, run the motor at idle and loosen the injector pipes one at a time if the knock disappears on one pull that injector and have it checked.
If one injector is faulty the others may soon go, better to have them all done at the same time.

Posted on Aug 02, 2009

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Hi,my 92 prado started making a knocking sound recently,we couldn't pin it down to one spot in the engine.
The knocking was constant at low revs and then disapeared.
Turned out to be the tourque converter knob had bust of and eventually destroyed the fly wheel and the transmission pump.
Definatley check under top cover and also drop off the sump to check for loose nuts etc.
hope this helps.

Posted on Jul 08, 2009

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