slippry Posted February 11, 2009 Report Share Posted February 11, 2009 i think my oil pump is on its way out or the oil pick up? its making a ratteling noise at the front of the engine near the timing case it could be one of many things timing chain/tensioner oil pump oil pickup it drives fine and makes usual power, just when at lights the oil light flickers i just did a oil change and still doing same thing the motor is a 4k out of a early ke70 its had new rings and gaskit kit through whole motor what to do??? anyone selling a worked 4k? in adelaide Quote Link to comment Share on other sites More sharing options...
altezzaclub Posted February 12, 2009 Report Share Posted February 12, 2009 Did you do bearings when you did the rings? Big ends and mains? The oil light flickering is oil pressure getting down to 7psi, which is when it comes on. The lack of oil pressure can be three things, faulty sender (unlikely), bearings worn badly, or oil pump wornout. The rattle could be bearings or timing chain, but I'd say bearings seeing its with the oil light if you didn't change them. Does it rattle badly for the first 20seconds on startup, with the light on? Quote Link to comment Share on other sites More sharing options...
philbey Posted February 12, 2009 Report Share Posted February 12, 2009 The rattling is probably a symptom of low oil pressure, not a cause. Tensioner not getting enough pressure so the timing chain is rattling. Quote Link to comment Share on other sites More sharing options...
slippry Posted February 12, 2009 Author Report Share Posted February 12, 2009 The rattling is probably a symptom of low oil pressure, not a cause. Tensioner not getting enough pressure so the timing chain is rattling. yeah seems like low oil pressure only when idling for 10 secs or more, when the engine was done the timing chain and tensioner wernt done how do i change the timing chain? its only a single row chain Quote Link to comment Share on other sites More sharing options...
KE30_KE35_KE55 Posted February 12, 2009 Report Share Posted February 12, 2009 yeah seems like low oil pressure only when idling for 10 secs or more, when the engine was done the timing chain and tensioner wernt done how do i change the timing chain? its only a single row chain I had a 4k with a swarf under the oil pump bypass valve once that was doing that, the second possibility the timing cover is being ground away slowly by the timing chain, the swarf blocking the suction screen. Quote Link to comment Share on other sites More sharing options...
philbey Posted February 12, 2009 Report Share Posted February 12, 2009 that would be a LOT of swarf to block the pickup screen! I'm sure youd see all sorts of other nasty symptoms too! Quote Link to comment Share on other sites More sharing options...
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