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mack88

350 4V E6 engine tick

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My 87 has a tick when its driven and warmed up. Not a constant tick, more of a hit and miss tick. Doesn't do it when it's cold. Thought it was my air conditioner but it's not. that oil is good steped on the clutch still there. Oil pressure is good. Could it be an injector going bad? Thinking if it was a valve, it would be a constant tick. Any ideas? Thanks

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Just had injectors  put in a 90 Rd with a em6 300 l still gave a tick and smokes doesn't use oil about a quart a week think the boss  should have done a overhaul 

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I've seen e6 valve guides loosen and start moving up and down causing a ticking noise. Does it have an American Bosch aka (ambac) injection pump on it?

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On mine yes 

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I have a 686st .. 1986...E237. It's not the original engine..I bought it as is...I had a ticking noise that would come and go..Thought it was a lifter.

Turned out to be a bad head gasket...the ticking sound was coming from where the head meets the block in one spot. Once I figured it out, you could actually see it leak and tick.

Easy fix..new head gasket..all good for a year now..maybe this will help..

 

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New compressor  on mine 

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I had a tick that would come and go. Then is got constant taught it was a band clamp on the exhaust.  Ended up losing a lift and the cam so I'd check your valve train out

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