sebastian_khosyi Posted September 20, 2014 Share Posted September 20, 2014 Hi, i have a 1983 110 with a 3.5 v8 and recently, the car wont start but turns over. After trying to push start it, it started. But before any of that happened a loud knock seems to be present above 2000 rpm and i've only done around 1300 miles since a full rebuild. I suspected the coil at first but i don't know for sure. Could it be a misfire or is it bearing knock, i really need input from youg guys thank youuuuuu Looking forward to your replies Quote Link to comment Share on other sites More sharing options...
Team Idris Posted September 21, 2014 Share Posted September 21, 2014 There's no way to call that one without a video? I could say that the valve timing has moved, or a big end, but it could be as simple as a push rod too far into a worn rocker arm. All you can do is check stuff like ignition timing and keep going deeper until you find something. Maybe it isn't even the engine? Quote Link to comment Share on other sites More sharing options...
sebastian_khosyi Posted September 21, 2014 Author Share Posted September 21, 2014 There's no way to call that one without a video? I could say that the valve timing has moved, or a big end, but it could be as simple as a push rod too far into a worn rocker arm. All you can do is check stuff like ignition timing and keep going deeper until you find something. Maybe it isn't even the engine? Its the engine, the starter turns the engine but it won't start, i had a couple of friends to push the car and start it in first gear and it starts. After that i tried putting the engine in no load at all and rev to 2300 rpm and it knocks erratically. Idle is good and the engine doesn't stall so i have no possible idea what is wrong. Quote Link to comment Share on other sites More sharing options...
Tanuki Posted September 21, 2014 Share Posted September 21, 2014 Carb or injection? Is the knock at engine-RPM or half-engine-RPM? Given that it's been unused for some time and had starting-difficulties I'm wondering if the oil's drained out of one or more of the hydraulic valve-lifters so your valve-timing's all over the place. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted September 22, 2014 Share Posted September 22, 2014 Given that it's been unused for some time and had starting-difficulties I'm wondering if the oil's drained out of one or more of the hydraulic valve-lifters so your valve-timing's all over the place. Empty lifters won't change the timing, just the lift (or lack of). As it's been rebuilt there's a lot of things that could've been not done up properly. Quote Link to comment Share on other sites More sharing options...
sebastian_khosyi Posted September 22, 2014 Author Share Posted September 22, 2014 Carb or injection? Is the knock at engine-RPM or half-engine-RPM? Given that it's been unused for some time and had starting-difficulties I'm wondering if the oil's drained out of one or more of the hydraulic valve-lifters so your valve-timing's all over the place. Empty lifters won't change the timing, just the lift (or lack of). As it's been rebuilt there's a lot of things that could've been not done up properly. The problem i'm having had recently started. The landy is a daily driver and this started happening after playing with some friends. Now the car has been sitting in the garage for 2 days. The engine cranks but won't start. Quote Link to comment Share on other sites More sharing options...
sebastian_khosyi Posted September 23, 2014 Author Share Posted September 23, 2014 A little update, I started the engine today and it knocked loudly at idle. I think its not the tappets. I suspect a bent valve or spun bearing i really have no clue in this issue Quote Link to comment Share on other sites More sharing options...
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