HI PSI Member 1,589 Member For: 20y 4m 4d Gender: Male Location: Central Queensland Posted 17/09/15 01:43 PM Author Posted 17/09/15 01:43 PM Take the weight off the RH engine mount with an Engine crane and see if the noise changes. Doesn't sound internal to me. As Double R Ron mentioned I think it sounds like resonance being transferred into the chassicI will pass this on. Believe me when I say that he will try almost anything.......He indicated that it seems to be coming from around the front of the rocker cover.... It is strange that it moves up the rev range when extra tension is placed on the timing chain though....
Ralph Wiggum Moar Powar Babeh Legacy Donating Member 19,334 Member For: 21y 6d Gender: Male Location: Perth Posted 17/09/15 01:45 PM Posted 17/09/15 01:45 PM Does it have solid/poly engine mounts? They send noises in all sorts of weird places. The only other noise that springs to mind that sounds similar is an Unhappy pump, but since you have tried it without the belt it rules out the PS and Water pump......what mods have been done to the Oil pump? 1
CHLAXN Legacy Donating Member 932 Member For: 18y 4m 7d Gender: Male Location: north QLD Posted 17/09/15 01:48 PM Posted 17/09/15 01:48 PM Yes it is.Yeah thought so can understand why he would be pulling his hair out mate.. Seen the motor a few months back while I was getting oil for mine. Really hope he can get it sorted ASAP and with no warranty I don't blame him being paranoid about it. 1
HI PSI Member 1,589 Member For: 20y 4m 4d Gender: Male Location: Central Queensland Posted 17/09/15 01:55 PM Author Posted 17/09/15 01:55 PM (edited) Does it have solid/poly engine mounts? They send noises in all sorts of weird places. The only other noise that springs to mind that sounds similar is an Unhappy pump, but since you have tried it without the belt it rules out the PS and Water pump......what mods have been done to the Oil pump? Does it have solid/poly engine mounts? They send noises in all sorts of weird places. I don't know which mounts he is using, I will enquire tomorrow and post the results. what mods have been done to the Oil pump? It's dry sumped. from memory it is a Peterson. Edited 17/09/15 01:55 PM by HI PSI
Ralph Wiggum Moar Powar Babeh Legacy Donating Member 19,334 Member For: 21y 6d Gender: Male Location: Perth Posted 17/09/15 01:57 PM Posted 17/09/15 01:57 PM Check for hoses from the oil pump touching something else. The videos sound's not the best but it sounds like a hydraulic (ie oil pump) buzz to me. 2
HI PSI Member 1,589 Member For: 20y 4m 4d Gender: Male Location: Central Queensland Posted 17/09/15 02:00 PM Author Posted 17/09/15 02:00 PM Check for hoses from the oil pump touching something else. The videos sound's not the best but it sounds like a hydraulic (ie oil pump) buzz to me.Great lateral thinking.... Just what we need.
CHLAXN Legacy Donating Member 932 Member For: 18y 4m 7d Gender: Male Location: north QLD Posted 17/09/15 02:01 PM Posted 17/09/15 02:01 PM Hey brad tried to send you a pm on here but would not let me send it. Sent you a message on Facebook bud
HI PSI Member 1,589 Member For: 20y 4m 4d Gender: Male Location: Central Queensland Posted 17/09/15 02:02 PM Author Posted 17/09/15 02:02 PM Auto or manualWe had a similar noise with our Nizpro engine in exactly the same rev range. There seems to be a resonance at that RPM that amplify noises. For us it ended up being exhaust related , but took ages to diagnoses as it definitely appeared to be coming from the engine. SO this noise may NOT be actually coming from the engine. Noise travels strangely through different components and metals.Very hard to diagnose from the short video.Sorry, I missed your post. Great input!! Thanks....
HI PSI Member 1,589 Member For: 20y 4m 4d Gender: Male Location: Central Queensland Posted 17/09/15 02:10 PM Author Posted 17/09/15 02:10 PM Hey brad tried to send you a pm on here but would not let me send it. Sent you a message on Facebook budI think that my inbox was full. I have now made room. :D
HI PSI Member 1,589 Member For: 20y 4m 4d Gender: Male Location: Central Queensland Posted 17/09/15 10:14 PM Author Posted 17/09/15 10:14 PM Does it have solid/poly engine mounts? They send noises in all sorts of weird places. The only other noise that springs to mind that sounds similar is an Unhappy pump, but since you have tried it without the belt it rules out the PS and Water pump......what mods have been done to the Oil pump?It has factory engine mounts.
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