Rocker noise has me worried
#21
Norri,
Don't be too quick to blame the valve train. Here's why. Gt hold of a stethoscope and listen to th fuel rail and adjacent fuel line upstream of it. It sounds for all the world like valve train noise. If you dont have a stethosope get a long piece of metal bar about 1/4 in in diameter, needs to be abot 18-24 ins long. Hold one end in you closed fist and against your ear, touch the free end to various part of the engine. It's actually kinda fun!
I dont know if this the actual noise you are referring to, perhaps not but worth looking into. I had an XJ -40 a few years back and the fuel rail dampening diapragm went bad, sounded just like a bad rod from inside the car...crazy! If I remember at the team the dealer referred to it as the helicopter noise, it was quite common apparently. Good luck, let us all know what you find out
Don't be too quick to blame the valve train. Here's why. Gt hold of a stethoscope and listen to th fuel rail and adjacent fuel line upstream of it. It sounds for all the world like valve train noise. If you dont have a stethosope get a long piece of metal bar about 1/4 in in diameter, needs to be abot 18-24 ins long. Hold one end in you closed fist and against your ear, touch the free end to various part of the engine. It's actually kinda fun!
I dont know if this the actual noise you are referring to, perhaps not but worth looking into. I had an XJ -40 a few years back and the fuel rail dampening diapragm went bad, sounded just like a bad rod from inside the car...crazy! If I remember at the team the dealer referred to it as the helicopter noise, it was quite common apparently. Good luck, let us all know what you find out
#22
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#23
#25
I spoke with coventrywest on my Jag as I was pricing what the parts might cost. He asked me a curious question about my oil filter... Was it OEM? I didn't know and found it interesting as the last time I had it changed, it was with a new company. I am have found some OEM filters online although I am having a difficult time on confirming the part number. Coventry stated that an improper filter wouldn't have a needed valve that would create the tensioner problem. Any moments? Does anyone have the OEM number?
#26
I spoke with coventrywest on my Jag as I was pricing what the parts might cost. He asked me a curious question about my oil filter... Was it OEM? I didn't know and found it interesting as the last time I had it changed, it was with a new company. I am have found some OEM filters online although I am having a difficult time on confirming the part number. Coventry stated that an improper filter wouldn't have a needed valve that would create the tensioner problem. Any moments? Does anyone have the OEM number?
Without this valve, the oil in the galleries could drain back into the sump. Then, on re-start, it would take a while to pressurize the oil in the Tensioners causing a loose chain with the attendant noise.
I use a Wix Filter and have no noises at startup.
Last edited by Paul Pavlik; 09-14-2012 at 08:00 PM.
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EZDriver (09-14-2012)
#28
#29
#30
Well is the update on the vehicle. As it turns out the rattle in the noise is a rod in the engine so I'm being told by the mechanic. Have to replace an engine. I did find one that I'm getting that has about half the miles on it as mine does and it cost a couple thousand dollars so overall not too bad. But was wondering what most you guys had paid to have a engine installed in your vehicle. I'm thinking about 1800 max.
#31
Final diagnosis? Your car seems too new to have a rod problem unless you've been racing around with no oil......not for me to second guess over long distance, but if the engine is trash, why not just drive for awhile and enjoy, just do't go too far from home...... How's your oil pressure?
#32
Wait!
Well is the update on the vehicle. As it turns out the rattle in the noise is a rod in the engine so I'm being told by the mechanic. Have to replace an engine. I did find one that I'm getting that has about half the miles on it as mine does and it cost a couple thousand dollars so overall not too bad. But was wondering what most you guys had paid to have a engine installed in your vehicle. I'm thinking about 1800 max.
#33
#34
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Stephen B Cooper Dc (02-01-2013)
#35
All the gauges look great. I put it On the highway and tested it out and also ran it at a relatively high-speed about 95 mph for about 2 miles with no drop in power. Is able to serge and accelerate as it always did. Honestly, I don't trust the mechanic here, but I don't have much choice. Most of my knowledge is limited to the spine and how the body works not too good on engines
#36
Steven (my brother Stephen is also a Doctor of Chiropactic), Doctor to doctor, hold off on another motor till my advice is performed on removing the supercharger and accessory belt, then starting her, listening for noises. This maneuver isolates noises as having an origin germain to the engine.
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Stephen B Cooper Dc (02-01-2013)