Prechambers wont stop leaking
Prechambers wont stop leaking
So i've been trying to track down this perpetual "tick" noise for some time now. I've found it be somewhat like an exhaust leak but fast and rpm dependent. I did the soapy water test and sure even a few prechambers were bubbling. I ordered the tool from mercedes source and spent a few hours to retorque the lock nut and replace the injector heat shields.
Two of the three leakers had some movement before being torqued. but instead of being fixed, one is just worse now and bubbles pretty good. So doesn't imply i need to take apart the prechambers, clean them, and replace the sealing ring?
hehe, that is not so easy....
first u have to remove the precup , clean the seat and install them again. tq should be something around 100n to 130n.
the shields dont need to be replaced although care should be used when installing them. right side and clean. tq for injector is 50n.
The precups dont have seals. to remove them u seed and impact extractor , special tool.
regards and good luck withit.
(10-02-2015, 09:42 PM)Whizbang So i've been trying to track down this perpetual "tick" noise for some time now. I've found it be somewhat like an exhaust leak but fast and rpm dependent. I did the soapy water test and sure even a few prechambers were bubbling. I ordered the tool from mercedes source and spent a few hours to retorque the lock nut and replace the injector heat shields.
Two of the three leakers had some movement before being torqued. but instead of being fixed, one is just worse now and bubbles pretty good. So doesn't imply i need to take apart the prechambers, clean them, and replace the sealing ring?
(10-02-2015, 09:42 PM)Whizbang So i've been trying to track down this perpetual "tick" noise for some time now. I've found it be somewhat like an exhaust leak but fast and rpm dependent. I did the soapy water test and sure even a few prechambers were bubbling. I ordered the tool from mercedes source and spent a few hours to retorque the lock nut and replace the injector heat shields.
Two of the three leakers had some movement before being torqued. but instead of being fixed, one is just worse now and bubbles pretty good. So doesn't imply i need to take apart the prechambers, clean them, and replace the sealing ring?
Good luck then!
ps. Don't forget to remove the glowplugs first and ream the holes.