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General Information => Troubleshooting => Topic started by: brumble on June 30, 2007, 01:41:56 pm

Title: Strange knocking sound
Post by: brumble on June 30, 2007, 01:41:56 pm

Hi to everyone :)
This is the first time i post here so please bear over with me :)
I have recently changed the timing belt and valve seals on my 1.6 d  Golf  II, at the same time i got hold of a turbo kit for my n/a motor and of course i mounted this :) The engine starts up and runs fine even when revving it, but when driving and stepping on the accelerator the engine gives off a strange metallic knocking sound, this sound wears off when the desired speed is reached. I am currently running 0,6 Bar boost. could anyone please help me find out what this is?
Any help is greatly appreciated.

Best regards
Brumble :)

Title: Strange knocking sound
Post by: jtanguay on July 01, 2007, 07:04:21 am

i don't know if this applies, but my transmission makes some weird noises before it hits 2k rpm or so...

Title: Strange knocking sound
Post by: brumble on July 01, 2007, 08:12:33 am

Hi,
Thanks for the answer, but i seriosly doubt this sound is coming from the tranny. The reason being that I have been using this tranny for a long time, and I have never had any issues with it. Any other ideas what it might be?

Title: Strange knocking sound
Post by: jtanguay on July 01, 2007, 05:38:56 pm

try double checking your timing.  did you use the timing instructions from the Bentley?  hopefully it isn't a valve just barely smacking a piston  :shock:

mine also made a weird noise like that... but it goes away when warm and since i put in 5w50 oil.  almost sounds like a valve is sticking... she still runs good though!

Title: Strange knocking sound
Post by: bevboyy on July 02, 2007, 07:32:43 pm

hydraulic or solid lifter head? Could be a sticky lifter.

Title: Strange knocking sound
Post by: brumble on July 03, 2007, 08:38:49 am

Hi.
Thanks for your answers. Have just double checked my timing and it was ok :)  My engine has the letters CR stamped into the block, somewhere on the web i found this to be a solid lifter. How would I go about to check the lifters?

Title: Strange knocking sound
Post by: jtanguay on July 03, 2007, 08:42:46 am

you need a feeler gauge to measure the clearances, then buy shims and voila.  a bentley manual at this stage is invaluable.