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clyve - February 15th, 2015 at 05:50 PM

Greatings all need some help on 73 squreback
Got a slight knock at idle but not at revs?
Any ideas?
Tmi seat covers where to get from?
Petronix dizzy will it fit and worth it?
Thanks all

vlad01 - February 17th, 2015 at 11:15 AM

is it constant knock or erratic?

clyve - February 17th, 2015 at 04:44 PM

Constant but goes away when you start to rev it

bugmaniaar - February 17th, 2015 at 04:55 PM

Looking forward to hearing what the knock is.hope its not serious.
Had a beetle with what sounded like poorly adjusted valves or pinging on acceleration,never realy confirmed what it was,but
when we eventually pulled down the engine,couldn't believe the play on 2 of the big ends.........

empi - February 18th, 2015 at 03:19 PM

in a type 3 check the cooling fan bolt, the one with the belt from the generator. usually has a black plastic dome covering the bolt

vw54 - February 18th, 2015 at 06:49 PM

yep as per above have you done the tappets what grade oil u using has it been change recently and filter washed

TMI from VVDS in Sydney

vlad01 - February 19th, 2015 at 01:08 PM

Quote:
Originally posted by clyve
Constant but goes away when you start to rev it



pretty common problem on type 3 is the fan hub coming loose from the fan. its setup with rubber mounts and is like a harmonic balancer.

Have a look at that first as its common for making a knocking sound that comes and goes. generally the knock is a bit erratic at idle but does vary car to car when it happens.

http://www.thesamba.com/vw/forum/viewtopic.php?t=606881 

clyve - February 19th, 2015 at 06:40 PM

Ok thanks for the pointers I will investigate this wet weekend an will be back
Thanks again all

clyve - March 4th, 2015 at 08:18 PM

Valves done, much better, going for fan next but genny stuffed anybody go a spare or an alt mod that works, noticed bug gens would fit but shaft for fan.hmm still getting there