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clyve Officially Full-On Dubber

310 posts · joined Feb 2011 ·

#1008470
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 Compulsive Aussie Vee Dubber

4,270 posts · joined Jun 2010 ·

#1008550
is it constant knock or erratic?

71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE

clyve Officially Full-On Dubber

310 posts · joined Feb 2011 ·

#1008558
Constant but goes away when you start to rev it

bugmaniaar Officially Full-On Dubber

295 posts · joined Jun 2011 ·

#1008560
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 Compulsive Aussie Vee Dubber

4,131 posts · joined Aug 2002 ·

#1008596
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
"If at first you don't succeed, skydiving is not for you." - Anonymous 🥷

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#1008606
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
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

vlad01 Compulsive Aussie Vee Dubber

4,270 posts · joined Jun 2010 ·

#1008633
clyve wrote: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

71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE

clyve Officially Full-On Dubber

310 posts · joined Feb 2011 ·

#1008642
Ok thanks for the pointers I will investigate this wet weekend an will be back
Thanks again all

clyve Officially Full-On Dubber

310 posts · joined Feb 2011 ·

#1009294
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