| [ Total Views: 711 | Total Replies: 11 | Thread Id: 80980 ] |
|
|
 beachbuggy61
Seriously Crusin Dubber
Posts: 162
Threads: 43
Registered: December 22nd, 2009
Member Is Offline
Location: Toukley, Central Coast NSW
Theme: UltimaBB Pro Orange
Mood: Hangin' to drive my bug!
|
| posted on December 24th, 2009 at 03:35 PM |
|
|
Stopping tappet rattle
Hi all, I hope you can help.
I have a 1641 t/p with a W110 cam and 1.25's and I can't seem to get the tappets to run quietly!
I've had varying advice; from "VW's always run 6 thou and never any other setting or you'll get valves riding", to "put up with it cos you've
got a cam and it's part of life", to one place I saw that they recommended no clearance when stone cold.
I'd like to get it quieter if I can without sacrificing compression and/or riding valves.
Any advice?
Many thanks,
Marc
Baja
1915cc's of raw power 
Turbocharger
Intercooler
EFI
Crank fired Ignition
Runs E85
Engineered
"The Lord does not subtract from the life of a man, the hours spent on his Volkswagen" Anon. |
|
|
beachbuggy61
Seriously Crusin Dubber
Posts: 162
Threads: 43
Registered: December 22nd, 2009
Member Is Offline
Location: Toukley, Central Coast NSW
Theme: UltimaBB Pro Orange
Mood: Hangin' to drive my bug!
|
| posted on December 24th, 2009 at 03:36 PM |
|
|
Oh, and I've tried to search the Tech Talk forum subjects but no luck.
Thanks.
Baja
1915cc's of raw power
Turbocharger
Intercooler
EFI
Crank fired Ignition
Runs E85
Engineered
"The Lord does not subtract from the life of a man, the hours spent on his Volkswagen" Anon. |
|
|
 Bizarre
Super Moderator
The artist formerly known as blue74l
Posts: 12780
Threads: 734
Registered: August 25th, 2002
Member Is Offline
Location: Abbotsford, Sydney
Theme: UltimaBB Pro Blue ( Default )
|
| posted on December 24th, 2009 at 03:54 PM |
|
|
What have you got them set at now??
Do you know what sort of push rods you are running cro-moly?? or stock ??
Futue te ipsum!!!
|
|
|
vwo60
Veteran Volks Folk
Posts: 2036
Threads: 71
Registered: February 13th, 2007
Member Is Offline
Location: Pomona Qld
Theme: UltimaBB Psyche Blue
Mood: good
|
| posted on December 25th, 2009 at 05:56 AM |
|
|
HI, i have a 2054 running chromoly push rods and still run .006" tappet clearence, the best way to sent the tappets is to check them hot and work
backwards to get the clearence that your engine likes, if the engine has .012" clearence hot then set the tappets to .000" cold so when the engine
heats up and grows you will have .006", you must remember that the air cooled engine has no water jackets to quiten down the engine and will make
more mechanical noise because of this.
|
|
|
OZ Towdster
A.k.a.: Andrew Westwood
Custom Title Time!
Keen to finish some projects
Posts: 1921
Threads: 132
Registered: December 7th, 2003
Member Is Offline
Location: Alexandra Hills Brisbane QLD
Theme: UltimaBB Pro Yellow
Mood: Having fun in our great land
|
| posted on December 25th, 2009 at 06:19 AM |
|
|
Also check you are setting the tappets at the right stroke ie # 1 is at top dead centre , set number one , wind motor backwards 180 deg , set #2 and
the same for 3 & 4 turning the motor back another 180 deg only between each cylinder
Don't let body work get in the way of real suspension travel
|
|
|
alien8
Wolfsburg Wizard
Posts: 521
Threads: 84
Registered: September 5th, 2008
Member Is Offline
Location: Brisbane
Theme: UltimaBB Powder
|
| posted on December 25th, 2009 at 09:09 AM |
|
|
A tappy motor is a happy motor!
I have no idea if this is true or not, I just like the saying
|
|
|
Joel
Scirocco Rare
Now containing 100% E-Wang
Posts: 9368
Threads: 211
Registered: February 14th, 2006
Member Is Offline
Location: Northern Rivers NSW
Theme: UltimaBB Pro Purple
Mood: Tact Level 0.00
|
| posted on December 25th, 2009 at 11:19 AM |
|
|
not to tappy otherwise they just pound away the top of the valve stem
ive always set bone stock twin port heads to 0.10mm/4thou and never had a problem. keeps them nice and quiet and not to tight. some manuals say 4 thou
but some say 6 for T/P heads
Tighe cams recommend that the gaps for the model of cam i run in my 1776 be set at 8 thou for ex and 6thou for intake
different cams and ratio rockers seem to chuck stock specs out the window
|
|
|
Special Air Service
Custom Title Time!
Chief "Gunna"
Posts: 1769
Threads: 210
Registered: October 4th, 2004
Member Is Offline
Location: Old Bar , Mid North Coast , NSW
Theme: UltimaBB Pro Blue ( Default )
Mood: In desperate need of a decent sleep
|
| posted on December 26th, 2009 at 07:28 PM |
|
|
| Quote: | Originally
posted by OZ Towdster
Also check you are setting the tappets at the right stroke ie # 1 is at top dead centre , set number one , wind motor backwards 180 deg , set #2 and
the same for 3 & 4 turning the motor back another 180 deg only between each cylinder
|
Whats the theory behind turning the motor backwards? Does it make any difference? or am I reading too much into your answer?
Cheers
Brendan
[size=5] Calling all NSW Mid North Coast Veedubbers
Click Below [/size]
[size=6]Mid North
Coast VW [/size] |
|
|
mackaymanx
A.k.a.: Brent
Custom Title Time!
Posts: 1611
Threads: 97
Registered: January 12th, 2006
Member Is Offline
Location: Mackay.QLD
Theme: UltimaBB Pro Blue
Mood: Brad'ed Off 
|
| posted on December 26th, 2009 at 07:55 PM |
|
|
It makes no difference if you go backwards or forwards, but it changes the order you adjust the valves in.
Quote of the week
"Do I wish to send them to you again, nope, no interest can't be bothered really, to much hassle for little or no return."
 |
|
|
beachbuggy61
Seriously Crusin Dubber
Posts: 162
Threads: 43
Registered: December 22nd, 2009
Member Is Offline
Location: Toukley, Central Coast NSW
Theme: UltimaBB Pro Orange
Mood: Hangin' to drive my bug!
|
| posted on December 28th, 2009 at 03:13 PM |
|
|
| Quote: | Originally
posted by Bizarre
What have you got them set at now??
Do you know what sort of push rods you are running cro-moly?? or stock ??
|
Have them set at 6 thou at the moment, running stock pushrods.
Thanks.
Baja
1915cc's of raw power
Turbocharger
Intercooler
EFI
Crank fired Ignition
Runs E85
Engineered
"The Lord does not subtract from the life of a man, the hours spent on his Volkswagen" Anon. |
|
|
beachbuggy61
Seriously Crusin Dubber
Posts: 162
Threads: 43
Registered: December 22nd, 2009
Member Is Offline
Location: Toukley, Central Coast NSW
Theme: UltimaBB Pro Orange
Mood: Hangin' to drive my bug!
|
| posted on December 28th, 2009 at 03:17 PM |
|
|
Thanks everyone. I've definitely been setting them at TDC for each cylinder using the "do #1 and turn it backwards" technique so I'm confident the
settings are consistent.
Will check them hot and go from there I think.
Thanks again for the input, will let you know.... 
Baja
1915cc's of raw power
Turbocharger
Intercooler
EFI
Crank fired Ignition
Runs E85
Engineered
"The Lord does not subtract from the life of a man, the hours spent on his Volkswagen" Anon. |
|
|
beachbuggy61
Seriously Crusin Dubber
Posts: 162
Threads: 43
Registered: December 22nd, 2009
Member Is Offline
Location: Toukley, Central Coast NSW
Theme: UltimaBB Pro Orange
Mood: Hangin' to drive my bug!
|
| posted on December 30th, 2009 at 12:51 PM |
|
|
Wound up with 4 thou. Still a little tappy but much better than they were.
Thanks everyone for the advice.
Cheers, Marc.
Baja
1915cc's of raw power
Turbocharger
Intercooler
EFI
Crank fired Ignition
Runs E85
Engineered
"The Lord does not subtract from the life of a man, the hours spent on his Volkswagen" Anon. |
|
|
