Board Logo
Go To Bottom

Printable Version  
[ Total Views: 600 | Total Replies: 3 | Thread Id: 66474 ]
Author: Subject:  rockers -spacers
Memberpunchbuggyracer
A.k.a.: Rob Tratt
Seriously Crusin Dubber
**


Avatar


Posts: 152
Threads: 22
Registered: April 30th, 2006
Member Is Offline

Location: ANNERLEY, QLD
Theme: UltimaBB Pro Black
Mood: Above average!

posted on December 8th, 2007 at 07:43 PM
rockers -spacers


Im putting together an old 1835. Ive had the heads resurfaced for a good seal, one was corroded so a had another one machined up. From memory the new one had to have about 8mm fly cut out to make them the same. The ports are stock and I CC'ed them at about 42.5cc.

Heads are back on, put the rockers on and damn it the adjusters are already at their max I still need close to a millimetre to get them with in tolerences. I originally thought the push rods were stock. I dont have another one to compare it to, but I now suspect its been shortened and by to much.

Can I machine the rocker mounting blocks to bring it back down to the right height? Or do I need push rods that I can trim down eg Empi, if so how much.

Cheers




Street N Park The experts in dialling scooters
Memberhellbugged
A.k.a.: Daimo Pell
23 Windows of Awesome
48's and straight cuts
********


Avatar


Posts: 5080
Threads: 116
Registered: April 17th, 2003
Member Is Offline

Location: Nambucca Valley NSW
Theme: UltimaBB Psyche Blue
Mood: Couldn't care less

posted on December 8th, 2007 at 09:47 PM



better off with another set of pushrods..........

machining (or spacers) on the rocker "pedastal" will effect the geometry of the rockers on the valve tips. pushrod to rocker geometry will also be outa wack

around $80
Member1303Steve
A.k.a.: Steve Carter
Scirocco Rare
*********


Avatar


Posts: 8650
Threads: 564
Registered: August 27th, 2002
Member Is Offline

Location: Sydney, NSW
Theme: UltimaBB Pro Blue ( Default )
Mood: Parrot Heading

posted on December 8th, 2007 at 10:20 PM



Hi

Make yourself an adjustable pushrod so that you can get the correct size pushrod made. You can fit a spacer under the rocker posts, but you can only go a small amount before it all turns bad.

To make an adjustable pushrod, get an old stock one. Cut it about 25 mm from the end, then cut another 25 mm off the long piece of pushrod that you have left over. Drill and tap each peice to 6 mm, then get a piece of 6mm threaded rod about 50 mm long, screw it into the short bit of pushrod untill stops, attach the long part of the pushrod, now you have an adjustable pushrod.

Steve
Memberpunchbuggyracer
A.k.a.: Rob Tratt
Seriously Crusin Dubber
**


Avatar


Posts: 152
Threads: 22
Registered: April 30th, 2006
Member Is Offline

Location: ANNERLEY, QLD
Theme: UltimaBB Pro Black
Mood: Above average!

posted on December 9th, 2007 at 10:52 PM



Yeah I thought as much, I've read it in the 'How to hotrod a Volkswagen'

This budget motor has cost me more than the car. I was hoping it could have a budget fix.




Street N Park The experts in dialling scooters


  Go To Top


Powered by GaiaBB, © 2011 The GaiaBB Group
(C) 2001-2025 Aussieveedubbers

[ Queries: 40 ] [ PHP: 2.2% - SQL: 97.8% ]