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12-07-2012, 07:27pm
(This post was last modified: 13-07-2012, 10:49pm by Maj.)
You can reindex the crank sprocket
for turbo with .080 spacer placing the crank sprocket forward 5 splines puts the cams at OEM timing
from 05 onward this means cutting a spline tooth out of the crank sprocket with a chainsaw file as the switched to master spline that yr
works for both gen 1 and 2
goto work on my dislexia ;)
Thanks Maj. Never seen that before.
The Speed Sensor has now been shipped.
I will then take it for a ride and see how it goes.
The only reason I used that head was because the one I ported with the 395/378s failed the leak down test. Got an air powered valve lapping tool coming now. Next time will vacuum test all 4 properly. Never did really get it right after bending that exhaust valve on the previous. By memory the base gasket is about 2.8mm which is a bit more than 0.08".
Do you think a Gen2 Intake & Gen2 Intake as exhaust with adjustable sprockets would be a good combination at say 106/108 or 108/110 for a 1580 road bike ?
Thanks heaps Maj. Understand far better now.
Yes, for what I want to do the lower sprocket is my best option. Will look at the spline to check. .......& should not have to remove the motor from frame again.----easy----I hope.
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13-07-2012, 12:02pm
(This post was last modified: 13-07-2012, 12:03pm by Maj.)
Lower sprocket is simple and cheap,
adjustable sprockets more cost , more accuracy but at a higher level of complication, and the potential at slip .. both on the cam and at the adjuster, cam is easy spot weld them
when i put my stroker crank in and bigger spacer i started retiming the cams, first checking the base settings knowing they would be a couple degrees more advanced going from .080 to .120 and found my exhaust cam had moved, considerably ...
cleaner sprockets, more locktight and tighter bolts, hope they hold tihs time cause its not going to be pretty if they move when i'm in top gear near the rpm limiter for 4-5 miles
Checked & I have a 2004 Crank Sprocket.
I have 0.114" base spacer/gasket. So approx 0.100" extra. So 4.2 degrees out ?
Move 6 or 7 crank sprocket splines ?
Please confirm, move crank sprocket clockwise or anticlockwise ???
PS. That base gasket/spacer should have given me 12:1CR with the 13:1 pistons & plenty of piston to valve clearance.
Cheers
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13-07-2012, 10:46pm
(This post was last modified: 13-07-2012, 10:47pm by Maj.)
Ahh shit my pic is deceptive, that one actually has several teeth filed for different timing options when i was trying something , back on the splines and forward on the tooth to measure the outcome
i will put up a better pic
use 7 teeth clockwise then check the actual timing with dgree wheel and dial gauge