fatmike

iTrader: (4)

Hey guys, im just timing me engine back up after a bit of work to it but need a little advice, shes running a bit ruff definately not quite correct. What is the bottom pulley notch meant to be lined up with?? has any1 got any diagrams to help. I know the top cams arrows are meant to be facing eachother, but the only way she seems to run is when they are slighty offset. Any comments would be great.

Thanks guys

mechanic28

iTrader: (5)

inlet cam set at 3 o clock exhaust cam at 9 o clock u have 4 lugs on the bottom pulley in front of one of the lugs is a little cut out (V-shape)this u line up with the pointer,remove dizzy cap,arm and the dust cap refit arm this should line up with a line(does not have to be dead in the middle of the arm but as close as u can get it)

fatmike

iTrader: (4)

ooh so your saying that the inlet and exhaust cam arrows shud be facing away from eachother then??? both pointing outwards...? yeh i know the little v cut out but which bit is the pointer? Cheers

tabetha

Unless you want to wreck your engine don't listen to this dangerous advice from Mechanic 28.
The inlet and exhaust cam point INWARDS TOWARDS EACH OTHER, and in line with the join of the top of head and rocker cover.
The inlet will be at 9 o'clock, the xhaust will be at 3 o'clock.
The TDC mark is the LUG NOT THE NOTCH.
The engine rotates clockwise veiwed from the front so the "V" notch is set as 16 degrees as a checking facility for ignition timing, NON adjustable as set by CPS pick up position, this is why the "V" preceeds the LUG because it is BTDC(16 degrees).
The pointer is a raised bit of metal(alloy) to the left of the crank pulley that is sharp to a point, you cannot miss it.
tabetha

stage 3 muppet

just to clarify as i had this issue with mine when timing mine back up and the workshop manual is not vbery clear
i timed mine up at tdc assuming it was the v-groove and always wondered why it hunted on tickover i assumed this was down to cams
so what your basically saying is its the pickup lug that needs to line up with pointer and not the v-groove
as i always wondered this when doing mine

tabetha

Absolutely spot on, it is at TDC when the LUG on the pulley nearest the "V" groove is aligned with the pointer, this will then mean the other lug opposite side of the pulley will be in alignment with the CPS, of course there are two other lugs all set around at 90 degree intervals.
The "V" notch is for IGNITION timing checking, and has NOTHING to do with TDC setting up of cams/dizzy/crank pulley.
tabetha

mechanic28

iTrader: (5)

opps quite correct dont listen to the cams bit that i put not sure y i put that soz fella

tabetha

You're just trying to catch me up with mistakes!!
tabetha

Glenn_

iTrader: (1)

If u can i sometimes use a long thin screw driver remove no1 spark plug and put the screw driver into the spark plug hole. Then turn the crank till your screw driver starts lifting up. As soon as the screw driver goes back down check that the V in the bottom Pulley lines up with the notch. I hope this helps. You will need a really long screw driver mind.

tabetha

You don't need to go poking any screwdrivers anywhere, this is why the TDC is marked by the LUG not the "V" groove.
If you set it at the "V" groove, it will be 16 degrees too advanced as this is for the ignition timing NOT the valve timing, and you WILL have bent valves as a result.
tabetha

garyrs

here you go ,hope it helps

mechanic28

iTrader: (5)

tabetha

Just bear in mind not ALL auxillary pulleys have a alignment dot on the block, and if the dizzy has been out and not put back precisely on the skew gear it will no longer line up on the dot that should be there for the auxillary pulley wheel, so the aux pulley wheel marking can effectively be ignored so long as you check rotor arm alignment.
tabetha

mechanic28

iTrader: (5)

just relised bout the bottom pulley bit ignore me on that as well ment to put what tabetha said tho oh well i knew wot i ment

tabetha

I have just done a major problem on a cossie, caused by the dizzy marking being out by around 16 degrees, so all is not always as it should be.
This caused chronic and I do mean chronic over fuelling , but not at idle which was perfect at 2.5, sounded nice started perfect etc etc.
tabetha