cam shaft lettering

[chimp007_uk]

hi,

lltn thought that the 1.6 8v gte camshaft letter was D, but after taking the dizzy off today, i found that mine has a B stamped into it.

is this right?

chris

[chimp007_uk]

anyone know what letters correspond with which camshafts?

[Adam]

It is D by the book.

But weirdly enough i also have a couple of "GTE" camshafts with the letter B.
However the ones with B also have a fuel pump lobe, which a GTE shouldn't have.

B relates to 1300sr iirc.

So i dont know what all that is about.

[chimp007_uk]

that is really odd...

when i bought the car i was told it was an uprated cam, but wasn't really bothered, picked it up for ?300.

never checked, until now :)

[Adam]

What engine is it?
A proper GTE one?

[chimp007_uk]

yeh, non cat and lambda sensor

[stafford]

this got me to another thing is i cam across a gsi cam that had the letter B on it but opposite has a lettle number 2. ive been told the cam D is the 1.6 carbed astra

[chimp007_uk]

i dont have any numbers !?! just a B. could it be a reprofiled cam?

[Adam]

Perhaps Gm bunged some 1300sr cam's into gte's when they stopped making 1300 engines.. They aren't far different from GTE cams, in terms of lift etc. But 1300 has a SLOT dizzy drive, whereas GTE has pin.
Both my D and B cams have pin, but only the B cam has a fuel pump lobe.

[chimp007_uk]

i haven't taken the rocket cover off to check if it has a fuel pump lobe, will lt you all know, as the cam shaft mystery unroles lol

[chimp007_uk]

also, i got told that the gte's have a square toothed cam pulley. where as mine is round...

[chimp007_uk]

anyone? really intreagued