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MK999
11-03-09, 12:18 PM
I just received a camshaft sold to me as "for 1.6 believed to be fast road but not sure"

Just wondering if anyone could identify it for me, I've searched google with the numbers stamped on the camshaft and not got anything too interesting. To me it looks like it's been reground, as the material between the 'flat' end of the cams is ground back roughly, but quite obviously after the camshaft was cast, and it also seems to be a lot shallower between the cams than i remember my standard one to be.

The markings I can find on the cam are:

"HF" stamped into what i believe is the dizzy end of the shaft, smaller end with the short dowel type bit on it instead of the hole? not at home atm to check which end that is and i can't remember off hand. Personally I was hoping that this stands for "Have Fun".

"10326" on the opposite end of the cam shaft, again stamped. I'm guessing this is the production number, possibly of the blank, or the original GM camshaft if it's a regrind?

"R9" This I thought at first was scratched into the end but looking closer it's actually a series of tiny dots stamped lightly into the materal.

"79" and "26" on the actual shaft of the camshaft, between cylinders 1/2 and 3/4.

It also seems to have an offcentre circle 'cam' on what i believe to be the dizzy end, in between the dizzy drive part and where the first bearing would be (what would you call that anyway, guide?) I can only imagine this would be for balancing? But i'm not 100% on that as the camshaft is obviously reasonably well balanced by design, as it opens cylinders 4 times per revolution, and so by design the lobes are seperated by 90 degrees, or it fires randomly.

Rep offered for help in identifying, because you deserve it just for reading that lot lol

Cheers :thumb:

Adam
11-03-09, 12:38 PM
The offset lobe is to drive the mechanical fuel pump.

Gm cams have GM stamped on them, and a letter stamped in the dizzy end (A etc), the letter is what refers to what engine it came from

MK999
11-03-09, 12:40 PM
Didn't both gte and gsi engines have electrical fuel pumps? So I'm most likely looking at a carbed engine cam?

Adam
11-03-09, 12:42 PM
yup/
But ive had both gte and gsi cams which have had the fuel pump lobe for some reason....

MK999
11-03-09, 12:46 PM
dual fuel pumping! like supercharging and turbocharging the injection system at the same time lol

I don't recognise any major difference to my 1.6 cam so hopefully it does fit.

I'm hoping to find out what duration it is though before I just whack it in and find out it'll be needing solid lifters double springs and pocketed pistons lol

ck
11-03-09, 04:11 PM
u got it the wrong way round. the end with the small dowel and the fuel pump lobe is the cam pulley end. the dizzy end should have 2 holes and maybe a slot in the centre..

if its a piper regrind it will have a strange black coating across the whole cam.

to be honest it sounds like a standard cam. generally regrinds will have new codes stamped into them to determine what the cam actually is.

every after market cam that i have had/used from many different manufacturers have had there own specific markings on them on the re-ground cams. so if u can get sum pics up maybe we can give you more of an idea on what it is..

MK999
11-03-09, 04:46 PM
Will do, it's not got a black coating over the whole cam, does this wear off at all? The cast bits are dark, but this seems pretty normal to me. Pics in a few mins :thumb:

MK999
11-03-09, 05:05 PM
http://img.photobucket.com/albums/v471/MK999/DSC00071.jpg

http://img.photobucket.com/albums/v471/MK999/DSC00070.jpg

http://img.photobucket.com/albums/v471/MK999/DSC00069.jpg

http://img.photobucket.com/albums/v471/MK999/DSC00068.jpg

http://img.photobucket.com/albums/v471/MK999/DSC00067.jpg

http://img.photobucket.com/albums/v471/MK999/DSC00066.jpg

http://img.photobucket.com/albums/v471/MK999/DSC00065.jpg

Not perfectly clear but all I have here is a phone camera at the moment.

MK999
12-03-09, 08:16 PM
Any ideas people? :) If not I might have to see if I can get it measured at uni and graph up the duration

gazsnova
12-03-09, 08:27 PM
on the last pic- does it say r9? whats the other marking next to it?

MK999
12-03-09, 08:31 PM
R9, and then 10326, markings are described in detail in 1st post :) Although I have now realised that it's not the production number of a GM blank, as it's not a GM camshaft, no GM markings on it or the original lettering.

gazsnova
12-03-09, 08:37 PM
sorry should have read properly (tired after 10 hours of peugeots) ill have a look through some paper work i got from my uncle. he used to own a shop selling high lift cams and usual extras.

MK999
12-03-09, 08:41 PM
nice one :thumb: I've searched the net but not found anything, it's definitely not the usual kent/piper cam and searching for the markings on it just brings up pages of random journals and other technical notes on unrelated stuff

gazsnova
12-03-09, 08:53 PM
cant find anything on piper, kent or schrick. not sure what it is. ill have a word wit my uncle see who else supplied him cams.

MK999
12-03-09, 09:28 PM
hadn't found anything on schrick so that's good to rule out. The only other major suspicion I have is autosprint, they don't mention any part numbers etc on their site though, only what they do to the cam.

dumpycorsa
13-03-09, 11:49 AM
Cams I've had from Autosprint haven't had any numbers stamped on them. The first pair I had had a V ground into one of the end journals the second pair had no markings at all other than GM marks/numbers.

MK999
13-03-09, 05:20 PM
Could be one of those then if it was ground from a marked blank, but no way of identifying it!