snapper
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| posted on 2/3/19 at 08:21 AM |
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Duratec cam fitting
Duratec standard cams are timed by using a TDC peg in the block and a flat bar across the rear of the cams.
So the question is when I buy uprated cams are they cut with the rear slots to give you the correct cam timing?
If this is the case can I use the standard cam sprockets with friction washers?
If I use the standard cam sprockets I was considering using Cosworth friction washers and possibly a keyway or dowels.
How are Duratec vernier pulleys secured to the cam?
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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flak monkey
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| posted on 2/3/19 at 11:02 AM |
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You don't need vernier pulleys for the duratec they are just friction anyway... And yes the new cams should be timed right using the slots in
the back, however I always check with a timing wheel.
Sera
http://www.motosera.com
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snapper
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| posted on 2/3/19 at 07:23 PM |
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Thanks Sera.
Do you keyway the crank?
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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flak monkey
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| posted on 2/3/19 at 07:24 PM |
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Yes I did, especially as I was driving the blower off it.
Sera
http://www.motosera.com
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peter030371
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| posted on 3/3/19 at 12:36 PM |
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My recent Kentcams came with adjustable pulleys. The cams have slots for timming but the instructions say to use the slots as a guide only and then to
get the timing perfect use the adjustable pulleys. I haven't fitted them yet so can't comment on how true this may or may not be.
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snapper
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| posted on 4/3/19 at 08:44 AM |
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Excellent info, I may blow the Duratec in time
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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peter030371
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| posted on 4/3/19 at 08:55 AM |
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And another tip, when fitting the cam pulleys use a spanner on the cam to tighten against and do not rely on the bar in the slots which is just for
location, the spanner fits the cam just after the second set of lobes (counting up from the pulley).
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peter030371
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| posted on 4/3/19 at 02:06 PM |
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Noddy question...maybe Flak Monkey can answer. I have new cams to fit and was going to get a used head to refurb, build up and then swap over in the
car once ready...however I have just read (and is makes sense looking at a few pictures on the interweb) that you have to remove the cams to get the
headbolts out on a Duratec. Is that correct?
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flak monkey
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| posted on 4/3/19 at 03:36 PM |
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quote:
Originally posted by peter030371
Noddy question...maybe Flak Monkey can answer. I have new cams to fit and was going to get a used head to refurb, build up and then swap over in the
car once ready...however I have just read (and is makes sense looking at a few pictures on the interweb) that you have to remove the cams to get the
headbolts out on a Duratec. Is that correct?
Yes you do. It's not a big deal though
Sera
http://www.motosera.com
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itsawindupuk
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| posted on 6/3/19 at 12:54 PM |
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I fitted the Kent cams D35 cams to mine. I did not use a key way in the crank as I won’t be running much off the pulley and race line said there was
no need either. The cams have 6 bolt holes for the verniers plus the centre bolt so that’s 7 bolts holding them on. I used a mild loctite too.
Ive not started the engine yet but I’m sure it’ll be fine.
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andyhaase1
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| posted on 17/3/19 at 03:15 PM |
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Not intending to hijack this thread, but my crank pulley bolt came undone while on the dyno, so now I have stripped the engine again with the
intention to drill the sprocket to pin it, but it’s too hard to drill, so I’m gonna have
to bite the bullet and get the crank machined and buy a keyed sprocket. SBD will do it but they are down south, can anyone recommend a machine shop up
north (pref west yorks) that will key my crank.
Andy.
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