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Installing 900-based cams in Pantah-era heads http://ducatittandf1.com/viewtopic.php?f=10&t=12245 |
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Author: | huit [ Wed Oct 25, 2023 7:13 am ] |
Post subject: | Re: Installing 900-based cams in Pantah-era heads |
Thanks Mike, I am putting 900 ss cams in my pantah project, heads are shimmed so I can now compare mine to your photos. Paul |
Author: | Carlo [ Sat Oct 28, 2023 5:58 pm ] |
Post subject: | Re: Installing 900-based cams in Pantah-era heads |
hi mike, I think you are doing a great job, I'm happy that my spare parts help you in this project |
Author: | huit [ Tue Nov 07, 2023 5:21 pm ] |
Post subject: | Re: Installing 900-based cams in Pantah-era heads |
Mike, this may be a real dumb question…. Using adjustable pulleys wouldn’t it be just as simple to use the adjustment of the pulley to put you back to the stock timing mark rather that put other marks on the head? Paul |
Author: | 618F1 [ Tue Nov 07, 2023 8:31 pm ] |
Post subject: | Re: Installing 900-based cams in Pantah-era heads |
Aren’t they a long way off? Look at the key slot placement on stock Pantah-based cams. Lay them side-by-side. Very different between the H and the V. And now you are going to use two H cams. How can you use the pulleys without a new mark on one of them? The mark is either 160 or 200 degrees off (if you are AC or DC - lousy joke). What have I missed? But this is what I had hoped for. Some discussion. Maybe a better way. MikeV |
Author: | huit [ Tue Nov 07, 2023 11:29 pm ] | ||||
Post subject: | Re: Installing 900-based cams in Pantah-era heads | ||||
A couple of photos First photo note the position of the key way and the timing mark. Second 900ss cam Third stock head and cam
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Author: | huit [ Tue Nov 07, 2023 11:37 pm ] |
Post subject: | Re: Installing 900-based cams in Pantah-era heads |
Too bad we are so far apart! |
Author: | 618F1 [ Wed Nov 08, 2023 1:28 am ] |
Post subject: | Re: Installing 900-based cams in Pantah-era heads |
Yes, it is. A bird in the hand……. The photos do not clear things up for me. Are these all stock setups? Or is one of them a Pantah head with a 900 cam in it? If not, the proof will come when you do that. I think the problem is that the keyways on all H/V cam sets are in different places, and you cannot simply move an H cam to the V position and expect it to work. Even using two Pantah H cams causes the same kind of problem. Otherwise, why are they marked with an O and a V? Does it matter? MikeV |
Author: | 618F1 [ Wed Nov 08, 2023 2:06 am ] |
Post subject: | Re: Installing 900-based cams in Pantah-era heads |
Paul. If the head (1985) with the adjustable pulley is on a 900 cam in a Pantah head did you pull that cog apart and spin the outside around for a new alignment mark? I am puzzled. You may have been lucky, but what about pulleys with only three bolts, or with none? Have I made the simple complicated? MikeV |
Author: | huit [ Wed Nov 08, 2023 8:07 am ] |
Post subject: | Re: Installing 900-based cams in Pantah-era heads |
Mike, Yes that is what I did, the last photo is a pantah cam and a vertical head for reference to show intake valve position when the mark on the pulley linesvwith the dot on the rubber shroud. The middle picture is a 900 cam with the pulley taken apart then rotated to approximately the same place to be verified when checking cam timing. Hope that makes sense now? Paul |
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