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 141 Posts Member #: 7891 Advanced Member Annapolis, MD USA |
28th Mar, 2011 at 11:43:35pm
Been thinking that I've been an idiot and totally incompetent about this for a while now. When I rebuilt my motor about a year ago to put the 7 port head on, I changed to a 276 cam (got rid of the scatter) and upgraded to a Mini-Spares belt drive setup. Well, I've felt like I've never been able to get the cam timing right on this thing. Tried for a day when built, was finally half way happy, ran the motor a bit, re-tried timing, was half way happy again. I was never able to seem to adjust the timing, even though I have the dowel adjustable setup. Pulled the motor this week to do the coilover conversion and fuel injection and figured I really needed to figure out this cam timing. I've had crap bottom end power since the 7 port install, but ok on the top. In any case, I re-checked the cam timing before I changed anything and I was at 97 degrees....should be 106 on my cam... Eric
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 12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
28th Mar, 2011 at 11:46:45pm
LOL How the hell did they manage that! On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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 9502 Posts Member #: 1023 Post Whore Doncaster, South Yorkshire |
29th Mar, 2011 at 12:12:36am
yes problem found hahaha Yes i moved to the darkside |
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 7765 Posts Member #: 74 I pick holes in everything.. Chief ancient post excavator |
29th Mar, 2011 at 12:24:37am
Haha, fantastic :) On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem. |
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Forum Mod  5933 Posts Member #: 784 9 times Avon Park Class C winner Milton Keynes |
29th Mar, 2011 at 07:03:31am
The vernier adjustable one is much better. Dowels are always shit I seriously doubt it! |
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 6753 Posts Member #: 828 Post Whore uranus |
29th Mar, 2011 at 09:11:35am
so are you now criticising your powers of observation eric ? Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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 9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
29th Mar, 2011 at 09:41:22am
Mine are all nicely offset, but it was still a total pain to get the timing setup. Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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7765 Posts Member #: 74 I pick holes in everything.. Chief ancient post excavator |
29th Mar, 2011 at 10:52:42am
On 29th Mar, 2011 paul wiginton said:
The vernier adjustable one is much better. Dowels are always shit Why Paul? I've always found the Minispares' dowel version great. Weight? On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem. |
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Forum Mod 5933 Posts Member #: 784 9 times Avon Park Class C winner Milton Keynes |
29th Mar, 2011 at 11:00:26am
Loose fitting dowels, and pain in the arse to do I seriously doubt it! |
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141 Posts Member #: 7891 Advanced Member Annapolis, MD USA |
29th Mar, 2011 at 11:49:32am
Quality of the unit as for fit and finish are very good...dowel fits tight and everything seals well....just a bit hard to adjust when there is no offsett in the holes!
Eric
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141 Posts Member #: 7891 Advanced Member Annapolis, MD USA |
29th Mar, 2011 at 12:06:17pm
On 29th Mar, 2011 robert said:
so are you now criticising your powers of observation eric ?  Yes, robert....definitely made this harder than it should be....  I hate it when I can't figure out something that should really be somewhat simple.
Fortunately this should really help my bottom end power that I was complaining about before with the 7 port swap... 
Eric
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 6729 Posts Member #: 618 Post Whore Glasgow |
29th Mar, 2011 at 12:10:33pm
at least you can see the problem - nothing worse than the unknown! |
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141 Posts Member #: 7891 Advanced Member Annapolis, MD USA |
29th Mar, 2011 at 01:24:13pm
On 29th Mar, 2011 Rob Gavin said:
at least you can see the problem - nothing worse than the unknown! YES...I do enjoy when I find a factual solution to a problem....I guess I just never considered a manufacturing error when trying to sort this out. I always used a chain drive before, so I never really considered how much or little offset there should really be with the dowel holes. Live and learn...and share so others don't go crazy too....:) Eric
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 11046 Posts Member #: 965 Post Whore Preston On The Brook |
29th Mar, 2011 at 01:26:17pm
What if you were to rotate the outer section 180 degrees in relation to the center? On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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141 Posts Member #: 7891 Advanced Member Annapolis, MD USA |
29th Mar, 2011 at 01:30:40pm
On 29th Mar, 2011 Sprocket said:
What if you were to rotate the outer section 180 degrees in relation to the center? They still all line up 100% perfect....on my bodge style adjustment, I did move the outer gear from the belt and was able to get to 103 degrees....glad I kept on and didn't just settle! Eric
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141 Posts Member #: 7891 Advanced Member Annapolis, MD USA |
14th Apr, 2011 at 01:51:59am
Just a follow up...got a replacement inner gear from my supplier here in the U.S. Said they talked to the MiniSpares folks and it was admitted that there were a few kits supplied with the inner and outer cam gear that were milled identically to each other. New part is installed and timed to 106! Looking forward to LOTS more low end power now as I was about 9 degrees off on cam timing.
Eric
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6753 Posts Member #: 828 Post Whore uranus |
14th Apr, 2011 at 06:56:45am
a graph of before and after would be fascinating eric . Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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Got a new gear on the way and hopefully an ass load of bottom end power with it!| Page: |