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Home > Help Needed / General Tech Chat > Wiped center main bearing | |||||||
![]() 12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
27th May, 2009 at 11:24:41pm
lol,
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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![]() 6965 Posts Member #: 507 Fastest A Series Mini in the World leeds/wakefield. |
27th May, 2009 at 11:27:27pm
On 27th May, 2009 mini13 said:
lol, point made carl... and you thought Castro and Hitler could talk,lol |
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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
27th May, 2009 at 11:28:53pm
lol still not any closer to finding the reason then lol
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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Forum Mod ![]() 5933 Posts Member #: 784 9 times Avon Park Class C winner Milton Keynes |
27th May, 2009 at 11:30:05pm
Carl, yes that was long.
I seriously doubt it! |
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![]() 6965 Posts Member #: 507 Fastest A Series Mini in the World leeds/wakefield. |
27th May, 2009 at 11:33:20pm
well i think the centre main has failed on the dyno and the drive home has finished it off, simple as that, |
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![]() 12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
27th May, 2009 at 11:34:42pm
any chance the car had some det on the rollers? 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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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
27th May, 2009 at 11:36:18pm
On 27th May, 2009 paul wiginton said:
Carl, yes that was long. How many miles had Don done? 4 - 500? Colins done 1200 could that be the difference. I killed mine in about 100 miles as the centre main was a bit tight Paul From the rebuild, the engine has done 300 miles. all parts were from the original build and were perfectly servicble and showed no signs of failure after 1200 or so miles even with shitty oil pressure and high oil temps. One thing I forgot to mention is that I used Millers CTV oil for the first time, so thats £40 wasted, lol 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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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
27th May, 2009 at 11:37:06pm
On 27th May, 2009 mini13 said:
any chance the car had some det on the rollers? ![]() 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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![]() 12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
27th May, 2009 at 11:38:45pm
no, seriously. 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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![]() 12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
27th May, 2009 at 11:38:46pm
no, seriously. 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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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
27th May, 2009 at 11:39:27pm
On 27th May, 2009 fastcarl said:
well i think the centre main has failed on the dyno and the drive home has finished it off, simple as that, Dont know if you seen it, but here it is again. This test run was the 85 at the wheels. the next run was the power run, and it showed 65!!, we let it cool and managed 73 http://www.youtube.com/watch?v=e80LZgyQqIo 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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Forum Mod ![]() 5933 Posts Member #: 784 9 times Avon Park Class C winner Milton Keynes |
27th May, 2009 at 11:41:01pm
I think Sprockets just fucking useless and cant build an engine properly. LOL
I seriously doubt it! |
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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
27th May, 2009 at 11:46:01pm
On 27th May, 2009 mini13 said:
no, seriously. The ECU has knock retard, the engine can take +4 degrees advance from MBT without any sign of knock but power suffers dramaticaly, the engine is only ever run on V Power with a reasonably low compression for the engine, fueling and ignition were optimised previously, logs show coolant and air temps were normal, igniton and fueling also showed as optimised. If this engine knocked, i would have known about it It did not suffer det :thumbsup: 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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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
27th May, 2009 at 11:46:41pm
On 27th May, 2009 paul wiginton said:
I think Sprockets just fucking useless and cant build an engine properly. LOL Paul Probably right lol 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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![]() 530 Posts Member #: 1192 Post Whore In the garage......again!! |
27th May, 2009 at 11:48:42pm
what happened around 2.14 in the vid? 133.5 bhp 123 lb torque 116mph @6640rpm 9.5psi
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![]() 6965 Posts Member #: 507 Fastest A Series Mini in the World leeds/wakefield. |
27th May, 2009 at 11:49:48pm
On 27th May, 2009 Sprocket said:
On 27th May, 2009 fastcarl said:
well i think the centre main has failed on the dyno and the drive home has finished it off, simple as that, Dont know if you seen it, but here it is again. This test run was the 85 at the wheels. the next run was the power run, and it showed 65!!, we let it cool and managed 73 http://www.youtube.com/watch?v=e80LZgyQqIo i think even with out viewing the vid you know the answer as the power loss it clear, the dyno opperator should have felt the nip and if he did and said nothing he's a bit naughty, carl |
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![]() 12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
27th May, 2009 at 11:51:05pm
fair enough,
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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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
27th May, 2009 at 11:57:23pm
On 27th May, 2009 mini13 said:
fair enough, i was just thinking of a smokey yunick theory about det ruining bearings, how high did the oil temp get with these bearings on the previous build? sorry for all the Q's just brainstorming really, The gauge scale maxes out at 120, I only ever seen oil temps as high as that for short period on the dyno when mapping. it ran 110/ 115 only when you gave it a good thrashing 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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![]() 85 Posts Member #: 2234 Advanced Member Palm Beach Gardens, Florida |
28th May, 2009 at 12:07:52am
I would guess that you experienced an imbalance that could not be felt while on the dyno. When it gets bad enough the center of the crank oscillates. You should have this crank checked for straightness now. Can you comment on how, and how well, the rotating and reciprocating parts were balanced? Were you using a stock or modified harmonic damper? |
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![]() 2909 Posts Member #: 83 Post Whore Glasgow, Scotland |
28th May, 2009 at 12:16:56am
the engine i ran at avon last year had a stiff main bearing, the engine was impossible to turn by hand unless a bar was used with just the mains torqued up, as a "new" bottom end is £50 for me i didnt really give a fuck about it and kept running it. eventually retiring it after cracking a piston ring land. the bearing was heavily"polished" (can get pics if you want!?) but otherwise was ok. your problem is more likely to be down to oil starvation or a foreign object IMHO :) but most likely oil starvation. the centre main feeds 2 big ends on the A where as the other mains only feed one?(hope im right, been a while) so if the crank rotating is pumping oil put to the big ends by centrefugal force, the centre main has twice the flow leaving it than the outer mains do. so if there is interuptions in the flow itll suffer first. just a thought! turbo 16v k-series 11.9@118.9 :)
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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
28th May, 2009 at 12:18:49am
Crank was balanced as far as the machine can measure, on the fine setting. Pistons are all within 1 gram of each other. I would hope that the rods are correctly balanced end to endas they are H section from a well known source, they are all the same weight, but that is not what matters, i know. The crank damper is the standard MPi item, with the trigger wheel fitted to the outer edge.
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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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
28th May, 2009 at 12:21:45am
On 28th May, 2009 evolotion said:
the engine i ran at avon last year had a stiff main bearing, the engine was impossible to turn by hand unless a bar was used with just the mains torqued up, as a "new" bottom end is £50 for me i didnt really give a fuck about it and kept running it. eventually retiring it after cracking a piston ring land. the bearing was heavily"polished" (can get pics if you want!?) but otherwise was ok. your problem is more likely to be down to oil starvation or a foreign object IMHO :) but most likely oil starvation. the centre main feeds 2 big ends on the A where as the other mains only feed one?(hope im right, been a while) so if the crank rotating is pumping oil put to the big ends by centrefugal force, the centre main has twice the flow leaving it than the outer mains do. so if there is interuptions in the flow itll suffer first. just a thought! My thought as well, but why the pulsing oil pressure? New oil pump on order anyway 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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326 Posts Member #: 1323 Senior Member |
28th May, 2009 at 01:01:49am
did the brgs turn
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280 Posts Member #: 4340 Senior Member sideways, Birmingham |
28th May, 2009 at 01:27:50am
this makes an interesting read, however no one seems to have mentioned the gearbox O ring as a cause.
Edited by MONSTER HEDGEHOG on 28th May, 2009.
On 15th Dec, 2009 fastcarl said:
sell the lot to me for £70 pounds and i'll let you stand on the outside edge and look on my inner circle of closest frinds, lol carl FOR EVERY WELL THOUGHT OUT AND WELL EXECUTED PRICISION JOB EVER CONCIEVED, YOU CAN GUARANTEE THAT SOMEWHERE IN WALSALL OR THE BLACK COUNTRY THERE WILL BE A BLOKE TRYING TO ACHIVE THE SAME BY MEANS OF "ITIN IT WI LUMP AMAR" |
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![]() 9319 Posts Member #: 59 First mini turbo to get in the 12's & site perv Herefordshire |
28th May, 2009 at 01:30:16am
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