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5th May 2019, 09:22 | #31 | |
I really should get out more.......
Rover 75 CDT Club Tourer Join Date: Nov 2006
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Quote:
race engines are for winning races, they are stripped down at the end of each race and each component is examined under the microscope!. Last edited by grivas; 5th May 2019 at 09:24.. Reason: additional info |
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5th May 2019, 20:38 | #32 |
Posted a thing or two
mg zt Join Date: Mar 2014
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Really? Only the money no issue, no engine rules formula. Most people racing couldn't afford rebuilds after each meeting, let alone each race.
Running in for one of my race engines would be as many warm up cycles as you could get in, wide ranging rpms, no idling (does more damage than anything), check everything possible - leaks, tightness etc, drop the oil and filter, replace then away. Rebuild when it had an issue. Now, if this were a BDG or similar for a customer, the builder would life it, in hours, a bit like you describe above. But that would be because the potential cost of a failure would be many times the cost of a rebuild. I guess what I'm saying is the rules are there are no rules... |
6th May 2019, 09:59 | #33 | |
I really should get out more.......
Rover 75 CDT Club Tourer Join Date: Nov 2006
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Quote:
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6th May 2019, 12:26 | #34 | |
This is my second home
R75 Saloon. Join Date: Feb 2009
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Quote:
I spent five years as an apprentice toolmaker for an aircraft company. I was trained to use every tool and machine in the workshop and manufactured parts to a tolerance of a tenth of a thou. I call you and raise you £50.00--------- |
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6th May 2019, 12:32 | #35 |
This is my second home
R75 Saloon. Join Date: Feb 2009
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6th May 2019, 13:36 | #36 |
Posted a thing or two
Ex-ZI190 owner. ,Ford Focus RS Join Date: Nov 2006
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What Ford say....
Ford Focus users manual recommends the following:-
I quote"Don't drive too fast for first 1000 miles. Vary speed frequently and change up through gears early. Do not labour the engine." |
7th May 2019, 06:15 | #37 | ||
This is my second home
Rover 75CDT, Jaguar XF-S 3.0V6, V'xhall Omega V6 Estate, Twintop 1.8VVT, Astra Estate and Corsa 1.2 Join Date: Dec 2007
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Quote:
Besides - only five years - you really should have completed the apprenticeship. Quote:
How many new car engines do you know about that have seized as a result of localised hotspots? Last edited by MSS; 7th May 2019 at 06:19.. |
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7th May 2019, 09:49 | #38 |
Posted a thing or two
Rover 75 Connie Mk2 1.8 (Mo) Join Date: Feb 2017
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This reminds me of when my dad worked at Firth Browns. He said that the Germans sent them a wire that was the thinnest they'd ever seen. So dads workshop drilled a hole down the middle and sent it back.
__________________
Mo was born Tuesday, 22nd June 2004 @ 08:32:41 This vehicle was the 99,307th 75 to run off the production line, out of 112,381 This vehicle was the 5,377th 75 1.8 Connoisseur to be made out of 6,033 This vehicle was the 783rd 75 in Firefrost Red (code: CEV) to be made out of 2,089 Firefrost Red 75s |
8th May 2019, 12:59 | #39 | |
This is my second home
R75 Saloon. Join Date: Feb 2009
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I'm very glad to see you do take on board the things I say. Lol. More power to your Gillhoolie.--- |
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8th May 2019, 23:52 | #40 |
Posted a thing or two
Rover 75 Saloon Join Date: Dec 2017
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Let's face it, modern computer controlled equipment works to far closer tolerances and at higher honing speeds, lasers quality and accuracy check all parts automatically, so the engine of a modern, cheap mass produced car needs little of the care that 60's and 70's engines needed. Bores and crank/con rod bearings in those days, could easily hot spot if worked hard before the roughness of the machining had been honed smooth by the normal movement of the parts, and allowing the oil to permeate the microporous surfaces. Working a tight, new engine too hard would overheat the high spots, causing localised melting, heat distortion and partial (and occasionally complete) seizure of the engine.
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