Liam
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| posted on 1/7/06 at 09:26 PM |
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Running in an engine
Hello...
Stumbled upon this link on me tin-top forum and it's an interesting read. What do you knowledgable fellows think? Seems to make sense to me.
Not that I'd ever be stupid enough to buy a brand new car, but if i ever rebuild an engine should I thrash it straight away??
I declare this can of worms open. Discuss...
Liam
Oh yeah, the link...
Running in an engine
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gazza285
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| posted on 1/7/06 at 09:41 PM |
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Three words,
Bullshit baffles brains.
DO NOT PUT ON KNOB OR BOLLOCKS!
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JoelP
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| posted on 1/7/06 at 09:46 PM |
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id have to agree, his first paragraph is decidedly unscientific and the rest reads as waffle. Is he the same guy who had an article about porting
being bad for power? If so, he's just on a mission to argue with any accepted practice, right or wrong.
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gazza285
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| posted on 1/7/06 at 09:48 PM |
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Joel mate, how's me prop?
DO NOT PUT ON KNOB OR BOLLOCKS!
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JoelP
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| posted on 1/7/06 at 09:50 PM |
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its chillin'! you still want it?! 
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gazza285
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| posted on 1/7/06 at 10:45 PM |
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Yeh, just don't know when. Keep it cosy.
DO NOT PUT ON KNOB OR BOLLOCKS!
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greglogan
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| posted on 2/7/06 at 01:15 AM |
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I think I have to agree. I got a new Octavia TDi in November. My first brand new car. I couldn't resist giving it some the first day and
basically ever since. Now 8 months and 40000kms later she's flying. VERY torquey and very easy to run - upto 62 mpg if you're careful. I
have spoken to a friend who runs a Seat garage near me and he swears that softly softly does no good to an engine when new. He prefers to
"let'er at it." 
Women are meant to be loved, not understood.
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brynhamlet
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| posted on 2/7/06 at 06:19 AM |
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I use to race a prody bike. The usual practice to run in a newly rebuilt engine was to go to a practice session, do a couple of brisk laps and then
chase down something faster. Engines run perfectly all season, afterwards
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raccoonradar
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| posted on 2/7/06 at 09:47 AM |
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"There's a very small window of opportunity to get the rings to seal really well ... the first 20 miles !!"
That will be the road test after pdi then !
never seen a mechanic use the softly softly yet. good old thrash & race everything on the road, road test is quite normal
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mark chandler
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| posted on 2/7/06 at 11:26 AM |
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I,ve got to agree with the principle, my provisio is that for the first couple of hours you need to snap the engine to full load for a few seconds
only then back right off to allow the rings to drop pressure and oil to rise.
He makes it sound like you go flat out constantly for 15 minutes, 30 minutes 1/2 full blat 1/2 no throttle starting with 5 second blips and building
up is a better approach IMHO.
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quinnj3
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| posted on 2/7/06 at 11:40 AM |
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An ex mechanic who lives close by who is regarded as one of the best in my area in Tyrone always drives a new car hard. he changes car about every 2
years and almost always buys new. he reckons that it gives you more power. Again this is based on his opinion and on no scientific evidence.
I think this is a topic where everyones opinion will vary. My way of looking at it though is that manufacturers spend millions developing their
engines i think they are the ones who will know how to run in their engines best.
my aim is to build my own locost wether it takes me a week or 10 years to get started, i'm sure i will sometime
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Toady1
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| posted on 2/7/06 at 05:32 PM |
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i read this blokes web page a year or 2 ago, and tbh its very true imo what he says! ive run engines in in the past with the gentle route and after
10miles they needed freshening up and didnt produce the same sort of power after 10+k miles. The last 2 engines i ran in i did it hard, obviously
after it was warmed up, in fact the last one i did i warmed the oil up before starting the engine, and the engine produced excellent power. the way he
describes in his web page to run an engine in is how id do it from now on.
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Baldrick
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| posted on 3/7/06 at 02:15 AM |
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A colleague and I both got brand new company cars at the same time. He always drove quite sedately whilst I thrashed mine from day 1. When he drove
mine he always commented that it was much faster than his, likewise his felt very slow. Mind you two+ years later his was still fine but mine was an
old nail (140,000 miles) . I think it all depends on how long you intend to keep the car (and if you paid for it in the first case).
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owelly
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| posted on 3/7/06 at 03:09 AM |
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To be honest, I've not read all of that blokes waffling but.........
in the past, engines were built to within the nearest inch. These engine needed to be run in gentle to allow the runninmg surfaces to rub the bumps
away! Things have progressed and manufacturing tolerances have tightened dramatically. I was told during my apprenticeship at a Rover dealership, that
all engines were run in at the factory. I questioned this during a training session with some suit from HQ and he confirmed that all the engines were
spun up on compressed air.
Whilst on a training course (another job!) with Caterpillar, the recommended procedure for running in their engines was a good hard work out. Stop and
re-torque things. Another good whooping. Another torque and oil change and off into service.
I'm not sure what my point is, if there is one, but thats my disjointed view....
[Edited on 3/7/06 by owelly]
http://www.ppcmag.co.uk
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G.Man
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| posted on 3/7/06 at 04:09 AM |
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His system is exactly how I was taught to run in our race engines...
Its also exactly how we used to run in our race 2 strokes as well as the race superbikes...
Looks like sound advice to me
Opinions are like backsides..
Everyone has one, nobody wants to hear it and only other peoples stink!
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02GF74
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| posted on 5/7/06 at 01:50 PM |
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I'm sceptical. It sould be fairly easy to stick a compressed air line in t he spark plug and measure the leakage???
The rings will wear into the bore whther you trhash the engine or do it genlty and I can't see that the difference in seal is going to amount to
a noticeble difference in power.
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Toady1
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| posted on 6/7/06 at 08:15 PM |
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quote:
Originally posted by Baldrick
A colleague and I both got brand new company cars at the same time. He always drove quite sedately whilst I thrashed mine from day 1. When he drove
mine he always commented that it was much faster than his, likewise his felt very slow. Mind you two+ years later his was still fine but mine was an
old nail (140,000 miles) . I think it all depends on how long you intend to keep the car (and if you paid for it in the first case).
but i bet you also didnt let your engine warm up before spanking it did you? if you let it warm up prop 1st but still spanked it it would prob still
be pulling harder than your mates.
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Baldrick
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| posted on 7/7/06 at 02:58 AM |
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Probably not - it was way back in 1982!!!!
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Toady1
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| posted on 7/7/06 at 05:25 PM |
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