Post #1
So, iv had the bottom end rebuilt on the dimma and want to run it in for 100 miles or so before using the royal purple oil, would you suggest using a breaking in oil or just a decent oil?
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displaying posts 1 to 15 of 15
| Author | Subject: breaking in oil |
 pugheaven
Seasoned Pro  Location: Fareham Registered: 17 Dec 2006 Posts: 4,602 Status: Offline |
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 Posted 21st Feb 2015 at 20:47
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pete_rallye
Seasoned Pro  Location: Yorkshire Registered: 12 Dec 2002 Posts: 5,253 Status: Offline |
Post #2
Comma do a running in oil that is like water, but I usually use cheap thin oil, like Asdas own brand or something. Keep the revs up around 2-4k for the first twenty minutes to create decent pressure behind the rings, but don't hold the revs at a certain speed. Be safe to drive to with the thin stuff in it but I wouldn't give it full beans. ________________________________________ Oulton Park in a BTCC 306 vid 1Oulton Park in a BTCC 306 vid 2 Lap of the 'ring |
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Posted 21st Feb 2015 at 20:55
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jeffers
Forum Admin Location: Leeds Registered: 14 Dec 2003 Posts: 3,702 Status: Offline |
Post #3
Be aware running in should be done using a mineral oil, semi and fully synth are too refined and actually arrest the breaking in of the rings in the bores which can lead to burning oil and ur engine being down on power due to lost compression. I did a fair bit of research on this subject last year for breaking my own engine in, there are varying opinions out there but the one that is common was using a mineral oil to assist breaking the rings in, remember bottom end bearings run on a film of oil so really require no breaking in, it's all to do with breaking the rings into the bores.  ________________________________________ Team Running Engine again!Team Negative Camber! My Budget track engine build thread! Now appearing at a Trackday near you!!  |
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Posted 22nd Feb 2015 at 08:34
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pugheaven
Seasoned Pro Location: Fareham Registered: 17 Dec 2006 Posts: 4,602 Status: Offline |
Post #4
The rings were not changed, just the bearings that need it really, I noticed rp do a breaking in oil so was thinking about using that, it's more to flush the engine of all deposits during the first 100 or so miles |
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Posted 22nd Feb 2015 at 09:09
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fatlapit
Seasoned Pro  Location: STOCKSFIELD Registered: 02 Nov 2010 Posts: 3,040 Status: Offline |
Post #5
rich w told me 10 40 semi for running in then use rp bud. well thats what ive done and mines spot in ________________________________________ |
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Posted 22nd Feb 2015 at 09:31
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clen666
Seasoned Pro  Location: Co. Durham Registered: 12 Feb 2009 Posts: 2,401 Status: Offline |
Post #6
What happens if you have new piston rings but also new camshafts? I've read that camshaft bedding in should have the rpm held between 2-2.5k, but for correct piston ring sealing then engine needs to be under load and the rpm varied? ________________________________________ Team 'unintentional rat look' |
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Posted 22nd Feb 2015 at 10:07
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fatlapit
Seasoned Pro Location: STOCKSFIELD Registered: 02 Nov 2010 Posts: 3,040 Status: Offline |
Post #7
same mate my engine is brand new________________________________________ |
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Posted 22nd Feb 2015 at 10:22
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jeffers
Forum Admin Location: Leeds Registered: 14 Dec 2003 Posts: 3,702 Status: Offline |
Post #8
pugheaven wrote: The rings were not changed, just the bearings that need it really, I noticed rp do a breaking in oil so was thinking about using that, it's more to flush the engine of all deposits during the first 100 or so miles Just use a semi then mate, as said breaking in is more about bedding rings in, if they're not new you should be fine. ________________________________________ Team Running Engine again!Team Negative Camber! My Budget track engine build thread! Now appearing at a Trackday near you!! |
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Posted 22nd Feb 2015 at 13:00
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allanallen
Seasoned Pro  Location: Buxton Registered: 01 May 2007 Posts: 1,399 Status: Offline |
Post #9
Ollie, if it's just had new bearings it doesn't need bedding in. Rings and cams are the only thing that require bedding in in an engine. If you want to flush the engine I'd personally just use 5/30 mineral oil or similar. Clen666, in an ideal world you'd bed the rings in with used cams, you'd then fit your new cams and bed those in. If this isn't possible you HAVE to bed the cams in first which as you've already pointed out isn't ideal for the rings which need loading up. ________________________________________ www.bridgecraftmotorsport.co.uk |
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Posted 22nd Feb 2015 at 13:06
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #10
I used 10w40 cheap semi stuff for the first 50 miles on mine and then changed for the same stuff until 500 miles when I dropped it again and then used RP.Always been spot on. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 22nd Feb 2015 at 15:08
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adam b
Seasoned Pro  Location: The Nam Registered: 24 Jan 2006 Posts: 12,828 Status: Offline |
Post #11
We use Joe Gibbs break in oil. From Anglo-american________________________________________ Nothing to see here |
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Posted 22nd Feb 2015 at 19:22
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pete-gti
Seasoned Pro  Location: Kent Registered: 15 Feb 2009 Posts: 1,297 Status: Offline |
Post #12
I've just used 10w40 cheap stuff , then 100 miles royal purple be going in this what rich said to do |
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Posted 9th Mar 2015 at 21:43
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Mossy1985
Senior User Location: Darlington Registered: 04 Nov 2014 Posts: 545 Status: Offline |
Post #13
Sorry to thread steal but where can i get some RP from? |
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Posted 9th Mar 2015 at 21:46
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pete-gti
Seasoned Pro Location: Kent Registered: 15 Feb 2009 Posts: 1,297 Status: Offline |
Post #14
Richw be best bet , or online few company's do it |
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Posted 9th Mar 2015 at 21:52
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Mossy1985
Senior User Location: Darlington Registered: 04 Nov 2014 Posts: 545 Status: Offline |
Post #15
Cheers Pete, what does an oil change worth cost? |
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Posted 9th Mar 2015 at 21:56
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