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| Home > Help Needed / General Tech Chat > Minor pitting on my just bought omega forged pistons | |||||||
 3673 Posts Member #: 9300 Post Whore Quarry Bonk |
7th Nov, 2011 at 09:15:19pm
I dont really see this as a problem for what these cost me, but im unsure as to whether or not i ignore this, sand it out myself to remove the high spots, or get the crown's of all 4 machined down to remove the pitting on the one, and balance the rest.
On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
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4309 Posts Member #: 1321 Post Whore Wiltshire |
7th Nov, 2011 at 09:17:54pm
ignore it! On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding |
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3673 Posts Member #: 9300 Post Whore Quarry Bonk |
7th Nov, 2011 at 09:22:39pm
What i wanted to hear anyway! Its only that small area on that one piston.
On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
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 824 Posts Member #: 2065 Post Whore Wiltshire |
8th Nov, 2011 at 08:15:53am
I think ignoring it might be a little stupid! If there are high spots they could lead to detonation in the engine you put them in. If it were me and I was having them dished any ways I would have that machines off and get the others matched. The sides are as important if there are marks or high spots they could lead to bore damage as the piston crown expands with heat.
On 7th Nov, 2011 apbellamy said:
Shaft seems nice and snug On 24th Mar, 2012 apbellamy said:
no no no no, you need more boost! you can never ever come on here and say I have enough boost, that's just silly. On 29th Mar, 2010 Star Mag said:
these give no problems with good head |
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 16540 Posts Member #: 4241 King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner Rotherham, South Yorkshire |
8th Nov, 2011 at 08:21:02am
How can high spots cause detonation? They aren't high enough to effect the CR that much. On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it 
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318 Posts Member #: 9408 Senior Member Tiptree, Essex |
8th Nov, 2011 at 08:33:01am
They cause hot points for ignition www.topcatcustom.co.uk |
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824 Posts Member #: 2065 Post Whore Wiltshire |
8th Nov, 2011 at 08:40:26am
On 8th Nov, 2011 topcat said:
They cause hot points for ignition Exactly On 7th Nov, 2011 apbellamy said:
Shaft seems nice and snug On 24th Mar, 2012 apbellamy said:
no no no no, you need more boost! you can never ever come on here and say I have enough boost, that's just silly. On 29th Mar, 2010 Star Mag said:
these give no problems with good head |
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16540 Posts Member #: 4241 King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner Rotherham, South Yorkshire |
8th Nov, 2011 at 08:47:13am
The damage on that piston is pitting though. Just dress it with a file and ignore it. On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it
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3673 Posts Member #: 9300 Post Whore Quarry Bonk |
8th Nov, 2011 at 09:50:51am
Well, the deciding factor is whether or not i need the pistons dished ill have them surface ground, if not ill file the surface flat. I don't think det is too much of a problem as ill be lowering the cr slightly more than i need to, i always run bp ultimate or equivalent, and i have a 4x4 intercooler if that makes any difference, will probably run around 15psi on a t3 or gt17 at a later date. I could be talking bollocks but the engine wont be pushed too much, perhaps around 170bhp at a guesstimate? On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
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3673 Posts Member #: 9300 Post Whore Quarry Bonk |
8th Nov, 2011 at 10:00:52am
Also be running MJ On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
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