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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » Pistons Question » Post Reply
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Siberia |
posted on 28th Oct 04 at 22:09 |
hmmm... i dunno my engine makes noise taps when its started i just dont bother looking at it... arnt c16xe's suposed to make a certian amout of noise? | |
ainsley_brader |
posted on 28th Oct 04 at 21:35 |
mmm i'd like to know how he came by the diagnosis! | |
Gsi_Ire |
posted on 28th Oct 04 at 21:12 |
couldnt tell you, i aint the most mechanical minded person. | |
ainsley_brader |
posted on 28th Oct 04 at 21:09 |
What makes him think its piston? i'm sceptical | |
Gsi_Ire |
posted on 28th Oct 04 at 20:55 |
with tick over, seems less with revs, but that might just be cause its tapping faster :( | |
ainsley_brader |
posted on 28th Oct 04 at 18:34 |
Hmm | |
miles |
posted on 28th Oct 04 at 18:14 |
Head is fine. | |
Siberia |
posted on 28th Oct 04 at 15:00 |
Soooooooooooo standard internals except some arps and 7500 is ok? | |
Greasemonkey |
posted on 28th Oct 04 at 14:31 |
aahhh, yeah forgot to mention that, but think thats a decent figure to have even with them mods, seems it gets a little expensive after 8K, lol | |
James R |
posted on 28th Oct 04 at 14:20 |
Oh and it's gonna be cheaper to buy a lower milage bottom end £100 and swap it than a £400 rebuild ;) | |
James R |
posted on 28th Oct 04 at 14:20 |
78.95mm ;) | |
Stu_22 |
posted on 28th Oct 04 at 14:01 |
79mm | |
Siberia |
posted on 28th Oct 04 at 13:59 |
what size are standard c16xe pistons? | |
Greasemonkey |
posted on 28th Oct 04 at 13:49 |
you can cut 2mm valve pockets into the standard pistons to accept the lift J1400 was talking about, it might be worth sticking some oversized pisons in 79.5 ones, this will give you about 25cc extra which means more tourqe, my C16XE managed 139lb of tourqe and that was with oversized pistons with 2mm valve pockets cutin to em | |
Gsi_Ire |
posted on 28th Oct 04 at 13:15 |
Well, i got a tap, bad in the mornin, not so bad as the day goes. he is fairly confident its the piston, so he wants to drop the sump out and check. dont ask anymore, cause i just dont know :) | |
Siberia |
posted on 28th Oct 04 at 13:13 |
quote: how is this done???? | |
Stu_22 |
posted on 28th Oct 04 at 13:12 |
quote: Yeah. What your mechanic saying are you sure its not just the rings. But as J1400 said while its all out the standard pistons can have the valve cut outs enlaged for slightly lumpier cams ca they dont crach together | |
Siberia |
posted on 28th Oct 04 at 13:11 |
i'd just use standard parts there good up to 7500-7600RPM..... | |
Gsi_Ire |
posted on 28th Oct 04 at 13:05 |
well i dont understand a word, so basicly, its not worth it or neede unless i do a sh*t load of work to the engine, and the mechanic said he couldnt be sue till he took it out. | |
Siberia |
posted on 28th Oct 04 at 12:57 |
quote: :lol: some people may not understand all that... if you had of said all that to me a few months ago wouldnt have know what the feck yer on about:lol: | |
Siberia |
posted on 28th Oct 04 at 12:55 |
uprated pistons... well SBD ones cost the earth :( if you find cheap uprated ones though let me know.... | |
James R |
posted on 28th Oct 04 at 12:54 |
You can't really tell if they need changing till they are out rhe block and measured to see how worn they have become. | |
Gsi_Ire |
posted on 28th Oct 04 at 12:50 |
My mechanic reckons i need to replace a piston, he cant be sure till he has a look at it ofc, but assuming he is right it will cost bout £200. |