Pulled motor, yanked pistons, check out what I found
03-17-2005, 07:47 PM
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Pulled motor, yanked pistons, check out what I found
I know, I know. These type of pics have been seen before. But here's my contribution.
Stock B16A2 in an EM1
.5 Bar on a 57 trim
4th gear highway pull for about 10-15 seconds did this.
Importbuilders.com here I come. Enjoy
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Modified by IslandSi at 1:06 PM 3/21/2005
Stock B16A2 in an EM1
.5 Bar on a 57 trim
4th gear highway pull for about 10-15 seconds did this.
Importbuilders.com here I come. Enjoy
Modified by IslandSi at 1:06 PM 3/21/2005
03-18-2005, 03:42 AM
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Re: Pulled motor, yanked pistons, check out what I found (IslandSi)
i'm doin a comp. test on my stock B16 today to try and see if this happened to me too, my egt's have been low lately 
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03-18-2005, 04:46 AM
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Re: Pulled motor, yanked pistons, check out what I found (m R g S r)
you think they are aight.
I have had 230+ compression already and no signs of leakdown or compression loss and pulled pistons to have the rng lands actually break in my hands.
you find out alot more when you ripp them apart
I have had 230+ compression already and no signs of leakdown or compression loss and pulled pistons to have the rng lands actually break in my hands.
you find out alot more when you ripp them apart
03-18-2005, 06:47 AM
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Re: Pulled motor, yanked pistons, check out what I found (VTC_omgihavetorque_CiViC)
At least you pulled the pistons while the block is still usable...
Time for a rebuild!
Were you tuned? You wouldn't think that would happen on only .5bar unless you are untuned... what were you doing for 15sec in 4th gear anyways? Don't you know that's baaaad?
Time for a rebuild!
Were you tuned? You wouldn't think that would happen on only .5bar unless you are untuned... what were you doing for 15sec in 4th gear anyways? Don't you know that's baaaad?
03-18-2005, 07:39 AM
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Re: Pulled motor, yanked pistons, check out what I found (EJ1 wilcox)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EJ1 wilcox »</TD></TR><TR><TD CLASS="quote">what were you doing for 15sec in 4th gear anyways? Don't you know that's baaaad?
</TD></TR></TABLE>
I don't think 4th gear pulls are necessarly bad...it's just that you are in boost for a hell of a lot more time and your EGTs will slowly go way up and since the ringlands are pretty weak on honda engines....boom.
everytime I see pics or hear of blown engine it's usually a 4th or 5th gear pull that is the culprit.....
. Personally I never boost in fourth or fith unless is a quarter mile run, just too much risk....anyone agree?
</TD></TR></TABLE>
I don't think 4th gear pulls are necessarly bad...it's just that you are in boost for a hell of a lot more time and your EGTs will slowly go way up and since the ringlands are pretty weak on honda engines....boom.
everytime I see pics or hear of blown engine it's usually a 4th or 5th gear pull that is the culprit.....
. Personally I never boost in fourth or fith unless is a quarter mile run, just too much risk....anyone agree?
03-19-2005, 03:58 PM
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Re: Pulled motor, yanked pistons, check out what I found (rioninja)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rioninja »</TD></TR><TR><TD CLASS="quote">Bad tune killed that one for sure... </TD></TR></TABLE>
Not denying that. But like I said, I needed an excuse to rebuild that motor and now I have it.
All that happened on a pretty crappy ueberdata map. Trial and error at it's best/worst.
Modified by IslandSi at 1:42 PM 3/21/2005
Not denying that. But like I said, I needed an excuse to rebuild that motor and now I have it.
All that happened on a pretty crappy ueberdata map. Trial and error at it's best/worst.
Modified by IslandSi at 1:42 PM 3/21/2005
03-19-2005, 05:11 PM
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Re: Pulled motor, yanked pistons, check out what I found (Mpir3)
i used to do 4th gear and 5th gear pulls all the time with my stock b16.. never blew though. oh yeah i was untuned using a 12:1 FMU and 255lph intank pump @ 7psi.
are you sure the vacuum hose to your wastegate didnt melt or something?
are you sure the vacuum hose to your wastegate didnt melt or something?
03-20-2005, 08:36 PM
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Re: (IslandSi)
Wow that is bad! I ran 15 PSI on a stock GSR motor for about a week before one little 1 inch section cracked and blew oil all out the block breather. Get 'er rebuilt and tuned! 
03-20-2005, 10:42 PM
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Re: Pulled motor, yanked pistons, check out what I found (adseguy)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by adseguy »</TD></TR><TR><TD CLASS="quote">
Personally I never boost in fourth or fith unless is a quarter mile run, just too much risk....anyone agree?</TD></TR></TABLE>
No, I think that if the car is tuned properly for the setup that is has, you should be able to do 4th and 5th gear pulls all day long.
Personally I never boost in fourth or fith unless is a quarter mile run, just too much risk....anyone agree?</TD></TR></TABLE>
No, I think that if the car is tuned properly for the setup that is has, you should be able to do 4th and 5th gear pulls all day long.
03-21-2005, 04:09 AM
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Re: Pulled motor, yanked pistons, check out what I found (96-EJ6 B18C)
Ive just done a track day with straights that you can get upto about 130+ on and had no problems. I took it steady and was only running 0.6 on arias pistons, steel rods but how safe is that? my a/f is between 11.3 and 11.8 so its pretty safe.
03-21-2005, 05:06 AM
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Re: Pulled motor, yanked pistons, check out what I found (Sunlight)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sunlight »</TD></TR><TR><TD CLASS="quote">Are there any signs without taking the engine apart?
Hows the vaccum at idle?</TD></TR></TABLE>
Yeah. Do a compression test. When I did it my #1 had 140 psi, #'s 2 and 3 wouldn't hold anything at all but would blip up to 15 or so on the compressioin stroke, and my #4 had a whopping 40 psi.
I was also shooting oil all out of my valve cover breather like nfn15037 was saying.
Oh yeah, and your entire engine bay will be a hell of a lot hotter that it usually would be after driving. I'm guessing that's from the heat from the combustion blowing by the rings and down into the crank case? I don't know. All I know is that it "felt" all wrong.
Hows the vaccum at idle?</TD></TR></TABLE>
Yeah. Do a compression test. When I did it my #1 had 140 psi, #'s 2 and 3 wouldn't hold anything at all but would blip up to 15 or so on the compressioin stroke, and my #4 had a whopping 40 psi.
I was also shooting oil all out of my valve cover breather like nfn15037 was saying.
Oh yeah, and your entire engine bay will be a hell of a lot hotter that it usually would be after driving. I'm guessing that's from the heat from the combustion blowing by the rings and down into the crank case? I don't know. All I know is that it "felt" all wrong.
03-21-2005, 05:15 AM
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Re: Pulled motor, yanked pistons, check out what I found (IslandSi)
Thank You. My motor just went from 21hg/in vaccum at idle then went to 15.
No leaks or anything and the engine runs smoothly but with a lesser engine response
No leaks or anything and the engine runs smoothly but with a lesser engine response
03-21-2005, 05:40 AM
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Re: Pulled motor, yanked pistons, check out what I found (Sunlight)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sunlight »</TD></TR><TR><TD CLASS="quote">Thank You. My motor just went from 21hg/in vaccum at idle then went to 15.
No leaks or anything and the engine runs smoothly but with a lesser engine response</TD></TR></TABLE>
Could be I guess. My vacuum was off by about 8", running about 13-14. The car was harder to start up as well because there was no compression on cylinders 2 and 3. Also the car made a very distinct "blup blup blup" sound when you stood behind the car and listened to the exhaust. Run your finger along the inside of the tail pipe. I had an oiuly residue in mine. Which could have come from the blown turbo seal I guess too.
Anyway, do a compression test and see what you get. It's the easiest way to start.
No leaks or anything and the engine runs smoothly but with a lesser engine response
</TD></TR></TABLE>Could be I guess. My vacuum was off by about 8", running about 13-14. The car was harder to start up as well because there was no compression on cylinders 2 and 3. Also the car made a very distinct "blup blup blup" sound when you stood behind the car and listened to the exhaust. Run your finger along the inside of the tail pipe. I had an oiuly residue in mine. Which could have come from the blown turbo seal I guess too.
Anyway, do a compression test and see what you get. It's the easiest way to start.
03-21-2005, 05:45 AM
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Re: Pulled motor, yanked pistons, check out what I found (Sunlight)
4t and 5th gear pulls scare me . Thank god sfp tuned me rich. I was doing a 4th gear pull and the cel came on for high voltage on primary o2 sensor. I just ran really rich when it got hot. thanks frank for savin my @$$
. Thank god sfp tuned me rich. I was doing a 4th gear pull and the cel came on for high voltage on primary o2 sensor. I just ran really rich when it got hot. thanks frank for savin my @$$