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Home > General Chat > bk450 gasket on k1200RS | |||||||
![]() 218 Posts Member #: 9213 Senior Member Scotland |
25th Jun, 2014 at 09:49:36pm
Took the head off tonight to assess the damage. Its cylinder 2 again, right at the water gallery.
Edited by nky_84 on 25th Jun, 2014. |
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4309 Posts Member #: 1321 Post Whore Wiltshire |
25th Jun, 2014 at 10:18:13pm
Maybe worth checking everything is flat, especially around the area where its failed. Any signs of det at all? On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding |
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
26th Jun, 2014 at 12:06:06am
id be looking at refacing the block and head
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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
26th Jun, 2014 at 12:19:01am
Stop fucking about and dry deck it propper. BK450 gaskets cost £15 and you'll get rid of that un used coolant passage in the head that sits dangerously close to the fire ring.
On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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![]() 218 Posts Member #: 9213 Senior Member Scotland |
26th Jun, 2014 at 12:50:59pm
Block and head will be checked when it goes into get the waterways filled etc. What signs of det should i be looking for?
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![]() 2909 Posts Member #: 83 Post Whore Glasgow, Scotland |
26th Jun, 2014 at 03:04:26pm
refacing the block and head will probably resolve the issue, the dry decking being the icing on the cake :) turbo 16v k-series 11.9@118.9 :)
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Forum Mod 10980 Posts Member #: 17 ***16*** SouthPark, Colorado |
26th Jun, 2014 at 03:36:08pm
I'd also be sending the injectors away for checking - after identifying that one injector mated to the cylinder that appears to always be an issue as needing particular inspection at the injector shop. On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY |
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4309 Posts Member #: 1321 Post Whore Wiltshire |
26th Jun, 2014 at 06:32:23pm
On 26th Jun, 2014 nky_84 said:
Block and head will be checked when it goes into get the waterways filled etc. What signs of det should i be looking for? Block and head will be refaced as part of the dry deck process. Has this bit started to melt? looks slightly pitted. ![]() On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding |
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![]() 218 Posts Member #: 9213 Senior Member Scotland |
26th Jun, 2014 at 09:04:46pm
How likely is it that the block is out of shape? Is there anyway i can test this without specialist tools? If i can get away with leaving the block in situ, i could be back up and running pretty quickly. Removing the block is a much bigger task. I should be able to plug the block and fit the adapter as it stands?
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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
26th Jun, 2014 at 09:28:54pm
Get it pulled out, plug the holes in the block, weld the head and have both skimmed.
On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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![]() 218 Posts Member #: 9213 Senior Member Scotland |
26th Jun, 2014 at 09:35:55pm
Do it right, do it once and all that...
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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
26th Jun, 2014 at 09:38:16pm
On 26th Jun, 2014 nky_84 said:
I've not read any other examples of cars blowing gaskets at this particular point. Is that not the case? I rebuilt an engine for a club member when the two part gasket failed. You could hear coolant leaking into the cylinder with the engine shut off and throttles opened. Coolant passages in the head were just too close to the fire ring. Engine was wrecked and that was a 'proffesional' build. Needed a full rebore/ pistons, regrind/ bearings. On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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![]() 11046 Posts Member #: 965 Post Whore Preston On The Brook |
26th Jun, 2014 at 09:41:47pm
On 26th Jun, 2014 nky_84 said:
Do it right, do it once and all that... 2 years of constant abuse to 8500rpm and 100% reliability running na is looking pretty favourable right now...... ![]() hot combustion gasses blowing by the gasket like that will erode the surfaces. why would you not do the right thing and re face both the block and head? doesn't make sense to me just throwing gaskets at it in the hope it'll go away. Chance favours the prepaired mind, so be prepared Edited by Sprocket on 26th Jun, 2014. On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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![]() 6749 Posts Member #: 828 Post Whore uranus |
27th Jun, 2014 at 07:12:30am
that corner of the cuttout does look remarkably like det eaten ally.
On 26th Jun, 2014 minimole23 said:
On 26th Jun, 2014 nky_84 said:
Block and head will be checked when it goes into get the waterways filled etc. What signs of det should i be looking for? Block and head will be refaced as part of the dry deck process. Has this bit started to melt? looks slightly pitted. ![]() Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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![]() 7265 Posts Member #: 1268 The Boom Boom speaker Police! Essex |
27th Jun, 2014 at 10:21:25am
Just below the red circle seems damaged too. You can see the reflection of the damage on the cylinder wall. Unless it's all an optical illusion? In the 13's at last!.. Just |
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![]() 76 Posts Member #: 9169 Advanced Member Cape Town, South Africa |
27th Jun, 2014 at 10:38:20am
Looks like cylinder 3 not 2 if you count 1 at the front of the engine that being the water pump end??? Looks like detonation to me too, mine looked similar but when the piston was removed the full extent of detonation could be seen down the side of the piston towards the ring lands.
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1394 Posts Member #: 1346 Post Whore bromsgrove |
28th Jun, 2014 at 04:59:13pm
sounds like you are going to have to take it out for a good once over anyway and rebuild. Like colin says get it out!! |
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![]() 218 Posts Member #: 9213 Senior Member Scotland |
30th Jun, 2014 at 11:50:57am
On closer inspection and in better light, minimoles eagle eyes are correct:
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![]() 3673 Posts Member #: 9300 Post Whore Quarry Bonk |
30th Jun, 2014 at 12:19:01pm
I'm not an expert but I would have the piston tidied up as long as everything else is okay, making sure there are no more sharp edges or pitting left 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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![]() 2909 Posts Member #: 83 Post Whore Glasgow, Scotland |
30th Jun, 2014 at 12:23:43pm
that wont be the worst of it, i would be very supprised if it was. however long as there is no damage below the top compression ring i would be tempted to run it myself. BUT i would never let a build for a customer go out the door with a piston like that turbo 16v k-series 11.9@118.9 :)
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![]() 5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
30th Jun, 2014 at 12:25:13pm
Plus 3 (or is it plus 4) for detonation, especially with the new picture.
Schrödinger's cat - so which one am I ??? |
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![]() 218 Posts Member #: 9213 Senior Member Scotland |
30th Jun, 2014 at 01:38:06pm
ok, will post up some pics of all the pistons once out the block. Could really do with that being the worst of the damage but luck hasnt been exactly on my side since going turbo....
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![]() 7265 Posts Member #: 1268 The Boom Boom speaker Police! Essex |
30th Jun, 2014 at 01:47:24pm
It won't take long to get the pistons looking like that if it's gone lean or too much ignition advance on boost. In the 13's at last!.. Just |
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![]() 5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
30th Jun, 2014 at 02:01:12pm
On 30th Jun, 2014 nky_84 said:
Its an SC typhoon ecu, which i believe is just "batch". I'm not changing the ECU at this stage, so if that is the primary issue then its game over for the turbo setup and im going back to NA ![]() The typhoon is fully sequential (assuming it's been setup right for an 8 port) and, from what I've seen of them, well made, so more likely an injector fault. But a wideband, whatever you achieve, and the RR fancy ones, can only measure an average if you have only one, a single one reading all four cylinders can never really see a single cylinder problem. Schrödinger's cat - so which one am I ??? |
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![]() 8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
30th Jun, 2014 at 02:12:43pm
could it be a case that water has been getting into that cylinder causing it to run lean compared to the others?
https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel
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