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jonno_racing
az supporter
Joined: Wed Apr 15, 2009 11:30 pm Posts: 8164 Location: Tassie
Vehicle: suzuki
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 Posted: Sun Dec 13, 2009 10:09 pm |
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the zook was showing signs of a blown head gasket between watter gallerys and combustion chamber so i changed that, not the issue, turns out it was the cold air valve on the side of the intake manifold? leaking watter in2 the intake when the cooling system presurised! so that is fixed (buypassed for now, its locked shut anyways? or should it be open? am i missing out on power here?)
the issue i am haveing atm is that it is running out of fuel.. or feels like it...
basicly it is fine running though town with a quick dab on the throttle every now and again, BUT if you drive on the highway or say Punch it hard of the lights it dies.. not compleetly but does loose around 75% of its power.. back off or stop for a few secons and it is right to go again...
so i am thinking fuel pump or fuel presuer regulator..
it is running a STOCK mk1 gti fuel pump mounted in the sierra tank and a flexable hose from the tank to the motor.. and it has no fuel fillter in it atm as i am just getting her going.. (yep i know stupid me)
it is also missing under load but i am thinking that is just simply a fked plug or something from all the water it has been drinking!
all help is apreciated..
thanks
_________________ Do cool stuff, Put it on the internet Sierra build, Jimny build https://www.youtube.com/user/redzook1
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oozuk
Joined: Sun Aug 16, 2009 11:30 pm Posts: 1452 Location: bethania QLD
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Posted: Sun Dec 13, 2009 11:50 pm |
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shitty fuel pump or reg. having the bypass blocked off will only stop it from idiling higher when it's cold
also check your plugs, leads or AFM.
Any one of these can do it, but most probably it's a shitty fuel pump or bad pump wiring
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building a bling zook .......will it ever be finis
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jonno_racing
az supporter
Joined: Wed Apr 15, 2009 11:30 pm Posts: 8164 Location: Tassie
Vehicle: suzuki
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Posted: Mon Dec 14, 2009 4:10 am |
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yeah steve i will check everything....
i will make up a plate and get rid of that....
the leads are brand new.. but i will pull plugs to check them as i have had head off etc and proberbly bumped the gap.. what check on afm?
i am also thinking i may have picked up bad fuel.. as i just filled up b4 it started playing up...
_________________ Do cool stuff, Put it on the internet Sierra build, Jimny build https://www.youtube.com/user/redzook1
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IN2DEP
az supporter
Joined: Fri Nov 13, 2009 10:30 pm Posts: 739 Location: Hoppers Crossing
Vehicle: 95 Sierra Soft top
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Posted: Mon Dec 14, 2009 1:40 pm |
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Fuel filter would be good to start off with lol
Get a VL Turbo fuel pump thats more then enough for 150kw with the G13Bs
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jonno_racing
az supporter
Joined: Wed Apr 15, 2009 11:30 pm Posts: 8164 Location: Tassie
Vehicle: suzuki
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Posted: Mon Dec 14, 2009 3:46 pm |
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yeah i know i will grab a filter b4 i drive it again lol..
no real point.. i am useing the pump that is designed for the motor i am useing.. it has more than enough flow for the hp i have..
although if it is cheeper i will get a VL pump lol
_________________ Do cool stuff, Put it on the internet Sierra build, Jimny build https://www.youtube.com/user/redzook1
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IN2DEP
az supporter
Joined: Fri Nov 13, 2009 10:30 pm Posts: 739 Location: Hoppers Crossing
Vehicle: 95 Sierra Soft top
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Posted: Tue Dec 15, 2009 3:43 am |
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jonno_racing wrote: yeah i know i will grab a filter b4 i drive it again lol..
no real point.. i am useing the pump that is designed for the motor i am useing.. it has more than enough flow for the hp i have..
although if it is cheeper i will get a VL pump lol
Ive got a 1.4L G13B Block sitting in my gti at home you keen ??, Need new pistons and rods tho lol and cylinder sleves 
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jonno_racing
az supporter
Joined: Wed Apr 15, 2009 11:30 pm Posts: 8164 Location: Tassie
Vehicle: suzuki
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Posted: Tue Dec 15, 2009 3:04 pm |
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lol wtf??
ok i just blocked off the Fuel presure reg... still does it.. but buy christ it go's hard lol... prob a extra 5-10kw's it also reved out heeps harder..
this is telling me the stock fuel pump is dieing.. and it hasnt been able to keep up for quite some time! hence it not likeing to rev hard...
pulled pump out and all looks nice and clean etc... so its time for a new pump 
have found a rb20det fuel pump.. apparently it looks nealy identical.. but for $25 i am going to wack it in and see what happens..
i would go to the VL pump route But i have modded the pick up for in tank so i might as well stick with it! _________________ Do cool stuff, Put it on the internet Sierra build, Jimny build https://www.youtube.com/user/redzook1
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UBZ
Joined: Sun Nov 16, 2008 10:30 pm Posts: 297 Location: NZ
Vehicle: LJ50 , LJ80Q-II
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Posted: Fri Feb 19, 2010 3:13 am |
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jonno_racing wrote: i have modded the pick up for in tank
can you give me any more info on this mod. trying to sort out fuel for my 13b conversion and coily tanks are rare here in NZ, but would still like to use a swimmer pump instead of an external
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Fatzook
az supporter
Joined: Sat Oct 27, 2007 11:30 pm Posts: 14977 Location: The Hills
Vehicle: Vitara, NGV
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Posted: Fri Feb 19, 2010 3:30 am |
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Are you running an external EFI fuel pump? or intank? Have you got a surge tank?
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2013 GV
1998 SV420 ute
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