go easy for the first test and good luck.
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go easy for the first test and good luck.
Well done, hope all goes according to plan!
wrinx
If you don't make a first start video, I must kill you! :biggrin::biggrin::biggrin:
Camera is already setup, beer is in the fridge. No Start = No beer.
Well, after a couple of false starts - a fuel leak, problems priming the oil pump, a bit of a coolant leak at the radiator, fast idle because I had forgotten that I hadn't connected the aux idle air supply valve.. but anyway at the first opportunity - then engine fired up and ran. But I have a problem or two.
a. mixtures are too lean, even for idle and revving to 3000 rpm on the hoist about 15 - 16:1. Will add some more fuel to the table tomorrow..
b. there seems to be a problem with the basic engine timing. I have been very careful to get the belt positioned correctly on the crank pulley, and on the cams. There are no belt covers so its VERY easy to see where the timing is at. However.. the car idles at 900 RPM on the 2nd timing mark (instead of the first) - AND the longer mark on the plastic timing cover is approx 5 degrees inside the notch on the very front pulley?? what gives. I can hear some low level pinging from this situation.
Could i have mal adjusted the basic timing in some way?
The cam wheels have been removed from the cams and replaced.. there is a bit of 'slack' in their positions. Could this account for the timing issue?
Any other suggestions? What about the cam timing sensor? I tried to put it back just like it was?
Having ICV {Idle Control Valve} disconnected you should have LOWER idle by 50 rpm! Not that fast as understood from what you said "fast idle because I had forgotten that I hadn't connected the aux idle air supply valve".
Are you sure you have not mixed the camshafts? Maybe I'm writing rubbish I do not know.
As it turns out, the 'noise' was actually coming from the power steering pump not having got all the air out of its system! - Engine is running brilliantly!
I'm loving the sound of it needing so much extra fuel, it's going to be a kick ass motor. Drop the oil and filter have a look to see all's well, refill and load those rings. Well done Jim, it's worth the hard work now eh?
Nik
Excellent...happy for you Jim!
Looking forward to the first report of it running, especially the turbo :D
wrinx
I have adjusted the fuel table so that it now runs at 13:1. I basically added 1.2x to the existing fuel table values to achieve that.. now it runs great! I ran it for approx 15 mins to full temp (it takes a long time to warm up with 11 litres of coolant...) Sounds great - actually very smooth and quiet. That will be it for running for a while till I get the intercooler pipework sorted.
The following is the first start video - after we got our mistakes sorted..
this is the first time it was tested with fuel & spark - so its first opportunity to run. As you can see it starts first time. I had to stop it almost immediately and reconnect the aux air idle valve.
[ame="http://www.youtube.com/watch?v=DWAy6dVEo14"]YouTube Down For Maintenance[/ame]
After this - we ran into the 'noise' issue that turned out to be just the powersteering pump - then with that sorted it went great!
Thank you to all who have provided advice!
just a note on fitting an electric water pump to a Q4...
the typical place to put these things is in the lower radiator hose...(they don't self prime). With a Q4 - the line from the filler tank is on this "hose" (on the T piece behind the car in a standard car). You need to move this connection to a "T" piece in the lower radiator hose but before the intake to the electric water pump. Otherwise the flow from the water pump forces (a lot of) water up into the filler tank. I had to re plumb for this as I'd for gotten that I had run into the exact same issue with my last racecar...
The intercooler pipework is now "complete". Tomorrow I will see it it actually "fits"
:)
That will look good in there. Thanks for the update.
Fitted the intercooler pipework. I think it has come together ok.
jimn~
Nice work Jim, congrats.
Wow, looking very nice! .. :)
Great job.
Congratulations!
I guess we all can say, this is a job well done :smile:
Greetings,
Marc
Well thats that then!
put the bonnet pins in (I had to remove the standard bonnet retention system for the radiator to fit...) Rigged up a temporary air filter / ducting.. put the wheels back on!
Its going to the track next week. Will take a video.
cheers, jim.
you could remove this one too.
I'm taking the Q4 to Calder park raceway tomorrow where they are having an 'open practice' day! It will be the cars first real run I am hoping to do at least 50km. This will be its first and last time on ULP - then its on to E85 ~
cheers jim..
Nice, look forward to seeing how it goes.
Any rules for running the engine in?
That's a view I like! I do not mean the cars of coarse!!!
Do you accept immigrants?
ps.
good luck
Not sure about your new rear downforce device...but looking forward to your report of Calder Park.
wrinx
I hoped you remapped it well before running it..... ??