21-10-09
Ok boys,
I got home from South Australia today and quickly said hi to the family and went straight to the VR4!
I've been hanging to fire it up with the adjusted config file for the Autronic SM4.
I ran over a few things, chucked the timing light on, checked a few settings on the SM4 and got the MRS to crank it over. The timing was slightly off which would have caused the problem so I adjusted it until the light saw what the SM4 was seeing. I plugged in the fuel pump fuses and told the MRS to crank again.... still not starting!!!
Hmmmmm.... I checked the CAS with the internal scope on the SM4 and it looked good... it was getting all the inputs that it should be getting... then I quickly remembered, the CAS might be off by 180 degrees!!!!
I quickly pulled the CAS off, spun the shaft 180 degrees out and reinstalled it.
I then pulled the fuses of the fuel pump and checked timing once again. Got it to 10deg btdc and locked it up. I then plugged the fuses back in and told the MRS to turn it over again... and guess what boys?!?!? ITS ALIVE!!!
My Long rod 2.4L (Self built with Springy Motors) is alive!
It sounds good, the exhaust is louder than I wanted but that is the last of my concerns right now. That is with the valve fully open anyway.
The engine is less noisy than my last build (thighter piston to bore). Seems to be revving quite effortlessly without load.
No oil leaks, no fuel leaks. Ballbearing turbo sounds nice after shutoff. Not as nice as my previous turbo imo.
There is one water leak at the thermostat housing (water temp sensor) I'll have to pull the sensor out, reseal and see how that should be ok.
There is no air idle control, I've yet to adjust the throttle stopper to keep the throttle slightly open for base idle. The Autronic SM4 works by using ignition to control idle which has to be tuned.
Check out the video fellas.
I'm done for today. Time to enjoy the arvo/night!
Might go see MJ's movie.. lol
I'll start on the Motec SDL tommorrow.
Finish off the drivetrain on Monday (fluids, trailing arm and rear brake shims)
Then hopefully get it on the ground on Tue and take her for a spin. Or I might give Dan from Springy Motors a call, get him to bring the o2 sensor over and he can tune it while driving and take it to the shop at the same time.