Rb26 Startup After Re-fitting The Head.

[Mark-32]

Hi all,

Just want to know what people suggest doing when starting my engine for the first time after re-installing the engine.

The engine was fully built, run in and tuned on the dyno, and did roughly 1000ks of road driving before breaking a valve guide for no apparent reason and bending the inlet valve on no 4 cylinder.

Anyway..... I then removed the engine from the car unbolted the head and sent the head back to the builder who replaced the guide and the bent valve for me under warranty.

The builder sent the head back to me all set up with cams fitted and the head has now been torqued back down, and the motor is finally now back in the car ready to go.

Im nearly at the stage of starting it again, should i just unplug the coil pack harness and unplug injector harness and crank the motor to regain oil pressure? And obviously bleed the coolant system? Anything else?

Do people think it will be right to just start driving it again normaly.... taking it easy obviously, seeings that the tune hasnt changed?

Or should I at least plug the vipec into a laptop and look at knock? Or do i really need to get it back on a dyno and check air fuel ratios?

Sorry for all the questions just dont want to go through the pain of stuffing it again.

Any help is much appreciated.

[R31Nismoid]

Just unlpug the CAS and give it a 10-15 sec crank.

That should do it - make sure you have a good battery

If you've really not changed much else (sounds like cams are the only thing, and thats nothing too major)...

Should be fine just to drive very easy until you get to a dyno just to check everything is in order.

I would certianly check it either way - silly not to for a few power runs after reinstalling the motor. EG could have a split boost hose or something silly you've not picked up. Good to have it in controlled conditions, watching it all closely for a couple runs and so on.

[Mark-32]

Just unlpug the CAS and give it a 10-15 sec crank.

That should do it - make sure you have a good battery

If you've really not changed much else (sounds like cams are the only thing, and thats nothing too major)...

Should be fine just to drive very easy until you get to a dyno just to check everything is in order.

I would certianly check it either way - silly not to for a few power runs after reinstalling the motor. EG could have a split boost hose or something silly you've not picked up. Good to have it in controlled conditions, watching it all closely for a couple runs and so on.

Thanks for that mate.

As long as startup goes ok and everything seems right i will just take it for a short drive round the block then keeping it under 3 grand or so and check for oil leaks and so on. Then back on the dyno just for peice of mind.

Can anyone tell me if there is any sort of error or knock log on the vipec that I can have a look at when i get it going?

Just to see if it says anything from around the time it bent the valve?

I was there for the tuning of the car and watched them do it but Im not real familiar with the software.

And how do i go about lowering the rev limit once i plug it into my laptop? Wouldnt mind dropping it back from 8600 to around 7500ish just for peice of mind as i REALLY dont want to go through this again.

[Mark-32]

Is there any need for me to put a timing light on it to set the base timing on the cas?

[XRATED]

I'd turn the engine over by hand just to check you dont have any valve to piston touchy touchy...

Once you have checked and re-checked the cam timing, pull the plugs and turn it over by hand untill you get oil pressure, re-install the plugs and start her up.

Then chuck a timing light on it to set base timing.

Go for a drive and monitor the afr's and knock levels... Personally I'd throw it on the dyno just to check it out.

J.