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New 26 Just Dropped In

Crans

By Crans,
in Engines & Forced Induction

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Crans Mentor

Crans

Posted
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Just dropped in a 68k Rb26 with HKS 2510 turbos into my 32 gtr. She started up really easy idled really really rough and blew alot of white smoke. This finally cleared so i guess it was just oil from the engine sitting around for a long time.

Heres the current problem. It is really really slow to free rev takes ages to get to even 4k. Stabbing the throttle does stuff all compaired to my old rb20.

Taking it for a test drive tomorrow to see how it goes.

Now I know there is one problem the CAS was loose. We have set the timing to where it idles the best and tightened it up. Want to get a timing light on it but cant see how with the coil plugs.

Any ideas on setting timing and the possable problem?

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Crans Mentor

Crans

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you can still use a timing light to find the base timing id say its either CAS or maybe the timing belt now put on properly possible skipped tooth?

Where do you hook the timing light up too? i doubt its skipped a tooth on the timing as belt is well tensioned and was not removed being a 68k engine it should be due for replacement yet.

blind_elk Grand Master

blind_elk

Posted
Posted

Taking ages to spin up is probably due to timing too retarded, so that maximum combustion pressure occurs after TDC. Using a timing light on RB-series engines has been covered numerous times.

Did you get the injectors cleaned before you installed the engine.

blind_elk Grand Master

blind_elk

Posted
Posted
... Running some injector cleaner through it with the fuel. ...
Pretty much a waste of time, if the injectors are already dirty. And if the engine has been sitting around for a while, who knows what condition they are in?
Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
Where do you hook the timing light up too? i doubt its skipped a tooth on the timing as belt is well tensioned and was not removed being a 68k engine it should be due for replacement yet.

Run a HT (conventional coil lead) lead between the coil pack and spark plug and clip the timing light on that.

Crans Mentor

Crans

Posted
  • Author
Posted

Timing gun attached and working. Just need to be 100% sure about setting the timing.

Idle at 950rppm timing should be set to 20deg BTDC

From left to right what does each mark represent? I think i have it done right but just want to make sure.

Have searched through the gtr service manual but at 300 pages i haven't found anything yet.

Cheers for the help

SteveL Mentor

SteveL

Posted
Posted
left to right what does each mark represent? I think i have it done right but just want to make sure.

Have searched through the gtr service manual but at 300 pages i haven't found anything yet.

Details are shown on page EN-11 of the genuine service manual......28 pages in from the start of the manual (well, it is in my electronic version)

Crans Mentor

Crans

Posted
  • Author
Posted

Don't know how I missed that part. OK Timing set now. Issue with coil pack fixed and she now seams to be running alot better.

Al tho its now blowing a heap of white smoke when i give it a bit of throttle. Smells like oil burning. Could it be oil in the cooler pipes from the old engine?

  • 1 year later...
Crans Mentor

Crans

Posted
  • Author
Posted (edited)

May as well update this even tho car is gone.

White smoke was from a massive build up of oil in the cooler pipes from the old engine.

Engine problem was due to dodgy silicon joiner that would only open up under boost. Car ran perfect after this.

Edited by Crans
  • 2 months later...

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