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rd28 to td42
Posted: Thu Feb 11, 2010 5:15 pm
by 70DDZ
i have just put a 4.2 in my 1997 gq that had a 2.8 in it i have eveything hooked up and running except for spedo and taco and 4x4 light the wiring harness is all hooked up if any 1 can help with these would be very help full the 4.2 is a 88 model
Posted: Thu Feb 11, 2010 6:01 pm
by PGS 4WD
I did the same mod to mine, (since sold). The speedo should be working, the tacho wires will work, you have to intercept them under the dash and bring in the TD42 tacho wires from the timing cover sensor. I can't recall which wire but if you put the two wiring diagrams side by side it is easy enough to work out.
Joel
Posted: Thu Feb 11, 2010 6:04 pm
by 70DDZ
some one told me that older model gearboxs have a aspedo cabel and the rd28 was electric
Posted: Thu Feb 11, 2010 6:34 pm
by PBBIZ2
PM Clanky, he is a forum member and has just completed this same job.
rd28 to td42
Posted: Fri Feb 12, 2010 8:58 am
by trump
I did this conversion about two years ago and it was a direct swap unplug the loom from 2.8 gearbox change the plug on the end of the loom to suit the 4.2 gear box plug in and all had been right since.
Trump
Posted: Sun Feb 14, 2010 6:05 pm
by 70DDZ
got it all workin thanks everyone for your help
Todd