SD25 to TD27

Adrian585 · Aug 7, 2010

Hi

Im new to the forums.

I want to change my SD25 engine to a TD27 in my navara. I have a TD27 engine but not the correct bellhousing, starter motor etc. I have a fs5w71c manual gearbox.

I also have a bit of a limited budget of up to $1500

I have tried calling a lot of wreckers with no luck for a donor car for the parts i need.

I live near Albury / Wodonga.

Any help would be appreciated.

Dion · Aug 7, 2010

If you are prepared to wheel and deal, I have a TD27 with 245,000kms, manual gearbox (rebuilt 20,000kms ago at Wodonga Auto Trans at a cost of $3600), starter motor, transfer case package up for sale. They're in my vehicle now but I can swap them out in a heartbeat.

PM me about what you're after and we can discuss pricing.

nissanmad · Aug 11, 2010

parts are dirt cheap over here in nz you can pick up a fully rebuilt d21 gearbox for around $900 nz on Trade Me

Adrian585 · Sep 24, 2010

After several weeks of negotiations with Dion that involved hundreds of emails, many phone calls & lots of coffee. I picked up the motor, gearbox & other parts today.

Dave · Sep 25, 2010

No time for forums, lol. Get in and swap that motor.

Dave.

Adrian585 · Oct 14, 2010

I have removed the SD25 & fitted the TD27 into the navara. Found the engine mount on the drivers side is different for SD to the TD. The other one is fine to use. The next major thing is the electrics. The wiring harness has to be modified.

Drew · Oct 15, 2010

Hey mate, what did you find different with the engine mounts?

shero82 · Oct 15, 2010

i take my hat to blokes like you.
i wouldn't even know where to start.

Adrian585 · Oct 15, 2010

One of the bolts for the SD mount goes in the red circle in the second photo.

Adrian585 · Nov 6, 2010

After more than a month the TD engine is finally running. Had to make a custom wiring harness. Just have a few more things to do and its back on the road.

Dave · Nov 6, 2010

Good stuff, wanna do a complete write up on how to.

Dave.

Drew · Nov 8, 2010

Gday mate, I am not far off throwing a TD27T into my D21 and I was under the impression it was pretty much plug and play between the two engines. Can you PLEASE to a write up with what you had to do? I like to have everything ready so it's off the road for the least amount of time. It would be a massive help.
Cheers.

Adrian585 · Nov 8, 2010

I am working on a write up.

Drew · Nov 9, 2010

Cheers mate.

Adrian585 · Nov 29, 2010

The engine swap is mostly plug and play. There are a few differences between the two engines. The first one is the engine mount on the drivers side. Due to the location pin on the SD mount. In my basic pic the SD bolts to B & D. The TD mount bolts to A & C. The next difference was the power steering hoses. They wouldn't bolt into the steering box. The pumps were different so i couldn't just swap them. The distance between the mount & the pulleys was over 10mm. I swapped the hoses.

Adrian585 · Nov 29, 2010

Next the hand throttle cable connects to the TD differently to the SD. Its the same as the SD throttle cable mount. I made a rubber mount for it using some air con hose with an outside diameter of 19mm & inside diameter of 8mm. The inside diameter needs to be approx 10mm. I used a dremel to make the inside diameter bigger. Then i made two rubber washers from some rubber sheeting. I used some wad punches (They are used for black powder rifles). I used two mudguard washers to hold it in place.

Drew · Dec 2, 2010

Cheers for that mate, seems pretty straight forward.

would you be able to write up what was involved in making up the wiring harness?

Thanks for the help mate.

SD25 to TD27

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