Author Topic: 1.6L TD in a mkIII body (Read 8315 times)

BlackTieTD · « **on:** March 08, 2006, 10:12:09 am »

mkIIIs weigh a fair bit, but i know from hauling a ton of junk in my rabbit that the 1.6L TD is sufficient to move that amount of weight.

i'd like to put that 1.6L TD into a mkIII (giles pump later to wake it up a little), and i'd like to make sure i've thought of everything before heading down that road.

out of mkI though mkIV i am the least familiar with mkIIIs. i imagine i will need the motor mounts from a mkIII to put it in, and that the bolt holes for them will already be present on my MF-code block. will mkII mounts work as well?

for exhaust, i know a few people who use a mkIII downpipe in a mkII chassis. similarily, will a mkII downpipe work in a mkIII body with a 1.6L TD motor? will an aftermarket mkII 1.6L TD downpipe like the one offered by passenger performance work in a mkIII body?

will the shift linkage and clutch from the mkIII work fine with an FN-code rabbit transmission or will i need to find a solution to that?

other than sensors, i imagine that the wiring from the mkIII (formerly 1.9L TD) will work with the 1.6L TD, its really just the stop solenoid that is critical. you guys who know my rabbit know i'm happy as long as it runs and gets me there. i'll work on sensors and hooking everything else up later.

i haven't researched the specifics much as you can see but i will be doing that this afternoon. any help you guys can offer is much appreciated!

malone · « **Reply #1 on:** March 08, 2006, 11:31:31 am »

Quote from: "BlackTieTD"

mkIIIs weigh a fair bit, but i know from hauling a ton of junk in my rabbit that the 1.6L TD is sufficient to move that amount of weight.

i'd like to put that 1.6L TD into a mkIII (giles pump later to wake it up a little)

I had a bone stock 1.6L TD with Giles pump and a stuck turbo wastegate that didn't allow any boost until after 3,200 RPM.. boost maxxed out at 7 PSI or so with the LDA deactivated. It performed fine with virtually zero smoke for streets & highways, so MKIII weight is not a concern.

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i imagine i will need the motor mounts from a mkIII to put it in, and that the bolt holes for them will already be present on my MF-code block.

I use MKIII mounts and they bolt on the MF block.

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for exhaust, i know a few people who use a mkIII downpipe in a mkII chassis. similarily, will a mkII downpipe work in a mkIII body with a 1.6L TD motor? will an aftermarket mkII 1.6L TD downpipe like the one offered by passenger performance work in a mkIII body?

I had a MKII turbo downpipe mated to the existing MKIII exhaust system. A custom exhaust system (2.5" downpipe to 3.0") was later transferred from my MKII Jetta to my MKIII Golf and it was a direct fit. The underbody of both cars are identical.

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will the shift linkage and clutch from the mkIII work fine with an FN-code rabbit transmission or will i need to find a solution to that?

That I do not know, but I used my MKIII 1.8L 8v transmission (gas) and I love the short gear ratios. The 5th gear was swapped out for a taller one, making highway cruising nice. I suppose the MKIII 1.9TD you're looking at doesn't have a transmission?

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Other than sensors, i imagine that the wiring from the mkIII (formerly 1.9L TD) will work with the 1.6L TD, its really just the stop solenoid that is critical. you guys who know my rabbit know i'm happy as long as it runs and gets me there. i'll work on sensors and hooking everything else up later.

It's really a simple job, especially if the MKIII had a 1.9L TD. My MKIII had a 1.8L 8v gasser and wiring the 1.6TD was still simple. The "hardest" part was wiring the stop solenoid to the ignition.

BlackTieTD · « **Reply #2 on:** March 08, 2006, 11:43:03 am »

thanks malone. i knew when i saw your name it was going to be an informative post on this topic.

the one i am looking at is just what i was hoping for. however it has no motor/trans/exhaust :oops:

i think i still have the original mkII exhaust system on the jetta i pulled this 1.6L TD from. if it isn't squished into the ground under the weight off the jetta i'll try to salvage it.

re: transmission. i have a rabbit GTI gearbox and whatever 02A would have come in a 2L 16v passat. thinking about using one of those with a longer 5th. but for now i just want to dump the rabbit's motor/trans in there as a unit.

thanks for all the info!!

935racer · « **Reply #3 on:** March 08, 2006, 03:57:38 pm »

Use a3 or a2 mounts for engine and tranny.
a1 tranny and shift linkage is not compatible with a2/a3 chasis.
My mk2 DP will fit your mk3 just fine.

dieselpete · « **Reply #4 on:** March 08, 2006, 04:03:53 pm »

I don't believe that you can use the rabbit tranny in the a3 or a2 for that matter because the shift linkage bracket that mounts to the diff housing does not have the necessary holes in the housing for the bolts to go through- this also supports the tranny mount if i remember correctly.
As far as the swap goes I have an 87 mf motor in my 94 jetta 2.0l gasser. Easy swap I reused my gasser clutch and tranny. the only problem I had was that the oil pressure light wont go out regardless of which pressure switches I tried. Hope this helps.

cheers pete

dieselpete · « **Reply #5 on:** March 08, 2006, 04:04:53 pm »

935 you beat me to the punch

pete

BlackTieTD · « **Reply #6 on:** March 09, 2006, 09:39:48 am »

will the A2 transmission work in the A3 body? i have the original box from the 1990 jetta that i got the TD engine from, just rememebered

935racer · « **Reply #7 on:** March 09, 2006, 04:16:52 pm »

Yes the a2 tranny will work, a2/a3 chasis are fairly identical.

andy2 · « **Reply #8 on:** March 09, 2006, 04:42:42 pm »

What about the speed sensor,With the a3 being elec pickup and the a2 being cable driven?

Does anyone know if the a3 speed sensor will work in the a2 trans,If not then You'll have to put up with no speedo

BlackTieTD · « **Reply #9 on:** March 10, 2006, 06:25:55 am »

i have a few mkII TD gauge clusters, i could always jam one of those in there until i sort out an electric sensor. thanks for all the info.

QuickTD · « **Reply #10 on:** March 10, 2006, 02:37:05 pm »

The Mk3 sensor will fit a mk2 trans. If you need a set of Mk3 diesel engine mounts I might be able to help you out.

BlackTieTD · « **Reply #11 on:** March 15, 2006, 11:19:20 am »

thanks for all the advice everyone.

i'm going to try to pull all the pieces together to do this nice and clean. so far i think i will be able to get everything i need, but there is still some question as to which axles are required. i need to get my hands on the mkII transmission i plan to use and see what size the axle flanges need to be. box from a 1990 jetta TD.

test drove the '94 jetta that the 1.6TD will likely be going into (with its current 1.9L TD engine that will be removed), i'm happy with it... only disappointment is that the 9.4" brakes in the mkIII bring it to a sluggish stop especially compared to the rabbit i'm used to. i will likely go to 11" VR6 5-bolt stuff later on since i have those parts sitting around collecting dust. not too excited about the increased rolling weight or more expensive tires with 15" wheels but stopping is more important.

BlackTieTD · « **Reply #12 on:** March 16, 2006, 07:06:13 am »

not too sure if the power steering pump in the mkIII is the same as would be in a mkII. will either mkII or mkIII power steering pump brackets work to mount a mkIII power steering pump to the 1.6L TD MF engine? should the accesory belt be the standard mkII TD belt for a car with P/S but no A/C?

wyldman · « **Reply #13 on:** March 16, 2006, 08:31:25 am »

I have the MKIII here,and a MK 1.6L engine with the PS setup on it.I will verify today if it will all bolt up.If it will,you can use what I have to get you mobile for now.

BlackTieTD · « **Reply #14 on:** March 16, 2006, 08:32:54 am »

thanks chris

Author Topic: 1.6L TD in a mkIII body (Read 8315 times)

935racer

935racer

andy2