MR2 MK3 Gearbox Repair or Replace?

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DashingDave
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Prime Mover: ZZW30 (MRS / Spyder)
First name: David

MR2 MK3 Gearbox Repair or Replace?

Post by DashingDave »

2001 Toyota MR2 MK3 Roadster - U.K. 5 Speed Manual

Gearbox suddenly stopped working, making horrendous noise. Jams up, stuck in gear. Also necessary to physically force stick to keep car in gear and prevent it from jumping back to neutral.

Been diagnosed with "catastrophic gearbox failure" by several mechanics, having had details described to them, including one who tried to drive the car.

Seemingly two main options:
- Remove old gearbox and replace (~£200/$270) with choice of second-hand gearbox (~60,000 miles, ~£300/$400) Total = ~£500/$660 (1month/3month warranty)
- Remove and completely recondition existing gearbox, or replace with reconditioned gearbox and re-install = ~ £1000 ($1320) (inc. 1 Year warranty)

So basically, the second option being double the cost of the first.

Do I take a chance with a used gearbox and get it fitted for £500/$660 all-in, or my existing one completely overhauled or replaced with another reconditioned gearbox, guaranteed for a year, spending £1000/$1320 to fix a 15 year-old car?

Any suggestions most welcome.

Cheers,
David.

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JasonFriday13
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Re: MR2 MK3 Gearbox Repair or Replace?

Post by JasonFriday13 »

DashingDave wrote:Jams up, stuck in gear.
Possibly a broken fork on one of the gears. One of my old gearboxes broke a fork on 4th and it would stay in gear. After getting it out of 4th I never selected it again, I went straight from 3rd to 5th and vice versa.
DashingDave wrote:Also necessary to physically force stick to keep car in gear and prevent it from jumping back to neutral.
Sounds like the ball and spring for the selector fork has broken, which is why it won't stay in gear.

These are just guesses based on the info provided.
Jason Ross, current cars:
Project: 1990 SW20 GT, 1992+ brake swap, 1992+ subframe swap, 1996 Celica turbo engine swap, 1996 MR2 LSD gearbox swap, Caldina Turbo coil-on-plug ignition, Link G4 Storm, 161kw @ 10psi.
Daily: 2004 Toyota Vitz RS, 1.5L, 5sp
Tow rig: 2009 Camry, 2.4L, auto
Scrapped: 1989 SW20 GT, 1992 SW20 G-Limited, ex EssDub car, donor, 1997 Toyota Tercel 3dr hatch, front crash, 1990 SW20, G-Limited, ex EssDub car, roll crashed, donor
Sold: 1987 AW11 Supercharged, 1991 SW20 G-Limited, ex EssDub car

DashingDave
Guest of the Club.
Posts: 2
Joined: Mon Aug 01, 2016 3:07 pm
Stomping Ground: Outside of New Zealand
Prime Mover: ZZW30 (MRS / Spyder)
First name: David

Re: MR2 MK3 Gearbox Repair or Replace?

Post by DashingDave »

Thanks for the info, pal.

In light of this would you therefore recommend a repair of my existing gearbox or simply getting a 2nd hand one installed?

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JasonFriday13
Club Member - MR2OCNZ
Posts: 2503
Joined: Mon May 21, 2007 5:19 pm
Stomping Ground: Taranaki
Prime Mover: SW20
First name: Jason

Re: MR2 MK3 Gearbox Repair or Replace?

Post by JasonFriday13 »

I don't know, I'm a DIY mechanic so I would source a used gearbox and swap it out myself (cheaper this way).

I would probably go for the first option you listed, 60,000 miles isn't really that high. Most of the gearboxes over here in NZ are higher than that, and are harder to source.
Jason Ross, current cars:
Project: 1990 SW20 GT, 1992+ brake swap, 1992+ subframe swap, 1996 Celica turbo engine swap, 1996 MR2 LSD gearbox swap, Caldina Turbo coil-on-plug ignition, Link G4 Storm, 161kw @ 10psi.
Daily: 2004 Toyota Vitz RS, 1.5L, 5sp
Tow rig: 2009 Camry, 2.4L, auto
Scrapped: 1989 SW20 GT, 1992 SW20 G-Limited, ex EssDub car, donor, 1997 Toyota Tercel 3dr hatch, front crash, 1990 SW20, G-Limited, ex EssDub car, roll crashed, donor
Sold: 1987 AW11 Supercharged, 1991 SW20 G-Limited, ex EssDub car

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