Going to view a tubby

[danjama]

Hi everyone, i posted this on mr2oc but only got one reply (albeit a very useful one)!

I've run my mr2 na rev3 for almost two years now. Finally going to look at a rev2 tubby tomorrow. Of course im familiar with common mr2 issues now, but what should i look for on a turbo? Common issues, expensive issues, cheap fixes etc anything is appreciated.

So far he has told me that the speedo acts up for the first few minutes of running on occasion, but returns to normal once you get going. Does this sound familiar?

Going to view tomorrow so appreciate any advice

[Peter Gidden]

Request in advance thet the owner does not warm the engine prior to your arrival.

Check for smoke from cold start, and when warm, on boost, on overrun, and at idle. Check gearbox is smooth up and down gearbox.

Whereabouts in the country is the car?

[danjama]

Thanks Peter thats a good point about the engine temp i'll message him now.

It's in Brighton.

Is it correct that turbo gearboxes are more prone to crunching? And if yes, is that eventually a replacement box needed?

[MR2 Rich]

A. Hold out for a Rev3.
B. I'd say NA's are more likely to crunch as they didn't sort the synchros out until Rev5, whereas Turbos were Rev2 onwards.
C. Or rebuild box if it becomes a problem.
D. Check the sills.
E. +1 for Post 2.

Good luck mate.

[Peter Gidden]

I'd say NA's are more likely to crunch as they didn't sort the synchros out until Rev5.

Huh?

[MR2 Rich]

I'd say NA's are more likely to crunch as they didn't sort the synchros out until Rev5.

Huh?

The Rev1-4 had weaker synchros on the NA's, the Turbos was only Rev1's.

[Odin_S]

I'd say if the car is in good condition get it. However if you are going to be looking for more power 6 months down the line, hold out for a good condition rev 3+

[Peter Gidden]

I'd say NA's are more likely to crunch as they didn't sort the synchros out until Rev5.

Huh?

The Rev1-4 had weaker synchros on the NA's, the Turbos was only Rev1's.

You are incorrect.

[danjama]

Well I will keep an eye on the gearbox anyway!

[Marf]

I'd say if the car is in good condition get it. However if you are going to be looking for more power 6 months down the line, hold out for a good condition rev 3+

Yep, 300 isnt difficult on a rev 3 with bolt ons.

On my Rev3 with just airbox, downpipe and exhaust I hit 285hp without even touching boost control. I'm pretty sure that mine was north of 300 after I'd added the ST205 chargecooler and upping the boost, though I never had it dyno'd after adding those mods.

[MR2 Rich]

Huh?

The Rev1-4 had weaker synchros on the NA's, the Turbos was only Rev1's.

You are incorrect.

Well you're the one that told me that....

[jspecwoody]

if its near the seaside, find out how long it has been in the salt air and check more thoroughly for rust.

[slipping clutch]

Head gasket been changed for a MLS one? not 100% on this but the rev 1 and two share the same head and rev 1's have a bit of an issue with the head gasket going - hopefully this one will have a rev 3 one fitted or another decent mls gasket fitted.

[danjama]

Not sure about the head gasket

Anyway had a very positive experience and i'm extremely happy with the car so looks like it's mine. Hoping to pick up next week.

Any ideas what the issue is with the speedo occasionally misreading?

[slipping clutch]

The nylon end gear on the mechanical speedo sensor maybe getting ready to fail - its a fairly easy job to replace and the part is readily available.

[MR2 Rich]

Huh?

The Rev1-4 had weaker synchros on the NA's, the Turbos was only Rev1's.

You are incorrect.

So explanation on why I'm incorrect, ok expert.

[ashley]

I think you've confused weaker synchro's with the availability of an OEM LSD on the turbos maybe? There was no OEM rev1 LSD for the turbos.

HTH

[MR2 Rich]

I think you've confused weaker synchro's with the availability of an OEM LSD on the turbos maybe? There was no OEM rev1 LSD for the turbos.

HTH

So the Rev1 turbos don't have weaker sychros than the later Rev's? And the Rev5 NA's don't have uprated ones to the earlier NA'S Rev's?

[ashley]

Not to my knowledge, no. The rev 5 NA was the first afaik to have an option on the LSD though, no other NA's had a factory LSD.

That's why I think you're getting synchro's and LSD's mixed up- everything you've said works if you substitute LSD for Synchros

[MR2 Rich]

http://www.imoc.co.uk/forums/viewtopic. ... t=synchros

http://www.imoc.co.uk/forums/viewtopic. ... t=synchros

http://www.imoc.co.uk/forums/viewtopic. ... t=synchros

http://www.imoc.co.uk/forums/viewtopic. ... c&start=20