Author Topic: Toyota MR2 (Read 90286 times)

lozzzzzz · « **Reply #240 on:** September 14, 2015, 06:55:21 AM »

After a frustrating morning (set about fixing the missus brakes only to find the locking wheel nut key was missing), I went and fetched Mr Two and had a go at improving the gear shift. On the way back in the MR2 something went wrong for the first time

One of the gear change cables broke (at my weld). So I repaired and reinforced that then set about improving the gear shift feel.

I've just moved the point at which the gear change cable attached to the gear stick, and it has improved the feel infinitely, I had sort of resigned myself to the fact it would not be a particularly nice shift feel as it was a 'mish-mash' of two different OEMs parts and as the gearbox lever had a big counter-weight mounted on it (that's now gone). But it's lovely, sideways movement is ok, still a little tricky to find 1st and 2nd for a new driver, but forwards and backwards movement is fantastic! A really nice click into gear!

It seems to take a long time cranking over before starting when the engine is up to temperature, from reading about a bit it seems others have had similar problems on the 110hp engines. I had thought that this might be something to do with the EGR and intake throttle solenoids being disconnected (it shows a fault in VAGCom). I connected them up again and they are now sat on the passenger seat clicking away

I cleared the fault codes and warmed the car up with a spirited drive. I've only started it hot a few times, but 'fingers crossed' I think it is starting normally now. I might get a couple of resistors to replace the redundant solenoids and keep the ECU happy.

More to come

Dickjotec · « **Reply #241 on:** September 14, 2015, 09:09:02 AM »

It will never be finished, resign your self to it!!

lozzzzzz · « **Reply #242 on:** September 20, 2015, 08:13:13 AM »

I feel that it might be approaching finished

Well you're right really, I guess what I end up doing (did with the scimitar) is to put somethings on a wish list, and some things on a to do list, and I can let myself call it finished when the to do list is complete.

For example I would like the wiring tucked away, the cruise switch to be neat and easy to use, all four speakers working well etc, it will be "finished" when these are done (and its getting close now). But serious tuning, rev 2 rear suspension, and a few other things will remain on the wish list for now, as I'm not flush with cash.

After spending several hours fixing the bio machine I finally got round to making some more adjustments to Mr Two. This one is to make the car a little more "get in and drive" when someone else uses it, rather than spending 10 minutes explaining the little nuances of the car.

I wanted the gearshift to work a little like the BMW I used to own. Push left for 1st and 2nd, push hard left for reverse. As it is, it can be difficult to decern between 1st and reverse. So I made this.

And welded it on to the base plate by the gear lever (note that when the gear lever is moved left or right, the lever in the left of the photo moves forwards and backwards).

Then finally got round to reducing the diameter of the Toledo gear stick top, and gluing it into the MR2 gear nob.

The finaly test was to lend the car to the missus and see if she could find all the gears with no issues, and...... she can

Although "it is a bit hard to get reverse"..... I can't b****y win!!!

More to come

lozzzzzz · « **Reply #243 on:** January 17, 2016, 04:49:43 PM »

Hi folks its been a while, I've done about 12000 miles in Mr Two now and its going very well. I have recently done a few little jobs to try and get it up to scratch.

Firstly I've painted up and cut the holes in spare MR2 dash that someone kindly gave me

That's now fitted and doesn't have a huge crack across it

The sump plug seemed pretty loose last time I changed this oil, so this time I took it off and tapped an M15 thread in there and fitted an oversize plug. I cleaned it out too although I was very pleased to see how clean it was.

It seems to be smoking a little when cold, all clear after a mile or less but idling from fresh cold there is a fair bit of blue smoke. In addition the VNT seems to be getting pretty clogged and producing over-boost limp mode (nearly all the time recently). I took the Turbo off and cleaned it up. I attacked the VNT with oven cleaner then a little time in the ultrasonic cleaner at work, its now totally free. I replace the turbo cartridge with a new one and checked the oil supply.
I also replaced the heaters for cold starting and took the injector nozzles off and ultrasonically cleaned them too.

Finally got it all back together yesterday which was nice as my crappy 106 has given up and the Scimitar still waits patiently for Pre MOT prep in a few months.

Has it cured it.....

It seems not. I just went out to cold start it again and its still smoking away. Oh well, its got lots of new bits and works.

More to come.

Jamesrl · « **Reply #244 on:** January 17, 2016, 05:27:54 PM »

I had a similar cold start problem with a boat engine, turned out to be slightly retarded timing.

A quick reset and all was fine again.

lozzzzzz · « **Reply #245 on:** January 17, 2016, 05:50:55 PM »

I could always try and look at the timing again but I did time it properly with VagCom before I got the car MOT'd (thanks Dick).

Dickjotec · « **Reply #246 on:** January 17, 2016, 07:39:15 PM »

You are welcome to vag com again. Are you winterising your bio? A splash of petrol might help while the injectors warm up.

lozzzzzz · « **Reply #247 on:** January 17, 2016, 08:57:30 PM »

That's very kind Dick, I might take you up on the offer again to alter the IQ value, it seems to judder no idle while coasting (but not stationary). A little googling seems to reveal that altering the injection quantity can stop this

Jamesrl · « **Reply #248 on:** January 17, 2016, 09:51:15 PM »

Blue smoke, as you probably already know, is unburnt feul so a bit of advance beyond standard could be an advantage.

Jamesrl · « **Reply #249 on:** January 17, 2016, 11:59:23 PM »

Just had another thought, you say you cleaned the injectors but did you check and reset the crack off pressure of each one?

If the opening pressure is incorrect so will any static timing setting.

Dickjotec · « **Reply #250 on:** January 18, 2016, 09:10:02 AM »

I have a pop tester if you want to test them.

1958steveflying · « **Reply #251 on:** January 18, 2016, 12:02:24 PM »

I have the same engine in my Galaxy and FWIW it also has a slight blue smoke on idle from cold in the winter.

lozzzzzz · « **Reply #252 on:** January 19, 2016, 08:09:46 PM »

I'll try the IQ change first then look at the timing again, then perhaps I should pull the injectors out again check the pop pressure if thats ok Dick

.

Jamesrl · « **Reply #253 on:** January 20, 2016, 01:17:13 AM »

Quote from: lozzzzzz on January 19, 2016, 08:09:46 PM

I'll try the IQ change first then look at the timing again, then perhaps I should pull the injectors out again check the pop pressure if thats ok Dick .

Don't forget spay pattern is more important than crack off pressure.

lozzzzzz · « **Reply #254 on:** December 24, 2017, 12:26:15 PM »

Hi everybody. It's been a long time.

Mr Two has done a stirling job of carting me about. I've done 50k miles in it all bio powered

unfortunately the slightly heavy clutch is beginnine to annoy my leg and i'm looming for an auto alternative (then i'm gunna electrify Mr Two with leaf parts

)

One of my options is the audi 2.5 v6 engine. I believe it might be one of the last engines that I could put dirty bio in (b70-90). I don't want to have to make b100 really.

Does anyone have any experiance with the VAG 2.5 V6 engine on bio? Or any advive to offer?

Thanks in advance

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