Help!!! advice needed, error 34 and no ooomph!!!

[masterbateson]

Thank you for the advice and most importantly re assurance Peter.

I do all my own work including welding and really love getting my hands dirty and dragging my tool boxes out.

Think as soon as i get it home, i will take off the MAF and surrounding hoses to check them.
Next step will prob be checking wastegate etc and if poss I am going to then check timing.
I will have to retrieve my timing gun tho, as someone borrowed mine several years ago

Oh and maybe my newly ordered compression tester will get an outing,apparently its to big for a letter box and is sat at mr postmans office waiting.
Not that i think its got compression probs as car runs fine when not boosting.

[bobhatton]

Cam timing out or wastegate jammed open.

[masterbateson]

Bob if i go and pick this car up today with my dad, is there anyway of freeing off or lubricating this wastegate to get it operating?
Or is it an internal job/turbo off job?

P.s. and for anyone else who may find an article on turbos see linky

http://www.imoc.co.uk/technical/article/boost.htm

[markstevieandmads]

Bob if i go and pick this car up today with my dad, is there anyway of freeing off or lubricating this wastegate to get it operating?
Or is it an internal job/turbo off job?

P.s. and for anyone else who may find an article on turbos see linky

http://www.imoc.co.uk/technical/article/boost.htm

Where are you based? I'm sure a member will give you a hand.

Doesn't sound like much ,just like a split hose to me.

[masterbateson]

I'm based in preston but the car is over at newark, so its a fair treck.
I am becoming more confident the more i read old threads re the wastegate, that this is probably whats going on.

The symptoms certainly seem to match.

[masterbateson]

Well its all systems go,heading over to buy the car and bring her home, pics to follow.
Then tomorrow its axle stands and spanners out time.

[thomp1983]

As i said earlier, if the wastegate is jammed it will likely be the decat, cheap ones are badly designed and the wastegate gets caught on it

You won't need a timing light, if the timings out it's the static timing, ie. The alignment of the cams and crank to each other. Id start by actually reading and understanding what people have told you before picking up any tools

But well done on finally joining the club. Id also be checking the hoses from hell sooner rather than later

[thomp1983]

And if your getting it from newark id guess your coming over the m62 if so and he's about id pop it into sbits as you more or less go straight past it and see if pete minds giving you a quick opinion on the issue

[masterbateson]

Unfortunately Didn't see message about Sbits, but me and my new toy/baby made it home ok.
Then spent 2 hours cleaning an already clean car inside and out till it was dark and cold

Quick read on here and i will be outside Peering into engine bay.

1st jobs will be check all hoses Then will have to check that the wastegate isnt stuck open due to the decat thats fitted.

Hey ho in at the deep end!
I'm sure whipping the turbo off wont be that big of a job!
Famous last words and all.

[kev8611]

Its not a big job but there is no need to remove the turbo to check wastegate.

I would get a health check done also, particularly a compression/leakdown test just to confirm the condition of the engine. Check your timing aswell

[ashley]

Why are you taking the turbo off?

Your plan of action should be very simple:

1. Check if wastegate is fouling on downpipe
2. Remove top timing cover and check timing belt is in the correct place

And yes- check the boost pipes!

Edit:

Its not a big job but there is no need to remove the turbo to check wastegate.

I would get a health check done also, particularly a compression/leakdown test just to confirm the condition of the engine. Check your timing aswell

Beat me to it!

[masterbateson]

Spot the Newb! anyone
Certainly glad i dont need to take turbo off to check the waste gate.
Hopefully all will become clear once i am outside and looking at it.

Ta 4 the help, will report back soon, hopefully with good news.

[ashley]

You're gonna need this:

https://www.google.co.uk/?gws_rd=ssl#q=toyota+mr2+bgb

[thomp1983]

A cheap hand vacuum pump would be a worthwhile investment

[2mad]

To test your actuator/wastegate all you need is a ebay £5 foot pump .. if the actuator arm doesn't move like in the vid and it holds pressure its stuck open .. and the reverse , if it doesn't move and doesn't hold pressure actuators blown ..


Vid .. http://vid948.photobucket.com/albums/ad ... e_test.mp4



edit .. Foot pump , £4.46.. http://www.ebay.co.uk/itm/Foot-pump-foo ... 4d2d10e02e


The gauge is worthless so t-ing a proper boost gauge in can help with diagnosing boost/vac problems.

Good luck

[masterbateson]

Bit of a update as been rooting under the car on my back on my drive snd later took it round to a mates and slung it on the 2 post lift.

Found a couple of things

1 was just a blowing exhaust from the cat/downpipe junction, someone had managed to shear of head of a bolt, managed to get a m10 nut on the broken thread and tighten up, also put some exhaust sealant paste on the gasket where it was leaking/ blowing from.

2. may well be my prob it seems the wastegate may be seized, how easily/freely do they move?


Noticed that the actuator arm at the wastegate end was showing at its base a section of rod which was shiny,(in other words looks like it was normally insode the wastegates case)

Managed to persuade it to go back into the waste gate but not sure if its working.
Car seems a bit better but still not 100% right.
Its like its got major turbo lag, its only when revs get to 5k that the turbo kicks in.
Here's a few pics.

I take it this vacuum actuator is the waste gate?

Does this look right?


heres another but i thought BOV usually went over near where ive put the circle in pic above, but in pic below you see its over nr intercooler.



On another note whilst on the lift i found this cover loose on the drivers side drive shaft, what normally hold it in place?


and whats this blue thing?

[2mad]

Sounds like you have diagnosed the wastegate sticking on the downpipe .. never had this happen to me , guess you need to do some grinding on the downpipe so the wastegate can move freely ..

[thomp1983]

There seems to be another problem in your first photo you've missed unless it's my imagination and it won't lead to a pretty days work.

Blue thing im guessing is on the gearbox if so it's possibly the speedo drive, this a rev1 by any chance?

The metal cover thing is the driveshaft seal cover it's normally an interference fit with the driveshaft where it flares out just push it upto the seal and if it won't stay there hold it up and put a cable tie around the driveshaft behind it.

[masterbateson]

When you say waste gate rod/conector sticking on down pipe, your on about the rod from the actuator on the outside of the downpipe??? goes to a ball jointy hinge/ jointy thing.

Or are you saying there is something inside the downpipe thats sticking?

The rod from the actuator isnt touching anything i can see


And mr thomp can you give us all a clue, i dropped my crystal ball the other day.

[2mad]

The standard bov looks bypassed it need boost/vacuum to seal properly on boost .. its probably leaking too mate .