So I have a ticking...

[toml]

Snowed in?? You're in melbourne! *confused*


Anyway, my engine symptoms are getting stranger. Current list:

• Never starts first time when it is cold. When the engine has started recently (last 2 hours), it starts first time.
• Idles rough (idle is at a steady rpm but seems to miss/shudder) itermittently
• Loud hissing noise above 3000RPM/approx when boost starts spooling. (assuming boost leak or possibly broken stock BOV)
• Hissing noise just started under the car, at approximately where the exhaust passes the transmission oil pan (exhaust leak, broken cat, clogged exhaust?)
• Ticking noise still there... (haven't replaced any shims yet)
• forgot to add: When accelerating from a stop, pushing the pedal doesn't correlate linearly to RPM increasing. Feels 'tight' for the first 2000RPM, and the power seems to 'kick' in, not come smoothly...

... sigh ...

:runaway:

 

[IJ.]

Tom: I usually go out the Hume then across to Bright and over Mt Hotham and back in through Gippsland to break a new motor in!

Can't get over Hotham this time of year without chains!

 

[toml]

Tom: I usually go out the Hume then across to Bright and over Mt Hotham and back in through Gippsland to break a new motor in!

Can't get over Hotham this time of year without chains!

Ahh, fair enough - sounds like a beautiful drive for two reasons (the scenery and the freshly built engines!)

 

[IJ.]

Yep it's about a 1000km loop and has some fantastic roads!

 

[toml]

My main thought at the moment is, "is there anything which could be causing ALL of the above symptoms?"... any ideas?

 

[IJ.]

Maybe the cold start switch and injector.

ticking as discussed already

Hissing exhaust leak

If it has a boost leak it'll run like a sack and be inconsistant

 

[toml]

What are you doing up this early??

Thanks IJ, I'm going to go out and measure the resistance of the cold start switch and water temp sensor before I head off to work! *grabs the TSRM*

Jeesh, sounds like everything is going wrong in my car!

(I think IJ is a robot )

 

[IJ.]

Tom: Think of the 7M as a system

If anything is not right it will throw EVERYTHING out!

You really need to correct any and all boost leaks as with MAF it has a big impact on how it runs.

 

[toml]

Yeah, IJ, I understand... it's just annoying!

... so, I'm constantly asking myself "what next?". Well, received code 52 on the way to work. Knock sensor signal. Grumble grumble grumble...

 

[toml]

• Loud hissing noise above 3000RPM/approx when boost starts spooling. (assuming boost leak or possibly broken stock BOV)

Ah hah!

Pulled the stock blow off valve out this morning, i could blow air straight through it. That must be where the hissing is coming from. I can't wait to replace it (thinking HKS SSQV at the moment).


Also picked up a new fuel filter and two hilux sensor cables this morning so I can do the knock sensor rewire this weekend and fix my code 52!

Oh and my interior lock bezel came in from Japan this morning for only $10, I'm a happy boy today

 

[smokey]

The cars starting to come together hurrah!~

 

[toml]

Hurrah indeed!

Trying to find a place in Aus that sells HKS SSQV blow off valves with the recirculation fitting is another story...

Might have to get it from the USA

 

[smokey]

finding parts for this car in general is a PITA

i've been slowly working on my car again due to having a few days off work - managed to wire it all up myself (first try) in about an hour but i've also spliced a few new plugs and soldered a few(first try and learnt myself)

its good fun but i wish the thing would run!

 

[IJ.]

Having a really good run with my type3 TurboSmart plumbback Tom!

 

[toml]

Ordered a HKS SSQV kit for MA70, hopefully it gets here quickly

Still waiting on word of whether they can get the plumbback fitting for the SSQV in Australia - if not I'll either have to buy one from USA or get someone with a metal lathe to make me one

 

[toml]

Hmm, also, I just finished making up some replacement knock sensor wires D) ... trying to work out the best place to run them through into the cabin/glovebox?

I can just poke a hole in the rubber grommet that the ECU loom goes through and feed them through there, but the grommet in question seems to have a big air cavity inside, perhaps to insulate the ECU wiring against a lot of the car's vibrations, twists and turns.. not sure whether poking a hole in the grommet will defeat this at all :icon_conf

 

[toml]

Woo, no more code 52! Hurrah for the knock sensor rewire!

 

[mkiiSupraMan18]

lol

Only a mkIII owner would sing songs of praise after having to work on their Supra. It's good to hear you have it running though.

 

[toml]

Sigh the 52 code is back