Please help me rid of this notchy shifting

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Re: Please help me rid of this notchy shifting

Postby lalojamesliz1 » Mon Feb 17, 2020 1:09 pm

I'm beginning to think it's just my transmission :shoots:
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91 Celica all-trac gen3 swap (small-med $$$ sponge)
69 mustang 408w (large $$$ sponge)
08 sequoia 5.7L
14 avalon
02 taco dbl cab V6 turd
and a 2 car garage :shoots:
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Re: Please help me rid of this notchy shifting

Postby 93celicaconv » Mon Feb 17, 2020 3:32 pm

I continue to feel "confused" by your replies. What does the turbo have to do with a transmission swap?

Did your replacement ST205 transmission go through any inspection prior to you installing it, to ensure the synchros in it were good, your hubs had good teeth on them, etc.? Or did it come to you stating it was freshly rebuilt? Or did you rebuilt the ST2015 transmission before installing it?

If you didn't at least do a very thorough inspection (or take it to a transmission shop to do that for you), you run the risk of putting a transmission that is worn/damaged into your car thinking it should be good.
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Re: Please help me rid of this notchy shifting

Postby lalojamesliz1 » Mon Feb 17, 2020 5:10 pm

93celicaconv wrote:I continue to feel "confused" by your replies. What does the turbo have to do with a transmission swap?

Did your replacement ST205 transmission go through any inspection prior to you installing it, to ensure the synchros in it were good, your hubs had good teeth on them, etc.? Or did it come to you stating it was freshly rebuilt? Or did you rebuilt the ST2015 transmission before installing it?

If you didn't at least do a very thorough inspection (or take it to a transmission shop to do that for you), you run the risk of putting a transmission that is worn/damaged into your car thinking it should be good.


I meant that the turbo doesn't look overly worn indicating high milage. I know that's not the best way to tell or even a good way but it's the only way I have to my limited knowledge.
I wasn't able to do a compression test since it had sparkplug porcelain in one of the cylinders and that wouldn't let it turn over. Just trying to get a good idea on the condition of the engine to see if it was high mileage.
I didn't take the transmission to any shop for inspection. I was able to select all of the gears, it spun freely, stock clutch in great shape, no leaks,my axles slid right in. Nothing that would have made me THINK it was in bad shape.
I guess all I can do is build a pile of parts for the rebuild. Or do you have any other suggestions? Thank you for all of your help so far!
91 Celica all-trac gen3 swap (small-med $$$ sponge)
69 mustang 408w (large $$$ sponge)
08 sequoia 5.7L
14 avalon
02 taco dbl cab V6 turd
and a 2 car garage :shoots:
lalojamesliz1
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Location: Bakersfield, CA

Re: Please help me rid of this notchy shifting

Postby 93celicaconv » Mon Feb 17, 2020 5:22 pm

When driving, and when your engine is at a "relatively" high RPM and you let off the accelerator (to begin a coast), does your shifter pop out of any gear it was in at the start of the coast? Probably best to check this in each of the 5 forward gears to make sure you know. If it doesn't slip out of gear in any of the 5 forward gears, do it again and watch the shifter when you let off the accelerator pedal - just it jerk or move slightly towards the neutral position?

Knowing this gives a hint (but it is not definitive) about the condition of your hub gears.

Based on what you've stated so far, it is my opinion that your transmission synchros are badly worn.
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Re: Please help me rid of this notchy shifting

Postby lalojamesliz1 » Mon Feb 17, 2020 11:29 pm

93celicaconv wrote:When driving, and when your engine is at a "relatively" high RPM and you let off the accelerator (to begin a coast), does your shifter pop out of any gear it was in at the start of the coast? Probably best to check this in each of the 5 forward gears to make sure you know. If it doesn't slip out of gear in any of the 5 forward gears, do it again and watch the shifter when you let off the accelerator pedal - just it jerk or move slightly towards the neutral position?

Knowing this gives a hint (but it is not definitive) about the condition of your hub gears.

Based on what you've stated so far, it is my opinion that your transmission synchros are badly worn.


:cry:
91 Celica all-trac gen3 swap (small-med $$$ sponge)
69 mustang 408w (large $$$ sponge)
08 sequoia 5.7L
14 avalon
02 taco dbl cab V6 turd
and a 2 car garage :shoots:
lalojamesliz1
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Posts: 458
Joined: Sun Jul 23, 2017 3:03 pm
Location: Bakersfield, CA

Re: Please help me rid of this notchy shifting

Postby lalojamesliz1 » Mon Feb 17, 2020 11:34 pm

I'll start to build my parts for the trans rebuild for when it's time.

Anyone familiar with what's neccessary? Do all the bearings HAVE to be replaced or is just the synchros okay?
91 Celica all-trac gen3 swap (small-med $$$ sponge)
69 mustang 408w (large $$$ sponge)
08 sequoia 5.7L
14 avalon
02 taco dbl cab V6 turd
and a 2 car garage :shoots:
lalojamesliz1
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Posts: 458
Joined: Sun Jul 23, 2017 3:03 pm
Location: Bakersfield, CA

Re: Please help me rid of this notchy shifting

Postby Magroo » Tue Feb 18, 2020 12:34 am

I'm not suggesting you do this, but i run a modified mix that a lot of subaru guys run since their transmission is very similar.

Even tho it's still difficult to get in to first sometimes, I have found that it shifts smoother through the rest of the gears.

1 quart redline heavy shockproof
1 quart penzoil syncromesh synthetic
Top it off with redline 75w90ns about 3 quarts
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Re: Please help me rid of this notchy shifting

Postby lalojamesliz1 » Tue Feb 18, 2020 3:08 am

Magroo wrote:I'm not suggesting you do this, but i run a modified mix that a lot of subaru guys run since their transmission is very similar.

Even tho it's still difficult to get in to first sometimes, I have found that it shifts smoother through the rest of the gears.

1 quart redline heavy shockproof
1 quart penzoil syncromesh synthetic
Top it off with redline 75w90ns about 3 quarts


When its hard to put in first if the car is moving or standing still? I'm seeing it's normal for our transmissions to be hard to put in 1st when the car is moving
Are you running a e150f? That's the cocktail you run?
Thanks for sharing :)
91 Celica all-trac gen3 swap (small-med $$$ sponge)
69 mustang 408w (large $$$ sponge)
08 sequoia 5.7L
14 avalon
02 taco dbl cab V6 turd
and a 2 car garage :shoots:
lalojamesliz1
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Posts: 458
Joined: Sun Jul 23, 2017 3:03 pm
Location: Bakersfield, CA

Re: Please help me rid of this notchy shifting

Postby 93celicaconv » Wed Feb 19, 2020 11:21 am

I think your assessment regarding what is normal (hard downshifting into 1st with the car is moving) is only because the norm on these kinds of cars is that the synchros are generally worn down and few go to the major effort to repair (engine removal and all).

But to be brutally honest, it is not normal to have difficultly downshift (from any gear to any gear, unless maybe at highway speed and wanting to downshift from 5th to 1st). Synchros in good condition, with the correct trans oil (in these cars, that is a special oil), downshifting is pretty easy and normal. The 92-93 transaxles were built with some slight improvements to make the synchros more robust, but synchros on these still wore. Unfortunately, and quadruple case trans-axle that shares the same oil with hypoid gears and synchros has to a balanced oil that really isn't ideal for either, so synchros wore. Worse, if pure hypoid oil is used. And if only manual transmission synchromesh oil is used, bad for the hypoid gears.

That's why I would advise, for these particular type of cars, if the transaxle is out of the car, no matter how good the transaxle shifted before it was removed for whatever reason, have a transmission shop inspect it and plan for at least getting the synchro-rings replaced from a cost perspective.
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Re: Please help me rid of this notchy shifting

Postby lalojamesliz1 » Wed Feb 19, 2020 11:55 pm

Anyone here try using Toyota 08885-02106 toyota gear oil super? It's a GL-5 oem oil. I think it works for the e150f but just don't know if it's good for the e154f
91 Celica all-trac gen3 swap (small-med $$$ sponge)
69 mustang 408w (large $$$ sponge)
08 sequoia 5.7L
14 avalon
02 taco dbl cab V6 turd
and a 2 car garage :shoots:
lalojamesliz1
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Posts: 458
Joined: Sun Jul 23, 2017 3:03 pm
Location: Bakersfield, CA

Re: Please help me rid of this notchy shifting

Postby 93celicaconv » Thu Feb 20, 2020 12:31 am

lalojamesliz1 wrote:Anyone here try using Toyota 08885-02106 toyota gear oil super? It's a GL-5 oem oil. I think it works for the e150f but just don't know if it's good for the e154f

That's the only product we use in the two ST185's we have in the family!

The Redline75W90NS is supposed to be similar for these types of transaxles also - I just haven't tried it as long on the OEM product is (or at least was) still available. The OEM product is a bit pricey, so if you go that route, go with the dealerships that sell it wholesale.
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Re: Please help me rid of this notchy shifting

Postby lalojamesliz1 » Thu Feb 20, 2020 1:41 am

93celicaconv wrote:
lalojamesliz1 wrote:Anyone here try using Toyota 08885-02106 toyota gear oil super? It's a GL-5 oem oil. I think it works for the e150f but just don't know if it's good for the e154f

That's the only product we use in the two ST185's we have in the family!

The Redline75W90NS is supposed to be similar for these types of transaxles also - I just haven't tried it as long on the OEM product is (or at least was) still available. The OEM product is a bit pricey, so if you go that route, go with the dealerships that sell it wholesale.


Do you think it'll also work with the e154f? It should right?
91 Celica all-trac gen3 swap (small-med $$$ sponge)
69 mustang 408w (large $$$ sponge)
08 sequoia 5.7L
14 avalon
02 taco dbl cab V6 turd
and a 2 car garage :shoots:
lalojamesliz1
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Posts: 458
Joined: Sun Jul 23, 2017 3:03 pm
Location: Bakersfield, CA

Re: Please help me rid of this notchy shifting

Postby 93celicaconv » Thu Feb 20, 2020 10:56 am

I believe both the E150F and E154F are extremely similar, so the lubricant for the E150F applies equally well for the E154F.

Here is an interesting thread - it's old and it's long, but you mind find it useful. Lot's of subjective opinions within it, but if you find key points from those who researched, it should help you.

- viewtopic.php?f=43&t=19619
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Re: Please help me rid of this notchy shifting

Postby lalojamesliz1 » Thu Feb 20, 2020 12:59 pm

93celicaconv wrote:I believe both the E150F and E154F are extremely similar, so the lubricant for the E150F applies equally well for the E154F.

Here is an interesting thread - it's old and it's long, but you mind find it useful. Lot's of subjective opinions within it, but if you find key points from those who researched, it should help you.

- viewtopic.php?f=43&t=19619


I'm glad to hear it "should be okay"
I scored 6 liter cans for $110 :roll: yeah that's still alot but I hope it works out great.
I just went through that thread when I was searching about the Toyota super oil. Very informative like you say.
91 Celica all-trac gen3 swap (small-med $$$ sponge)
69 mustang 408w (large $$$ sponge)
08 sequoia 5.7L
14 avalon
02 taco dbl cab V6 turd
and a 2 car garage :shoots:
lalojamesliz1
Club Member
 
Posts: 458
Joined: Sun Jul 23, 2017 3:03 pm
Location: Bakersfield, CA

Re: Please help me rid of this notchy shifting

Postby Magroo » Thu Feb 20, 2020 10:51 pm

Did you ever check your "sugar cube"?


Check to see if its worn and just rotate it 90* if it is. This is what mine looked like before I rotated it.
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