As a new 80 (94) owner, just want to give a quick thank you to the community and the forum as it has been invaluable to my "restoration" project. With that said, I don't know what I don't know and stumble across random nuggets of tips, advice and feedback.
While I'm not one to normally question Toyota engineers, with my recent engine teardown I have found a lot of complexities that I plan to minimize or remove based on a lot of the solutions found here.
So my question really to the community here is what do you recommend I fix, improve, remove, etc while I have the drivetrain completely removed?? Can be anything from as simple as removing the PAIR valve or swapping to a 3-link. Would be great to hear the recommendations.
Below is a list of things I have "improved" based on what I have found on the forums:
PAIR Valve:
I didn't know much about the PAIR valve other than it was removed on 95s and later. I didnt pay much attention to this during the tear down until I notice the piping was slightly dented so I looked it up to find most people deleting it. I removed it and replaced the coolant pipe for 95+ for good measure.
Rear Heater Delete:
I'm not even sure what to say about this but I hate the coolant lines, seems like an afterthought. My 80 had a small coolant leak from the rear heater hoses when I bought it and I replaced it with the HPS kit to stop the leak. Probably my least favorite job I've ever done (maybe its not that bad for others) and immediately looked for another solution. Thanks to the forum I deleted the rear heater and piping and sourced the bypass hose from Japan (Two actually to have a spare and save on shipping since it's an unusual part that wont be made forever) which removed like half of the coolant connections.
O2 Sensors:
With the PAIR removed I'm moving the O2 sensors to the exhaust manifold, I havent seen anyone post issues of this and I like that they are a little more protected (despite the heat). I purchased the YR van plates to cover the old ports on the exhaust (great find on the forum here).
EGR:
I debated deleting this all together, pulling the lines and adding the plates but despite not having emissions requirements, that may not last for forever so I think my plan is to keep the EGR and simply disable it. I have the Huddexpo plug and BB's that I'll use to turn everyhing off. The EGR system also seems like an afterthought and as someone who subscribes to KISS, I'm tempted to remove the EGR completely.
Blue Fan Clutch Mod:
Not sure if this is needed but have it since everyone else has it.
Wiring Harness:
Sadly can't be sourced new for a 94 so refreshing this with a complete cleanup, new connectors (previous owner ziptied them), new wrap (with heat tape) and everything else to hopefully make this thing last another 300k
Below is a list of things that I'm also thinking of fixing or "improving" with the drivetrain removed and rebuilt.
Fuel Filter Relocation (Why is it under the intake, what a PITA)
Steering Joint replacement
105 Sectorshaft upgrade
Wits End Steering Cooler
3-link (Not sure this will happen but super easy to cut and weld new stuff with the drivetrain gone)
That's the main list so far but open to others thoughts on things I should do while I'm in there. What would you do with everything out?
Thanks!
While I'm not one to normally question Toyota engineers, with my recent engine teardown I have found a lot of complexities that I plan to minimize or remove based on a lot of the solutions found here.
So my question really to the community here is what do you recommend I fix, improve, remove, etc while I have the drivetrain completely removed?? Can be anything from as simple as removing the PAIR valve or swapping to a 3-link. Would be great to hear the recommendations.
Below is a list of things I have "improved" based on what I have found on the forums:
PAIR Valve:
I didn't know much about the PAIR valve other than it was removed on 95s and later. I didnt pay much attention to this during the tear down until I notice the piping was slightly dented so I looked it up to find most people deleting it. I removed it and replaced the coolant pipe for 95+ for good measure.
Rear Heater Delete:
I'm not even sure what to say about this but I hate the coolant lines, seems like an afterthought. My 80 had a small coolant leak from the rear heater hoses when I bought it and I replaced it with the HPS kit to stop the leak. Probably my least favorite job I've ever done (maybe its not that bad for others) and immediately looked for another solution. Thanks to the forum I deleted the rear heater and piping and sourced the bypass hose from Japan (Two actually to have a spare and save on shipping since it's an unusual part that wont be made forever) which removed like half of the coolant connections.
O2 Sensors:
With the PAIR removed I'm moving the O2 sensors to the exhaust manifold, I havent seen anyone post issues of this and I like that they are a little more protected (despite the heat). I purchased the YR van plates to cover the old ports on the exhaust (great find on the forum here).
EGR:
I debated deleting this all together, pulling the lines and adding the plates but despite not having emissions requirements, that may not last for forever so I think my plan is to keep the EGR and simply disable it. I have the Huddexpo plug and BB's that I'll use to turn everyhing off. The EGR system also seems like an afterthought and as someone who subscribes to KISS, I'm tempted to remove the EGR completely.
Blue Fan Clutch Mod:
Not sure if this is needed but have it since everyone else has it.
Wiring Harness:
Sadly can't be sourced new for a 94 so refreshing this with a complete cleanup, new connectors (previous owner ziptied them), new wrap (with heat tape) and everything else to hopefully make this thing last another 300k
Below is a list of things that I'm also thinking of fixing or "improving" with the drivetrain removed and rebuilt.
Fuel Filter Relocation (Why is it under the intake, what a PITA)
Steering Joint replacement
105 Sectorshaft upgrade
Wits End Steering Cooler
3-link (Not sure this will happen but super easy to cut and weld new stuff with the drivetrain gone)
That's the main list so far but open to others thoughts on things I should do while I'm in there. What would you do with everything out?
Thanks!
I’ve barely wrapped my head around the basics of my wife’s ‘95 and then I picked up a ‘94 that needs attention…because I apparently can’t just make things easy and efficient.
