- Thread starter
- #201
Started putting the new cams in. Gotta do valve adjustment next.
Builds 1FZ-FE TRD S/C Rebuild (1 Viewer)
- Thread starter thetoyotaman
- Start date
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Are you aware of any LC engine or transmission or T/C issues reasonably attributable to stock S/C use?
Not that I am aware of. There never were very many out in the wild so the sample is quite a small footprint.
Sooo would you guess a tranny outfit saying the factory transmission has an '87 % failure rate after installing a supercharger or turbo' is just marketingspeak? (I mean, technically, ALL transmissions fail, S/C or no, even if it's 50 years after install, but I'm guessing editorial subtleties elude them. Or maybe not...)
- Thread starter
- #205
That doesn't even make sense that a tranny outfit would say that. Some tranny's are very weak and some are stronger initially regardless of HP going through them. Google the GM TH200. It was notorious for failure. There are others.
From Google:
In OEM form, the unit was notorious for poor shifting, lack of durability and premature failure. In fact, GM was forced to settle a costly lawsuit on behalf of new car buyers because of early failures. Countless units were repaired under warranty, or discarded outright and replaced with the more durable TH-350.
From Google:
In OEM form, the unit was notorious for poor shifting, lack of durability and premature failure. In fact, GM was forced to settle a costly lawsuit on behalf of new car buyers because of early failures. Countless units were repaired under warranty, or discarded outright and replaced with the more durable TH-350.
AussieHJCruza
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I'd call that garbage. I don't like how the stock auto transmission shifts, and less so with a power adder, but to say that 87% fail with a power increase sounds like someone trying to sell you something.
Keep it cool and fill of regularly changed ATF, ensure the line pressure cable is properly adjusted, I doubt you'll have serious reliability issues at less than 300 wheel hp. If it was my truck I'd be budgeting for a nomad or extreme valve body sooner rather than later, but I wouldn't be doing a transmission build.
- Thread starter
- #207
Finally got around to measuring the valves with the new cams in and definitely am going to have to change some clearances to dial it in. Cam grinder said it would be spot on as old cams but it wasn't. Wondering if I should just aim for the middle of the adjustment or on the looser or tighter end. If I aim for the middle I might get the valve adjustment right the first time. I know some say go wider so when the head wears it's going the right direction or go smaller end of it for max power.
We are talking fractions of a percent going from tight to loose. I would shoot for right in the middle and that way you account for wear as well as things tightening up from getting hot.
- Thread starter
- #209
Side note, I originally put NGK Ruthenium plugs in this motor to try. I really liked them. Quick start and efficient at first. I had no idea about longevity with them but the gap had increased so much at 30k that I would recommend a 15K mile interval. You are not supposed to re gap and the material is softer. Based on tech support recommendation I'm going to switch over to a colder iridium plug which just so happens to be the stock 2UZ spark plug for adding the supercharger.
- Thread starter
- #210
I thought I'd give a quick update. Been drowning in my kids car problems and especially my daughter's 96 4Runner she bought this summer that's needed just about everything except a new drivetrain. It's been tying me up. Did some valve measurements and discovered I need some bigger shims than Toyota offers. I noticed some stores overseas that offer some. Wondering what the limit would be for the bucket on going oversize.
Malleus
Far west of Siegen
Use two.
- Thread starter
- #212
Never thought about that. Is that a thing? I'd prefer to find one that fits.
Incredible work. By chance do you know where to source these torx bolts? I’m approaching this same job and I’m anticipating complete destruction of the phillips screws.
- Thread starter
- #214
I had trouble finding these. I think there was a mud vendor that had them in the past so I ended up having to go to:
Hoping to get back to this soon. Planning on having some custom shims made for the ones I can't source and are oversize.
Hoping to get back to this soon. Planning on having some custom shims made for the ones I can't source and are oversize.
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- Thread starter
- #216
Having a fleet of cars with kids and projects seems you are always having to figure out how to prioritize them. The hundy has needed a lot of maintenance and steering work this year and is getting pretty close to being mechanically caught up. The 87 4Runner has been a slew of electrical problems, starting, and stalling issues. Yesterday, pulled the intake cam and shims to finish measurements and get these ordered. I haven't been able to find a US shop that makes custom shims since I need a few outside of the Toyota offerings. Looks like I'll have to order some down under.
sbman
Supporting Vendor
The shop that did my head was able to surface grind some shims to get the right size as needed. You might see if any machine shops are able to do that, there was something with the hardening he says that has to be right, but I don't remember the details.
- Thread starter
- #218
Problem is that some need to be oversize thicknesses.
sbman
Supporting Vendor
Yes I ordered some thicker ones and he ground them to the size I needed, minimized how many I had to order.
- Thread starter
- #220
Maximum Toyota size is 3.3mm. Where did you find larger ones? Thank you.
