Thermostat housing bolts (1 Viewer)

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arklatex60

arklatex60

Joined
Feb 5, 2024
Threads
2
Messages
10
Location
texarkana tx
Well I broke a bolt off of the lower t-stat housing. I need to remove everything now so I can extract the bolt from the head. I went to the dealer in Texarkana today and ordered the gaskets I needed but the bolts are 5 to 7 weeks out. The parts guy couldn't give me the bolt size and thread pattern. I was wondering if any of you guys could help a fella out? Knowing my luck I'll probably break the rest off while I'm in there. Any tips on removing these bolts? Heat then pb blaster?
 
arklatex60 said:
Cool thanks! You wouldn't happen to know the part number for the four bolts on the upper t-stat housing also?
Click to expand...

9161160845​

https://partsouq.com/en/catalog/genuine Plug in your VIN and you'll be able to look up any part for your 60 series. Partsouq is a great place for ordering parts or you can take the part number, plug it into google and search for other vendors.
 
Rustyj41 said:
@ToyotaMatt
Click to expand...
arklatex60 said:
Well I broke a bolt off of the lower t-stat housing. I need to remove everything now so I can extract the bolt from the head. I went to the dealer in Texarkana today and ordered the gaskets I needed but the bolts are 5 to 7 weeks out. The parts guy couldn't give me the bolt size and thread pattern. I was wondering if any of you guys could help a fella out? Knowing my luck I'll probably break the rest off while I'm in there. Any tips on removing these bolts? Heat then pb blaster?
Click to expand...


,


the oem toyota japan spec. parts studs and non-serrated flat nuts 8 pc kit is a neat and relevant choice idea here as well too ...

however , i had not begun to dig and dive deep into the whole stone age reasoning that more often then not 1 or more of the #4 mark head 2 of them 2 bolt housings / 4 of them 4 bolt housing M8 sandwich SEMS single spring washer only and

also the 2 the #5 mark head block face bolts often snapped too ?

when the m8 sandwich bolts brakes , that in now a 50/50 chance death sentence for the lower housing , due to many factors of being able to successfully remove all of the broke old bolt , and also retail and meet in there to be chased or re-tapped ,,,,,

the HELI COIL method is flawed here , and they always came out with a new bolt , of pulled out as your cinched the 4 sandwich bolts down ...

some times i got lucky here , very often not too ...

i tried every new TV Blue screen latest 1-800 # / SORRY NO COD's liquid Steel wonder stuff the Billi Mayes rambled on about way more they
my boy Vinny about his iconic and legionary SHAM -WOW ! 😆


the block face bolts are a bad design or nobody cared after toyota all at once ditched the JIS # mark head bolts grading system globally , this some how related to the Mysterious 007 2000GT Level Conspiracy Japanese Crime Syndicate not whisper on the whole translon from gold zinc plated hardware w / # mark heads , that transformed overnight to Silver Blue Zinc Bolts with no more easy to understand and way way kooler to collect like match box cars for a 15 year old boy who needed a high school guidance counselor approved work permit to do his home work , and then be glued the big new wonder 36" tall 36" wide microfiche readers ..🤣...


anytime one block face snapped upon you using all the right star patterns and full cans of deep-creep , WD-40 , Slick-50 Rust-Killer " yea-right " :rolleyes:

the cause and effect of one side suddenly breaking free , and the one that did not = the one that did not 's Sand Cast Ear snapping off in your face then and there ...:confused:

heat from a torch made all above worse too .....


the below is the modern 2024 ( i discovered these in Japan , @ the Macmaster of Japan ..) .

the Plating on them is called Violet Blue Silver , this has the highest salt spray rating per the J.I.S .

as a by product , one heck of a BLING - Factor too ,,,,


i cant say i have ever snapped by hand 3/8 ratchet a #8 mark head any size spec. bolt ...

the #7 maybe 1 or 2 M6 ASCO / AISIN cross threaded by who knows hub dial bolts .... but that is a rare event in my toyota lifetime ....


below is my very very well R&D time spent answer ... to this Fred Flintstone Hot Dipped Galvanized , right now at your TOYOTA dealer today in 2024 ...
,

if i wanted HOME DEPOT hot-dipped Picnic Table Rated Bolts 91611-40825 & 91611-41025 , i would call my local 1-800-go-toyota ....
,


.

1709962442218.png


.



1709962430787.png
 
- the below TECH-Reel will help you further understand , and empower you through a 17+ Image slide show tutorial
please make sure to click on the Audion icon speaker lower LH corner if you only see what you need to also here
thanks ...
,
 
To get the broken bolt out, heat the bolt until cherry red and douse with wax or penetrant. Do this a few times, then extract depending on how the bolt broke. If bolt is below the surface of the housing, careful of the threads or you'll be installing a thread repair insert.
 
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