1988 FJ62 Manifold Heat Shield Bolt Size?

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Old Nick

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Howdy,

Finally getting around to putting new-to-me manifold heat shields in the ending bay. Got the old rusty ones un-installed, but the bolts aren't re-usable... rusted to nothing.

Like an idiot, I chucked the bolts without measuring them.

Would any of you happen to have the bolt size to hand?

I'm guessing m6/1.25

Thanks in advance for helping this dummy out.

:flipoff2:
 
Howdy,

Finally getting around to putting new-to-me manifold heat shields in the ending bay. Got the old rusty ones un-installed, but the bolts aren't re-usable... rusted to nothing.

Like an idiot, I chucked the bolts without measuring them.

Would any of you happen to have the bolt size to hand?

I'm guessing m6/1.25

Thanks in advance for helping this dummy out.

:flipoff2:
Yes. :flipoff2:
 
Yeah, M6 X 1.25 is probably correct and short, maybe 12 or 15 mm. That's my guess.
Thank you! Much appreciated.

Here's to a great Saturday.
 
Well, made a run to ACE to collect M6/1.25 and M8x1.25. The M6 is too small, and the M8 is tight, meaning that it will only enter the manifold 3 or so threads deep... :hmm:

If anyone else should need the manifold insulator bolts, Partsouq came back with this pn:

91621-40812​

went ahead and ordered these (7 in all) from Ourisman... "bolt w/washer."
 
Well, made a run to ACE to collect M6/1.25 and M8x1.25. The M6 is too small, and the M8 is tight, meaning that it will only enter the manifold 3 or so threads deep... :hmm:

If anyone else should need the manifold insulator bolts, Partsouq came back with this pn:

91621-40812​

went ahead and ordered these (7 in all) from Ourisman... "bolt w/washer."
Clean the threads.
 
Well, made a run to ACE to collect M6/1.25 and M8x1.25. The M6 is too small, and the M8 is tight, meaning that it will only enter the manifold 3 or so threads deep... :hmm:

If anyone else should need the manifold insulator bolts, Partsouq came back with this pn:

91621-40812​

went ahead and ordered these (7 in all) from Ourisman... "bolt w/washer."


this bolt is this below Nick , it's simply Violet Blue Solver Plated Mild Steel , JIS mark head #4 rating , a simple body Bolt more or less .... 91621-40812

its ONLY a Single SEMS flat washer equipped also , small Diameter washer too , a outdated JIS metallurgy part # original to the 3F-E engine 1984-1994

- will it do the job , sure-maybe ? the surface treatment has changed 3 times since 1984 , but part # stayed the same ...fyi


-
below is a much better modern age 2024 JIS option M6x12mm long , offered by Overland Metric , a fellow SUPPORTING VENDOR here om MUD ....

- i have been using these for many years and they hold up long-term .....




1731191708843.png



,





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ALL the below spec's matters to me , and i have replaced ALL on my 2005 SUPER HILUX sema-concept build , GHOST and beyond .....

  • JIS B1187 B Hex SEMS Bolts with Captured Split Washer and Flat Washer
  • Marine Grade A4-70 (316) Stainless Steel
  • Superior to Typical A2 Stainless Hardware in Corrosion Resistance
  • Correct JIS Sized 10mm Wrench Size
this is the way ...........
 
I used those SS bolts with some high-temp Nickle anti-seize on the FJ60 exhaust manifold heat shields. Worked great. Had to remove them not too long ago, and they came out like butter.
 
I used those SS bolts with some high-temp Nickle anti-seize on the FJ60 exhaust manifold heat shields. Worked great. Had to remove them not too long ago, and they came out like butter.
Right on. Thank you for that.
 
I used those SS bolts with some high-temp Nickle anti-seize on the FJ60 exhaust manifold heat shields. Worked great. Had to remove them not too long ago, and they came out like butter.

i am not so sure that i agree the little white tube with no markings of any sort included in the .1mil clear umbrella bag with that 100pc wad of 16" black UV Rated zip-ties in the non-street legal / DOT Logo-Free H4 KIOTo -60P80 base-kits is technically high-temp Nickle anti-seize ...?
On page 3 of the KANJI instructions sheet , right below the all black-lines w/o any color code tracer stripes detail spec's it is stated , the included Cignis white
dispenser ( Contains 8% #2 Grade Nickle-Slag ) ...
i personally use only API Certified 100% Troy-Weight Silver Anti-Seize ......


it's totally worth those extra Nickels in your pocket at the end of the day ..



.

1731585918450.jpeg

 
Not to derail this fine thread, but has anyone added reflective heat shield to the existing metal? Would this be a benefit while the metal shields are out?
Thank you!

IMG_4538.jpeg
 
Not to derail this fine thread, but has anyone added reflective heat shield to the existing metal? Would this be a benefit while the metal shields are out?
Thank you!

View attachment 3772509
I can’t see how it would hurt. Why not?
 
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