2F Air Rail Plugs

[ToyotaMatt]

I like " performance oriented porting "



There is a chanfer or bevel at the bottom of the air rail ports , " almost " like a compression fitting on the 1981 2Fcylinder head i just Rebuilt

this must be for air sealing purposes i would think

The toyota ones are flow tested and do not interfere with the performance oriented porting known for in the 2F

 

[emac]

Exactly! Those guys using Lowes plugs are going to take a hit on the track!

 

[jembourbe]

And think of what a Lowe's plug is going to do to your resale value!

 

[Steamer]

I like " performance oriented porting "



There is a chanfer or bevel at the bottom of the air rail ports , " almost " like a compression fitting on the 1981 2Fcylinder head i just Rebuilt

this must be for air sealing purposes i would think

Correct! the threaded hole in the head is not tapered and not designed to do the sealing. The "End" of the air rail fittings or the (proper plugs) seal on that end meeting that chamfer. Putting a 1/4" npt tapered plug in the non tapered hole is really a mismatch but since the thread count is the same, folks get away with it and get them to seal. To each their own.

In my case the PO removed the rail tubing, cut the outer threads off and brazed them up in place. I'm afraid to remove them but if I ever have the head off I'll remove'em and do it with the right plugs.

EDIT 11/14/19.
Thought I'd mention that I finally pulled my diy brazed plugs and put in the oem plugs. Doing the oil galley plug thing inspired me to do these proper also.

 

[CHCP]

JimC's kits are on sale for $10 ea. kit

 

[blackbart]

JimC sells them and other desmog parts. He has a post about it in the vendor or small business classifieds

Can't seem to find JimC to order desmog parts can you help me out

 

[TEakins]

This is JimC

Toyota Land Cruiser specialty parts

TLC Performance. A Toyota Land Cruiser specialist shop, service, repairs, restoration and parts sales for classic FJ40, FJ45, FJ55, and FJ60 Land Cruisers

tlcperformance.com

 

[73FJ40]

Can't seem to find JimC to order desmog parts can you help me out

Did you try him at @FJ40Jim ? (of course, drop the @)

 

[Wildcat Walker]

These plugs are available from Dorman. Part # 090-109 They are M14-1.5x10mm. They come with sealant pre-installed on the threads.

 

[FJ40Jim]

Plugs & caps are available here:
2F Cap & Plug Kit - https://tlcperformance.com/products/cap-plug-kit

A note on thread sealant, loctite, antiseez.... After 1 or 2 years in service at 1,400degrees EGT, it's all moot. The loctite or teflon sealant is burned to ash, the antiseez grease is cooked off, leaving behind just the metal powder.