Steel bypass pipe mods on a 2005 Toyota Hilux 2.7 engine

This is the mods i did to my steel bypass pipe without removing manifold or fuel lines etc. Everything is now where i can see it and easy access to hoses if the need arises.
I hope this mod is helpful. It saved me a lot of time, effort and expense...

 

Can you list the parts required for this mod Please - Thanks for any reply.

 

Toyota = "steel water bypass pipe" - Toyota = gasket to suit - some flexible gasket glue - a length of coolant hose 16mm inside diameter at least 650mm long with a 90 degree bend on one end. Some hose clamps. " Cut 170mm out of the center of the steel water bypass pipe ". Smooth and flare cut ends and connect the two end pieces as per posted pictures.... Cheers mate.

 

Thanks - now I'm going to have to figure out how to find this when mine goes. I am wondering how many miles you had when it went kaput ? I have a flare tool for small lines but not for a pipe - do you have a link to what you used ? Is it important to flare the pipe ? I'm surprised there isn't more interest in this post. Thanks for any reply.

 

G'day George,
My 15 year old Toyota had 100,000 kms. (60,000 miles ) on it when i changed out the plastic water bypass pipe. The original plastic pipe had'nt failed or was'nt it leaking at all. I replaced the pipe for peace of mind due to the vehicles age. After i had removed the plastic pipe, i found it to be in very good condition and not really needing to be changed at all, possibly due to regular coolant changes. After cutting 170mm out of the centre of the new steel pipe, i carefully crimped about 1/8 inch of the cut edge of the pipe inwards to avoid damaging the heater hose when pushing it on. No real need to flare the pipe ends. Since doing this water bypass pipe replacement i have clocked up almost 10,000 kms ( 6,000 miles ) with no movement of the heater hoses or weeps or leaks anywhere. I also have an "Engine Guard" overheating alarm fitted to my Toyota for extra peace of mind when travelling. Check it out on their website "engineguard.com.au" I fitted the alarm myself, pretty easy and straight forward with good instructions
Cheers Trevor....

 

Thanks for your reply and all the information. I've got 137K on mine so I'll keep a eye on it. I change the antifreeze every 30K so hopefully that helps as you stated.

 

This is a very creative alternative to removing the intake manifold. I like the flared pipe ends, otherwise I'd be concerned about the hose sections getting loose after some time/heat cycles.
Although I've already purchased the manifold gasket, TB gasket and everything else for a "normal" repair and that's what I will likely do. Thank you for posting! Cheers!

 

Radiator hoses don't leak why would these hoses leak ?

 

While this thread hasn't seen as many hits as you might expect, there's lots of interest in the topic. See this other thread, started in 2012 and now 11 pages long:
https://www.tacomaworld.com/threads/water-bypass-pipe-no-1.201053/

 

what's the difference between NEW OEM TOYOTA 05-15 Tacoma 2.7L WATER BYPASS METAL PIPE w/ GASKET 16268-75110 and NEW OEM TOYOTA 05-17 Tacoma 2.7L WATER BYPASS PIPE METAL w/ GASKET

Toyota 16268-75130 Engine Coolant Bypass Hose

16268-75130. Any reply appreciated.