Head Retorque

[suprastroker88]

I have a 1986.5 with a 7mgte swap that I bought from a friend. it still has the original headgasket on with around 90,000 miles on it. It's never been retorque or anything. It's still all at factory stock specs.

This might be a dumb question or been discussed multiple times, but can someone tell me how do I retorque the head? I just want to tighten it down so that I can get a little more life out of it until I save up to do my rebuild.

 

[CajunKenny]

Follow the TSRM Head Bolt sequence and take her up to 72 ftlbs.

This may cause more harm than good though. Someone may chime in with an experience or two behind them.

I retorqued my first Supra to 72 ftlbs. All was good until I wrecked it around 7k miles later.

 

[suprastroker88]

Follow the TSRM Head Bolt sequence and take her up to 72 ftlbs.

This may cause more harm than good though. Someone may chime in with an experience or two behind them.

I retorqued my first Supra to 72 ftlbs. All was good until I wrecked it around 7k miles later.

Isn't stock torque specs like 55lbs?
I was told to take it down to about 80lbs.
How could this do more harm than good?
Where can I find the TSRM?

 

[shutupnshift04]

If your going to go through the work of retourquing the heads you might as well spend the extra couple bucks, do it right and put a headgasket in.

 

[suprastroker88]

If your going to go through the work of retourquing the heads you might as well spend the extra couple bucks, do it right and put a headgasket in.

Well I have a Greddy 2mm headgasket that the previous owner gave to me with the car. I am saving that for the build Im saving up for. Im planning on doing a forged build. I just want to get all I can out of this stock setup before I have to rebuild. Thats why I was trying to just retorque right now.

 

[jdub]

Cajun is correct, the max you want to take stock head bolts up to is 70-75 ft/lbs. More torque is not better.

Depending on the condition of the HG, you can induce a BHG at this point. (Hence the more harm than good comment)

 

[gtsfirefighter]

Don't take the chance of pushing it over the edge. 90k on original HG? I'd say it's pretty close to the edge already.

 

[suprastroker88]

Don't take the chance of pushing it over the edge. 90k on original HG? I'd say it's pretty close to the edge already.

ok. so it sounds like i'm better off just leaving it alone right now until i rebuild.
is there anything i can do to get as much life as possible out of this stock HG besides just not driving it at all?

 

[gtsfirefighter]

ok. so it sounds like i'm better off just leaving it alone right now until i rebuild.
is there anything i can do to get as much life as possible out of this stock HG besides just not driving it at all?

No boost, but then you'd just as well not drive it.:icon_razz

 

[CajunKenny]

Where can I find the TSRM?

This is will not EVER fail you! It's better than your best friend and girlfriend combined. This IS the lifeline of your Supra!

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/default.aspx

 

[suprastroker88]

This is will not EVER fail you! It's better than your best friend and girlfriend combined. This IS the lifeline of your Supra!

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/default.aspx

lol thanks. ill bookmark it.
side note.......... my best friend is my supra, and anythings better than my girlfriend at this point :3d_frown: she told me to sell my supra! :umno: she doesn't like it

 

[KicknAsphlt]

Dump the bitch.... :evil2:

 

[suprastroker88]

Dump the bitch.... :evil2:

Its on my list of things to do :naughty:

 

[KicknAsphlt]

Lmao!

 

[suprastroker88]

would anyone here have a spare pair of plugs to wire the knock sensors? i found out that my knocks are not even wired. there's no plugs on my wiring harness for them (old and chewed up) so until i get a new harness, i need a quick fix. any help?

 

[queenskid926]

dont do the retorque.

Retorque runs you the risk of either bhg or pinching the hg which will result in a leak. I was in the same boat as u and tried to do a retorque being very carefull following the headbolt pattern and what i got out was my coolant going from fresh green to brown from oil mixing, and a steady stream of bubbles coming out of the rad cap upon startup, and brown foam forming at the rad neck from all of the bubbles lol.

and now im changing the headgasket

so either leave it along or just put on a new stock hg with arp hardware and ull be fine.