blown head gasket

gloops

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Aug 10, 2007
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richmond
The day has come- suddenly masses of white smoke out the exhaust pipe- sweet smelling.
I assume its a BHG.
Could anyone who has had the work done recently suggest what costs should be to fix this.

thanks.
 

jake8790

Life's too short for N/A
Dec 18, 2011
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There are a couple ways you can do it. An OEM headgasket, resurfaced head, and gasket set is doable for a couple hundred. The thorough way is to pull the 7M, have the block decked as well, and use a metal headgasket. In this case you might as well do a full rebuild which will be over $1000. If the oil has any coolant contamination I would pull the engine and rebuild.
I would also use ARP headstuds for cheap insurance.
 

supranewbie

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Mar 23, 2011
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Toyota head gasket is around $100. ARP head studs are another $100-$120. That's a couple hundred already and the head hasn't even been milled yet... If all you do is resurface the head, use OEM gaskets and ARP studs you might be able to do it for $500. But you really won't know the damage til you tear into it. It's not hard to spend a few thousand dollars rebuilding a motor.
 

Backlash2032

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Sep 20, 2010
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How much do you think milling a head costs??? 300 bucks? If you're careful you can reuse the factory gaskets for almost everything.. or get away with replacing very little lol. it is very possible to do it for 2-300 bucks.

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jake8790

Life's too short for N/A
Dec 18, 2011
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Head milling and cleaning is $40 at the machine shop here.
I fixed my BHG for around $250 for an OEM gasket, ARP bolts, and head milling. The gasket still looked perfect when I tore it apart a year later after blowing it up.
It has a MHG and studs now.
 

Backlash2032

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supranewbie;1977351 said:
100 plus 100 equals a couple hundred. Pretty sure milling a head costs more than zero.

You threw out a 500 dollar number. Yeah, it can get to 500 dollars, but it can be done for 200 or so

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7M4EVR

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Oct 8, 2012
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fah, fah away
From someone who has been there askign the same question:

If you don't know EXACTLY what you're doing and you go the $200 route, expect to do it over very soon. If nothing else you will constantly be watching the temp gauge, coolant level, and color of exhaust. Chances are your bottom end could very badly could use a rebuild anyway. It's a choice and that choice depends on alot of things, including your financial situation, what you want out of the car, your mechanic abilities, things like that. Do it right, do it once, and don't worry about it. Or do it for $200 bucks and gamble. You can guess which way i went, and yeah my car was down for over a year while i saved up and rebuilt it slowly, but do I regret anything now?...Not at all.
 

Grandavi

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Sep 25, 2008
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7M4EVR;1977417 said:
From someone who has been there askign the same question:

If you don't know EXACTLY what you're doing and you go the $200 route, expect to do it over very soon. If nothing else you will constantly be watching the temp gauge, coolant level, and color of exhaust. Chances are your bottom end could very badly could use a rebuild anyway. It's a choice and that choice depends on alot of things, including your financial situation, what you want out of the car, your mechanic abilities, things like that. Do it right, do it once, and don't worry about it. Or do it for $200 bucks and gamble. You can guess which way i went, and yeah my car was down for over a year while i saved up and rebuilt it slowly, but do I regret anything now?...Not at all.

^^ This.

If your building for power a cheap fix will give you a headache later.
If your building for a quick fun cheap car that isn't your daily driver... have at it... do it cheap and you may get lucky.
If you have to rely on the car? Do it right. Right aint cheap unless your an excellent mechanic.
 

supranewbie

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Mar 23, 2011
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Backlash2032;1977396 said:
You threw out a 500 dollar number. Yeah, it can get to 500 dollars, but it can be done for 200 or so

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You are correct. I threw out a 500 dollar number. I still think $500 would be low if you had someone do the job. If you read the first post, it sounds like that is what he is asking about. But I guess maybe he wasn't. Didn't mean to start a pissing match.
Just for the record though, I agree with Grandavi and 7m. I don't want a car with a $500 head gasket replacement, let alone a $200 one.
 
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gloops

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Aug 10, 2007
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richmond
Thanks everyone for the input- I need to get this done (it's my only car) maybe by Toyota- they want Almost C$500 for the gasket set alone yet I see Ebay deals from sub $50 to $300. Tempted to go with the Ishino set being wary of the more cheap end suppliers.
Any feedback on reliable gasket supplier would help . Realize I am looking at maybe C$1000 to do this!
 

supranewbie

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Mar 23, 2011
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I would recommend using the Toyota head gasket. Driftmotion sells a gasket set that is fine if you throw out head gasket. I think the set is around a hundred bucks. He also sells a Toyota head gasket for around a hundred bucks. Make sure that whomever you have do the work uses ARP studs torqued to ARP specs and not Toyotas.
Good luck!
 

Grandavi

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Sep 25, 2008
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Calgary, Alberta, Canada
If you can afford it, get the block and head decked correctly and go with a metal head gasket and ARP studs. Head gasket issue gone when done this route properly providing your head isn't warped, cracked, etc. and whoever laps the block does it correctly. It can be done with the engine in the car although its a bit difficult.

As a second suggestion, at that point (where I was with my 7M) its sometimes smart (albeit a lot more expensive) to pull the engine to do it right and look at the bottom end. Because your headgasket let go, there is a possibility that it was leaking coolant into the bottom of the engine which can cause bearing damage. Because I only wanted to do it once, I did this with mine. (Although I also did pistons/rods/bearings..etc... to withstand 700 crank HP)
My build cost me a little over 10,000 because I did NOTHING myself. From the firewall to the front bumper everything was gone over, all the little "supra" issues dealt with PRIOR to them becoming issues and its all rock solid. My car is good for about 200-300,000 km now with very little worry. Just proper maintenance and she's good to go.

of course.. I built mine as a secondary vehicle that only sees summer driving and if I had to do it again, I would buy one that was already done and save myself a LOT of money and time.
 

7M4EVR

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Oct 8, 2012
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fah, fah away
Grandavi;1977458 said:
if I had to do it again, I would buy one that was already done and save myself a LOT of money and time.

Your odds of finding this are very slim I believe...The few guys that do it right probably don't let their cars go very often. If they do they probably know what they have, and it isn't going to be very cheap to get. If it is decently priced you better be on it quick because it will go fast. All of that plus the fact that unless there is a build thread, receipts, or you know the person, you have to wonder why they are selling it. But I have seen a couple that I would probably buy if I had the money. I'm definitely glad I went through all the research, and effort of building mine. I may not have got everything right, but at least when something fails I will know how/why/and what to do differently next time.
 

atmperformance

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Sep 17, 2013
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San jose
my mildly blown head gasket got me home after 45-50miles, by the end of the week i couldn't go around the block without loosing nearly half a gallon of water. tore into it thinking head gasket. Now my motor's out block is lapped, near bearings, new plugs, new pistons, arp rod bolts. yeah was just going to be a head gasket job... didn't work out that way.