P0306 and coolant gone, time to pay the piper

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

NLXTACY

Wits' End
Joined
Dec 7, 2007
Threads
111
Messages
20,769
Location
Medford, OR
Well its been almost two years since I tried the Bar's Stop Leak trick to "solve" my blown head gasket:
https://forum.ih8mud.com/80-series-...-gasket-months-before-doing-supercharger.html

I kept putting it off because I just never had time to deal with it. Well I really don't have time now due do my work/travel schedule but now I don't have a choice.

Once again this little mod saves the day:
https://forum.ih8mud.com/80-series-tech/222467-faq-installing-photomans-coolant-level-sensor.html

This time the alarm goes off while my wife is driving on her way back from taking my son and his friends to Magic Mountain. The alarm was followed by the CEL. She checked the number and told me it was 306. So she came home and its now parked.

Checked the radiator after it cooled down. All the coolant was basically gone. Quick check on this site points to exactly what I was worried. Head Gasket has finally given up the ghost.

So I have some choices and I really want to be as pragmatic as possible. Here are my choices as I see them considering my wife and I agreed that we absolutely do NOT want to get rid of the truck. We were really hoping to hit 300k but oh well. Options:

(Caveats: I have a used low-mile S/C collecting dust on my garage floor & the engine block as a front and rear main seal leak)

• Keep the block in place and just rebuild the head and replace the headgasket after making sure the block is still flat. Using all OEM gaskets and quick and dirty. I'm not a fan of this because it doesn't take care of the oil leaks and the S/C doesn't get installed but its the cheapest and more importantly the quickest.

• Remove the entire engine, have the head rebuilt and purchase a brand new short block from American Toyota for $2900. If I went this route I would most certainly install the S/C.

• Call up Christo Slee and figure what the timing and approx cost of the 4.7 retrofit would be. I am considering this route as I would just get the :princess: something else to drive and then just ship the truck over to Slee. I would guess I would be contacting LDQ for a low mileage 4.7

• SBC but Im in Cali. The money isn't scaring me away as much as the potential to be without the truck for months at a time. If the conversation could be done in just a few weeks I would probably be heavily leaning this direction. [edit: Just talked to Georg @ Valley Hybrids. He has a back log of work pushing him well into summer. That removes the SBC as an option for me. Pricing on the SBC with a Vortec would approach $10k.]

• Diesel is just too many unknowns and not enough of them done on the 80 series within CA.

Then of course WHO does it all? Certainly not me.
• K&H (pro: very close to me, I trust him. Con: doesn't touch conversions)

• Georg (pro: has done tons of conversions for the CA market. Con: is in Stockton, hard NOT to have him do all sorts of other stuff which could get super spendy :flipoff2:)

• Robbie (pro: the man KNOWS his shiznit and I know it will be done right and if we have a spare bedroom he will come to me. Con: I need to find others around me to make it worth his time)

• Christo (pro: the man KNOWS his shiznit and I have been lusting over doing the 4.7 conversion. Con: I would need to have the truck shipped to Colorado and I'm fairly certain I will be paying for his new basement :flipoff2:

BTW, I really don't want to have to buy my wife another vehicle just yet so if anyone has a cruiser they aren't driving and want to make some rent money on it ;)

So give me all of your feedback and help me make as informed a design as possible and of course I will document every step of the way of what happens here.
 
Last edited:
I have been considering what I will do when I have to address this problem myself. The hardest part of this decision, in my mind, is that each person's circumstances are unique. Only you can decide what is best based on your own money, perf. goals, logistics, etc...

Soooooooooo with that said, an LS motor swap is very attractive to me but the TRD supercharger and a Snow Performance water/meth injection kit would probably be cheaper and just as fun. The problem is finding a S/C, or a Safari Turbo kit for that matter. Have a look at chemical intercooling (like Snow Performance) and try not to get excited by cheap, safe, horsepower!

If you decide to let the S/C go, keep me in mind. Good luck with the teardown.
 
Last edited:
If I were in your described position where money really isn't the limiting factor, here's what I'd do:

I'd have your engine completely gone through and rebuilt with attention to details that come into play when it's boosted. Like maybe going to ARP head studs and getting a slighter thicker Cometic HG to overall reduce compression. Once it was all buttoned up, I'd pay Mot for his Safari turbo set up that is at Man-A-Fre. Take it to them and let them install the complete system except for the Uni-Chip. Sell the supercharger to off-set expenditures.

Only a very healthy V8 is going to give you more bang for the buck. And I don't include the 4.7 Toyota one in that group. It's just a whole bunch simpler in terms of all the electronics, controls, etc and the future of working on it. Everything will still be just like an OEM 80-series and the Safari stuff is simple, durable and proven.
 
^^^What Onur said. But alas I am a purist.

Time for rebuild. My suggestions is this:

"• Remove the entire engine, have the head rebuilt and purchase a brand new short block from American Toyota for $2900. If I went this route I would most certainly install the S/C."

However use that dusty S/C to offset the cost.

Just my $0.02

Good luck and I look forward to hearing which direction you take.
 
Totally depends on the use of the truck and your goals I think. When I had a supercharger it kind of took away some of the "go anywhere" aspect of the truck since it had to have high octane fuel, but the power sure is addicting! Good luck with what ever you decide.

Ryan
 
I would not do a swap Joey. You are a Toyota guy. Stay that way.

;)

Yes I know. Just sent you a PM btw.

I am more leaning towards 4.5 bored to 4.7 and adding the S/C OR going the 100 series 4.7.

Timing means more than cost right now. If I can get this done reasonably soon I don't have to drop $30-50k to find something for my wife to be happy with. If it takes too long, say months, then she gets a new car. Screw that. :grinpimp:
 
Totally depends on the use of the truck and your goals I think. When I had a supercharger it kind of took away some of the "go anywhere" aspect of the truck since it had to have high octane fuel, but the power sure is addicting! Good luck with what ever you decide.

Ryan

Whats funny is I've always been using 91 Octane. Like since day one. It was only 20¢ more per gallon so do you "really" feel it in the wallet? I say no.
 
I'd have your engine completely gone through and rebuilt with attention to details that come into play when it's boosted. Like maybe going to ARP head studs and getting a slighter thicker Cometic HG to overall reduce compression. Once it was all buttoned up, I'd pay Mot for his Safari turbo set up that is at Man-A-Fre. Take it to them and let them install the complete system except for the Uni-Chip. Sell the supercharger to off-set expenditures.

I considered Turboing it but the wife said no to that. She makes a good point that we can get a really nice 60 or even 80 for the cost of the turbo.
 
I guess your original post was confusing to me then. You'd have to know that any V8 swap would be well north of that price - right? And if you're talking about Slee's Toyota 4.7L then unless you have that motor completely rebuilt, it's not a valid comparison.

You could get the Safari system installed for ~$7K and you live right around the corner from them. You would spend maybe $5K to have your current motor taken up to the 1.0-mm oversized Toyota pistons and prepped properly. From there, all your future work is still on a 1FZ-FE and everything works just as it did.

Only a newer Chevy V8 like Kirk's or the others folks are doing is going to provide you with that. Plus, the Safari system is already CARB certified.

Good luck.
 
I'd loan you my 80 for money but yeah, I am far away. It only gets driven 2-3x a month.

Get another 1FZ and put in the SC!
 
CLOWN you are correct about it all being spendy. My wife just has this thing in her head about going turbo and is against it. I'm not going to push it. Everything seems to be on the table.

Btw I'm not a man-a-free fan.
 
Impreza said:
I'd loan you my 80 for money but yeah, I am far away. It only gets driven 2-3x a month.

Get another 1FZ and put in the SC!

I'd rent it for money if you were closer :flipoff2:

Renting Fords doesn't make either of us happy
 
I completely understand, I only brought it up since MAF truly is the "last resort" in terms of getting the turbo system. That, and you are "local". Otherwise, I would not have even brought it up!

But I can say that having had the s/c and the turbo, there is no comparison.
 
Could someone post up the costs, torque, HP, and MPG for the various options? IDK. Why doesn't the wife want a turbo (never had one myself)?
 
I'm new to the forum but if you can get the LC to n. san diego there is a shop here who replaced my head gasket and repaired pitted pistons for $1700. I have not had a problem since. He's fair and specializes in toyotas. I'm sure he could do the install in the S/C too. Tom at Autotyme in Vista CA. has done most of the work on LC and its 175k and running strong!
 
Just talked to Georg @ Valley Hybrids.

He has a back log of work pushing him well into summer. That removes the SBC as an option for me. Pricing on the SBC with a Vortec would approach $10k.
 

Users who are viewing this thread

Back
Top Bottom