240 overheating

[silpena]

hey guys i just got my car back together after a cracked head gasket. i had it all replaced. New thermostat,shaved head(due to warping) and water pump. When my car started up in like 5 min it started to over heat. Do you guys think it could be the radiator. In the past before i took the head off i put some of the that block sealer...obviously didn't work do u think it could have clogged my radiator? my car has been sitting for like 4 months with no coolant so it was dry and some of that stuff i think was still in there. I thought maybe i need to bleed the system of air since maybe hellla air got into the engine.

[Felipe]

radiator flush

[silpena]

my mechanic said it wouldn't work. I'll try it out as a last resort when i get the car towed home and bleed the system. First start on the cheapest then buy a new radiator. Anyone know f that stuff really cloggs up radiators. I used that block seal for my head.

[Brandon93240]

I've replaced about 100 radiators with that crap sitting in the bottom of the radiator. I'd get a cheap koyo factory replacement and pull your thermostat and drill a small hole at the top to help air escape when you bleed it.

[silpena]

ok, the air is bleed, found out it is the radiator. There are patches all over the drivers side that are cold and other side is hot. Damn stupid block seal should have never used it. Other then that i have a vacume problem i need to connect the pcv hose to the vavle, get a new line to the iacv and clean maf sensor. I'll know by tuesday if it ove heats still. For less than 500$ isn;t too bad for oil pan removal and installation, assemble timing cover, cams, chaines, distrubitor, set timing and all of setting the valve cover, removal of radiator and install plus with rodding of radiator n clean..not too shabby and hes gonna hook the pcv line and fix all the leaks. Most shops wanted to charge me like 700+ for all this.

[Razi]

radiator flush

radiator flush.

[silpena]

tried all ready.....before i flushed it there was that gunk in there with coolant but i drained when removing the head and its been sitting there dry for like 4 months. So thats out the way. I put a new oem thermostat like 100 miles ago and new water pump like 1k miles ago. Tested out the fan and it worked great. So radiator might be plugged. If not any suggestions? I all ready bleed the system and so did my mechanic.

[Razi]

Do the fins on the radiator seem messed up alot?

If those are messed up, usually the radiator becomes less effective.

[silpena]

no they are fine and very clean, just spots over the radiator seem cold... there arn't any leaks anywhere.

[Razi]

Weirdness...

[neverlift]

ok flush it with the heavy duty stuff 2x then once you think the block seal is out, bleed the air and make sure ALL your clamps are new or in very good shape. I just got done messing with a 03 xterra overheating due to factory hose clamps/corrosion around the weak stock clamps, replaced them and removed build up, all is fine. just a thought

[silpena]

what heavy duty stuff do u recommend so i can get my mechanic todo it before taking it out and sending it to get rodded? Another thing this block seal said it wouldn't clogg radiators and it did..so do u think i should contact the company and tell them they f'ed up my radiator and buy me a new one plus the labor charges all that. If my radiator is clogged then so is my heater and i thats too much for me right now.

[neverlift]

IF you feel confident in proving they are in deed at fault then yes by all means contact away. You will need a receipt/bottle and a PA. It will be hard and you will spend more money on an attorney then to fix your car, lol its funny how the us is set up sometimes. Law to protect you, if you have extra monies to blow. You can have hard proof and still be left holding the short end.

[silpena]

eh screw it i lost the bottle and reciept. I'll just hassle them for a refund plus see what i an get, but seriously i regret putting this stuff in. If i were to sue them i sue them for alot more than parts.

[Brandon93240]

Block seal isn't made to sit in a open/semi dry radiator for 4 months, it hardens up like concrete, I think I have a Bruick(if you know why I called it a Bruick then you are in the know)radiator that has some in it, I should cut it open and show you what it does to radiators. Honestly for what you've spent so far just get a new one, Koyo factory replacements are only around 100 bucks and its something you won't have to worry about. Hope you learned a lesson about alot of the bs products they sell at carpart stores, a good 90% of it is just snake oil.

[silpena]

yeah i learned my lesson but first i'll get it rodded out and then buy a used one cheap. I was allready planning to buy a koyo for the summer heat. oh yeah show me a pic of it. You think i shouldn't waste the time getting teared apart and cleaned? I thought i got it all out when i flushed it out after using it. I flushed it like 4 times for days, i guess that stuff really is crap anyways i won't have fun pulling out the heater core if i was in my a/c class i could do it alot easier.

[Brandon93240]

Yeah honestly I think you'd be wasteing your money, you can get a fact replacement pretty cheap. The heater core can be tuff for some just take your time and if you get pissed just drink a beer then get back to it so you don't break something in anger.

[silpena]

heh ehe heh i guess it worked.... all i need is to file my stuff in. Now do you guys think i should try and get a koyo from them??

here what they sent me today:

Dear Sir:



We received your email regarding our product, Permanent Head Gasket & Block Repair w/Nanotechnology, 32 Fl Oz. We will need to send you a claim form regarding your request for reimbursement of your radiator. Please provide us with your name, address, and telephone number. Upon receipt of your address, we will mail out the claim form. The claim form must be completed and return with copies of receipt and documentation to support your claim. Please let us know if you have additional questions or concerns.



Christine RichieCRC IndustriesTechnical Information [email protected]: 800-521-3168Fx: 215-674-5147

I just hope i can find the reciept and the bottle.

[lilcadet101]

Hey nice you got it working maybe you guys could help me with mine also. I have a 89 240sx fastback, and the thing keeps overheating. i changed the water pump, the thermostat, and i flushed the system. there are no leaks, the radiator is good and i just bought a brand new rad cap and topped of the rad with coolant. The car idles at normal temp, but when i drive about 5 miles it starts to shoot up in temperature. The coolant doesnt smell like gas and there is no oil in the rad either. but the resevoir boils and the needle goes sometimes way past the H on the gauge. MY guess is it's probably the fan clutch, because on the freeway it cools when i go fast but on the street it gets waayy hot. what do you guys think?

[Brandon93240]

Does the clutch roar? Also what does it feel like when you free hand spin it?

[93HATCH240]

Make sure you didnt put the clutch fan on backwards . I did that and couldnt figure out why it kept overheating. Replaced everything. But I put the clutch fan on the right way and no more over heating.

[lilcadet101]

what do you mean by roar? and when i spin it with my hand it only does a 180 and doesnt really spin freely.

[silpena]

usally u can tell tell if your fan is working. have some one look at your fan right when you turn off your car. It should only spins like 3 times, if it keeps going then i would replace it. Other Then that i could tell you too pressure test your system i had the same issue but it was head gasket. It had a minor crack in it between the water jacket and the cylinder. Does it over heat only on stops and it boils or when ever you kinda give it some gas it goes down? All it takes is like once or twice past H and your car is done. I allready replaced my head gasket and had it shaved off since it warped in the middle.

[lilcadet101]

it sometimes cools when i give it gas or when im flying down a hill the heat will start to drop, but when i stop is gets really hot.. do think there is air in the system?

[silpena]

you know what i have no idea. I just got my radiator back in and my car still heats up when i'm at stand i bled it like crazy and it still heats up. Except now its not going close to H Just like 2 lines to it I believe there still is air in there. I might bleed it one more time. If not then remove thermostat to make it easier and still if not.....well i guess...remove thermostat.