repairing my blown head gasket and in the process of preping/cleaning evrything. im not going MHG but i am using arp studs. I bought a stock replacement HG from a toyota dealer. im just trying to do a reliable build with maybe around 250hp. Here are some pics of my work for now and some basic parts going into the car. what can i use to prep and clean the old gasket residue off the block? happy to hear anytips you have about BHG repair.
BHG Repair
- Thread starter SUPRAHUMAN
- Start date
you NEED to clean all that stuck HG residue off the block or it WILL blow again, i used a gasket scraper, they do exist in a normal automotive section, after you think your done scraping get a straightedge and see if the surface is level and smooth from gasket material. then get permatex copper gasket spray, coat the gasket with that, those pistons look amazing still. crank pulley is fine still, nice choice of radiator hose,
what brand radiator is that?
what brand radiator is that?
yes i have a carbon scraper…same thing? but is there a fuild or solution you recomend to get the gasket crud off easier? thanks, i didnt know i could be so impressed with hoses. haha.
its a CXracing radiator..idk got it on ebay for a good price. the top of it looks alot beefier then the stock but i think it will fit…fingers crossed.
its a CXracing radiator..idk got it on ebay for a good price. the top of it looks alot beefier then the stock but i think it will fit…fingers crossed.
Last edited:
Don't coat a head gasket that has a surface finish on it, that Toyota gasket looks like it has one. Get the head lightly skimmed, don't skimp on it.
I've used a product called gasket stripper in the past for head gaskets, works very well, but smells and seems just like regular paint stripper to me, so maybe try some of that on the block. It's amazing what the stripper will bring out of the block, even when you think it's really clean.
I personally like to run a new head gasket with no coolant in the engine at idle for about a minute (just till the head starts to warm up around the plugs/exhaust) after I'm done and let it sit overnight after that. I have no evidence, but I believe it allows the head gasket to work it's way into the metal surfaces better, but that's just me.
I've used a product called gasket stripper in the past for head gaskets, works very well, but smells and seems just like regular paint stripper to me, so maybe try some of that on the block. It's amazing what the stripper will bring out of the block, even when you think it's really clean.
I personally like to run a new head gasket with no coolant in the engine at idle for about a minute (just till the head starts to warm up around the plugs/exhaust) after I'm done and let it sit overnight after that. I have no evidence, but I believe it allows the head gasket to work it's way into the metal surfaces better, but that's just me.
Typhoon;1822453 said:
I also strongly advise a chemical stripper as well, the metal surface MUST be absolutely clean for the gasket to bond properly to the surfaces.
sweet guys thanks for ur tips. im pretty sure i read something in the TSRM about using acetone.. im still waiting on the head at the machine shop but yes i am having it resurfaced, vac tested and valve jobbed. machine shop said the head looked good but it had 4 small spot welds witch wasnt a big prob.
so i shouldnt coat the toyota head gasket?
I cleaned the outside of my fuel injectors today but still plan to do clean the inside. Making a DIY fuel injector cleaning machine....anyone ever done this? I will post pics when i am done making it.
so i shouldnt coat the toyota head gasket?
I cleaned the outside of my fuel injectors today but still plan to do clean the inside. Making a DIY fuel injector cleaning machine....anyone ever done this? I will post pics when i am done making it.
Looking good man. I have never had a problem using an OEM gasket with no spray. They appear to have some sort of coating on them, so I would avoid using copper spray personally. I have removed heads off of an engine that had an OEM gasket with copper spray, and the gasket didn't adhere to the surfaces at all, I pulled the whole gasket off in one piece, no scraping or anything, so that kind of worried me. The gasket had bonded to all other engines I had pulled apart that used an OEM gasket.
Don't forget you MUST use a bottoming tap to tap all the headbolt holes out when you use studs. The stock holes are gunked up and do no thread all the way to the very bottom, so the studs will sit too high if you don't.
Don't forget you MUST use a bottoming tap to tap all the headbolt holes out when you use studs. The stock holes are gunked up and do no thread all the way to the very bottom, so the studs will sit too high if you don't.
Avicii;1823052 said:sweet i was wondering the same thing glad you askedhow much did the oem gasket cost from a dealer? cheaper than Driftmotion?
Not sure home much oem hg is at driftmotion but the oem stock replacment from toyota was 110$...explensive for an effing gasket but well worth the peace of mind i get from getting a quality stock replacement.
Turbobox;1823073 said:
thanks bro! yea thats what i figured. more preping and pics to come soon.
