Jump to content
SAU Community

Recommended Posts

The other morning I blew the head gasket on the way to work.

A mate and my brother and I have removed everything including the head, and that's where we finished last night.

I have ordered a new head gasket, intake manifold gasket, exhaust manifold gasket and a new gasket for between the intake manifold and the plenum.

Question is, what do I do now? Number 6 cylinder is full of coolant, its all mucky where the gasket used to be.

I've never ever done this before and neither have my mates, so any help would be HUGELY appreciated!!!

Link to comment
https://www.sau.com.au/forums/topic/28573-blown-head-gasket-what-now/
Share on other sites

jeez that brings back memories :cool:

if you havent already get the coolant out and let the cylinders dry, without taking it to an engine specialist i dont know if theres any way to tell whether or not the bores have been affected. just empty the coolant out and hope for the best i guess!

The bores will be fine. Blow the coolant out with air or soak it up with a rag. Find a scraper to scrape the remainder of the head gasket off the deck. Dont lean the scraper to one side leaving deep scratches. Then use a honing stone (the large rectangle one you use for knifes) rub the deck of the eng evenly using petrol to assist. Make sure you use the fine side as they are generally course one side and fine the other. When the deck is apsolutley spotless and you can wipe it with a white rag and it doesnt change colour from dirt then the head is ready to fit.

Michael...

Be sure also once back together to run thin oil for first start up, till it gets warm, drain it, new oil, run it again, tune it, drain it, then put new oil, do 500km, drain it again, then your good stuff.

Also do engine flush as well.

Will take a few hundred k'ms for all water to disappear, also, as it gets into small galleries etc etc.

Just watch for no color turning from black to cream!.

Cheers guys for the help

I just got another stock Nissan head gasket

Was gonna put it all back together on Saturday after draining the sump and coolant, cleaning the block to a mirror finish :D

But then found that there were two studs that had snapped off in head for the exhaust manifold. so i've gotta get them removed. Also the place that tested and cleaned my head pulled the cams etc out so I have no idea how to replace them! A mate said he'd do that tomorrow for me :)

Hopefully get the car running again soon!

Cheers guys for the help

I just got another stock Nissan head gasket

Was gonna put it all back together on Saturday after draining the sump and coolant, cleaning the block to a mirror finish :)

But then found that there were two studs that had snapped off in head for the exhaust manifold. so i've gotta get them removed. Also the place that tested and cleaned my head pulled the cams etc out so I have no idea how to replace them! A mate said he'd do that tomorrow for me :rofl:

Hopefully get the car running again soon!

Put new bolts everywhere, will cost a measly $30 or $40 bucks but will save you damaging your engine again,. Get new head bolts, manifold bolts, exhaust housing bolts etc etc.

Go get em now!

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • As far as I can tell I have everything properly set in the Haltech software for engine size, injector data, all sensors seem to be reporting proper numbers.  If I change any injector details it doesnt run right.    Changing the base map is having the biggest change in response, im not sure how people are saying it doesnt really matter.  I'm guessing under normal conditions the ECU is able to self adjust and keep everything smooth.   Right now my best performance is happening by lowering the base map just enough to where the ECU us doing short term cut of about 45% to reach the target Lambda of 14.7.  That way when I start putting load on it still has high enough fuel map to not be so lean.  After 2500 rpm I raised the base map to what would be really rich at no load, but still helps with the lean spots on load.  I figure I don't have much reason to be above 2500rpm with no load.  When watching other videos it seems their target is reached much faster than mine.  Mine takes forever to adjust and reach the target. My next few days will be spent making sure timing is good, it was running fine before doing the ECU and DBW swap, but want to verify.  I'll also probably swap in the new injectors I bought as well as a walbro 255 pump.  
    • It would be different if the sealant hadn't started to peel up with gaps in the glue about ~6cm and bigger in some areas. I would much prefer not having to do the work take them off the car . However, the filler the owner put in the roof rack mount cavities has shrunk and begun to crack on the rail delete panels. I cant trust that to hold off moisture ingress especially where I live. Not only that but I have faded paint on as well as on either side of these panels, so they would need to come off to give the roofline a proper respray. My goal is to get in there and put a healthy amount of epoxy instead of panel filler/bog and potentially skin with carbon fiber. I have 2 spare rolls from an old motorcycle fairing project from a few years back and I think it'd be a nice touch on a black stag.  I've seen some threads where people replace their roof rack delete with a welded in sheet metal part. But has anyone re-worked the roof rails themselves? It seems like there is a lot of volume there to add in some threads and maybe a keyway for a quick(er) release roof rack system. Not afraid to mill something out if I have to. It would be cool to have a cross bar only setup. That way I can keep the sleek roofline that would accept a couple bolts to gain back that extra utility  3D print some snazzy covers to hide the threaded section to be thorough and keep things covered when not using the rack. 
    • Probably not. A workshop grade scantool is my go to for proper Consult interrogation. Any workshop grade tool should do it. Just go to a workshop.
    • In my head it does make sense to be a fuel problem since that is what I touched when cleaning the system. When I was testing with the fuel pressure gauge, the pressure was constantly 2.5 bar with the FPR vacuum removed. When stalling, the pressure was going up to 3.0 bar (which is how it should be on ignition).
    • ECUtalk pages don't mention they support the ABS computer (consult port has more than one CAN), so you might just need a different scan tool. But, I would expect ABS is a different light to the brake warning/handbrake light, do you see an ABS light come on for a few seconds when you turn the key from ACC to IGN? But since you said: I'd have a look at the ABS sensors in the rear hubs to make sure they are not damaged, disconnected etc.
×
×
  • Create New...