Jump to content
SAU Community

Recommended Posts

Intro

Hello SAU!

My name is James but I go-by Jay. I hope the start of everyone's new year is going as planned, if not I hope it gets on track. I live in the US and I bought my 1991R32 from Okinawa, Japan to TX, so far its received a warm welcome. I haven't got a chance to push it yet because I have something going on that I hope you guys can help me with. I put it on the DYNO and found out I have a misfire. I opened up the spark plug area to remove the coil packs & spark plugs and all of a sudden I notice that I have coolant in 2nd spark plug well, where would it come from? I cleaned everything and put in new plugs and took in for a spin, the coolant came back :(. 

 

James

  • Like 1
Link to comment
https://www.sau.com.au/forums/topic/468591-intro/
Share on other sites

Hi mate, that's definitely not the start to GT-R ownership you would have hoped for.  Basically you've been stitched up by a dodge seller.

There's 3 main possible causes of your issue. 1) Leaking head gasket 2) Cracked/warped head 3) Cracked block.

Either way I'm afraid you're up for a few dollars to fix.  The order of the possibilities above is the order that you would hope for as in just a leaking head gasket would be the most preferrable and cheapest outcome and a new/replacement block and the required mechanical work will cost you a bomb.

Welcome to GT-R ownership where your wallet lives in a constant state of openess!

 I really hope you can get some assistance from your seller (but doubt it) and that when it's all sorted you get to enjoy the car in all it's glory.

  • Like 1
Link to comment
https://www.sau.com.au/forums/topic/468591-intro/#findComment-7804356
Share on other sites

I shoota_77, thank you for the insight. I need to clarify my post a little bit. I bought the car in Dec 2014 when I was stationed in Okinawa, Japan.

In May of 2015 I bought a rebuilt engine from a shop, the engine came with metal gaskets, tomei cams, r33 crank, N1 oil pump, new and a water pump. I added a power fc, R34 N1 Turbo's, 850cc injectors, tomei fuel rail, sard fuel regulator, oil relocation kit, oil cooler, orc super single clutch, big intercooler, aluminum radiator, boost controller, new coil packs, and plugs.
When I retired Dec 1 1016 the Air Force let me bring my car to the US. My wife is going to kill me cause I have to put more money into this car...the Gtr life lol

  • Like 1
Link to comment
https://www.sau.com.au/forums/topic/468591-intro/#findComment-7804366
Share on other sites

Oh ok.  I didn't pick up on the time frame!

Fingers crossed it's not too $$$ to fix so the wife doesn't make you trade it in for a Camry and a beige cardigan! (I think you have them there too??).

Hopefully head off, quick skim, new head gasket and you're good to go!

  • Like 2
Link to comment
https://www.sau.com.au/forums/topic/468591-intro/#findComment-7804373
Share on other sites

Hey Jay, welcome to the site!

As this is the newbie intro's section, this topic wont get much attention from the peeps in the know. I can move it to the tech area for more exposure if you'd like. Although, @Shoota_77 seems to have you covered. :)

Link to comment
https://www.sau.com.au/forums/topic/468591-intro/#findComment-7804382
Share on other sites

That's a bummer...

If you mean coolant is in the valley around the spark plug and not in the cylinder itself...

I'm going to say head is cracked. If it was cyl 1, 4 or 5 there is a grub screw that may be leaking through the thread but cylinder 2 doesn't have one. No other way for coolant to get in there other than through a. Crack in the head. I'm assuming all other spark plug areas are dry except for cyl 2?

Link to comment
https://www.sau.com.au/forums/topic/468591-intro/#findComment-7804442
Share on other sites

Its been a while but arent there some plugs up around that area? I assumed they were for coolant but could be wrong. Worth pulling the whole coil pack assembly off i would think if you havent already done so.

Also, its easier to undo the 5 bolts that hold the coil pack brackets in place to do plugs than to pull each individual coil pack off. If it helps :)

Link to comment
https://www.sau.com.au/forums/topic/468591-intro/#findComment-7804492
Share on other sites

Wow! Thank you for all of the technical information gents, I really appreciate it. It looks like I'm going to have to pull the head off. Question, would you guys get the crack repaired (if it's cracked) or buy a new/refurbished head?

Link to comment
https://www.sau.com.au/forums/topic/468591-intro/#findComment-7804537
Share on other sites

That depends on what the relative costs are (where you are) and how prepared you are to spend money.  If you drop a lot of money on stripping the head, you may as well rebuild it at the same time (or at least do those things that it appears to need).  If you do this, then you're investing in the future of that head, and to certain extent that engine and that car.  If you've bought an R32 GTR, then you possibly have intention to keep it forever, so in the long term you won't hate spending the money.

By the same token, buying a used running head that you can just slap on means that you now have 2 heads.  And everyone knows that if you own an R32 GTR you need at least 2 of everything!

Link to comment
https://www.sau.com.au/forums/topic/468591-intro/#findComment-7804571
Share on other sites

Get a quote on the repair first and make a call then.  A brand new bare head over there you'll pick up pretty cheap ($800 USD) so the repair would need to be comfortably less than that to stick with it.  The new head *shouldn't* need machining (but should be checked) so there's less to spend on it but you would still need to get all of your valves refaced to suit.  While you're at it I'd personally throw a set of bigger valves and stronger springs in it and make this into an opportunity to gain something out of a bad situation....

Link to comment
https://www.sau.com.au/forums/topic/468591-intro/#findComment-7804572
Share on other sites

Great Information Shoota & GTSBoy. I was thinking of saving up some mula and buying a crate engine. I would save my current engine and learn how to build an engine so I can have as Mr. GTS PUT "have 2 of everything"! I'm learning about engines, all of the parts, and how they work. I tell you it's a lot to learn. I now will look up how the valves work and the reasoning for having them bigger and of course why have stronger springs.

Link to comment
https://www.sau.com.au/forums/topic/468591-intro/#findComment-7804575
Share on other sites

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

    • Here is the mess that I made. That filler there was successful in filling dents in that area. But in the middle area. I can feel dents. And I've gone ocer it multiple times with filler. And the filler is no longer there because i accidently sanded it away. I've chased my tail on this job but this is something else lol. So I'm gonna attempt filler one more time and if it doesn't work I'll just high fill primer the door and see where the issues are because guidecoat is of no use atm.
    • Ok, so I think I sort of figured out where I went wrong. So I definitely overthinked it, and I over sanded, which is probably a large part of the problem. to fix it, I ended up tapping some spots that were likely to be high, made them low, filled them in, and I tackled small sections at a time, and it feels a lot better.    I think what confused me as well is you have the bare metal, and some spots darker and some are lighter, and when I run my finger across it, it' would feel like it's a low spot, but I think it's just a transition in different texture from metal to body filler.    When your finger's sliding on the body filler, and crosses over to the bare metal, going back and forth, it feels like it's a low spot. So I kept putting filler there and sanding, but I think it was just a transition in texture, nothing to do with the low or high spot. But the panel's feels a lot better, and I'm just going to end up priming it, and then I'll block it after with guide coat.   Ended up wasting just about all of my filler on this damn door lol  
    • -10 is plenty for running to an oil cooler. When you look at oil feeds, like power steering feeds, they're much smaller, and then just a larger hose size to move volume in less pressure. No need for -12. Even on the race cars, like Duncans, and endurance cars, most of them are all running -10 and everything works perfectly fine, temps are under control, and there's no restrictions.
    • Update: O2 sensor in my downpipe turned out to be faulty when I plugged in to the Haltech software. Was getting a "open circuit" warning. Tons of carbon buildup on it, probably from when I was running rich for a while before getting it corrected. Replaced with new unit and test drove again. The shuffle still happens, albeit far less now. I am not able to replicate it as reliably and it no longer happens at the same RPM levels as before. The only time I was able to hear it was in 5th going uphill and another time in 5th where there was no noticeable incline but applying more throttle first sped it up and then cleared it. Then once in 4th when I slightly lifted the throttle going over a bump but cleared right after. My understanding is that with the O2 sensor out, the ECU relies entirely on the MAP tune and isn't able to make its small adjustments based on the sensors reading. All in all, a big improvement, though not the silver bullet. Will try validating the actuators are set up correctly, and potentially setting up shop time to tune the boost controller on closed loop rather than the open loop it is set to now. Think if it's set up on closed loop to take the O2 reading, that should deal with these last bits. Will try to update again as I go. 
    • More so GReddy oil relocation kits, sandwich plates, etc. all use 10AN fittings. And same, I've only used 10AN and my car sees track work (circuit, doing laps, not 10 sec squirt business).
×
×
  • Create New...