Jump to content
SAU Community

R32 Gtr Blown Engine?

KILL HSV

By KILL HSV,
in General Maintenance

 Share

Recommended Posts

KILL HSV Proficient

KILL HSV

Posted
Posted

after launching my car it seems the engine has given way.

i took it to unique auto sports and they did a compression test which was pretty ugly. test came out like this, (1)26.5 (2)33 (3)35 (4)95.5 (5)95.5 (6)43.5, pretty bad hey.

they said there was a small chance that the main problem is a stuffed head gasket, but more than likely stuffed pistons and more. I really don't have the money at the moment to pay them to fix pistons, but if its just smashed valves then my mate thinks he could fix it.

from what my mate says, it sounds like the timing belt could have slipped because it is old and deteriorating, and in turn put the timing out so the valves hit the pistons and bent.

could this make the bad compression?

i don't have heaps of money to fix this car anymore so it really depends on what is wrong as to whether i can fix it. basically head gasket and head i could afford but pistons i can't, this is why i didn't get UAS to pull it apart in the hope that the problem was a head gasket and then find the bottom end was wrecked because i really can't afford that.

when you turn the key to start her up you just get starter noise and engine won't crank. but at the same time the cams are turning, so the timing belt is at least still attached.

anyone with any info would be much appreciated

Link to comment
https://www.sau.com.au/forums/topic/115208-r32-gtr-blown-engine/
Share on other sites
Duncan Grand Master

Duncan

Posted
Posted

Umm yes borken timing belt would stuff most of the valves, that would be pretty bad.

Did you get a quote for the head gasket....I think you will find its quite expensive even if that is the problem (and its probably not) There is an huge amount of labour to get the head off since you have to pull the intake and exhaust/turbs off as well.

If you really don't have the money then you have 2 choices....sell in broken and get bugger all for it, or get some mates who know what they are doing and pull it out and dissassmble it yourself....then you will know what is wrong and what you have to do. But if you go option 2 expect to be off the road for a long time.

Oh or option 3 which can be cheap if the head is OK....buy and rb30 bottom end (dirt cheap), 4wd sump adapter, chuck your head on and off you go.

Sorry for the bad news, but there is no cheap rebuild for an rb26, the parts are OK but the labour is a killer

wrxhoon Grand Master

wrxhoon

Posted
Posted

A leakdown test may tell you if the problem is c/head, bottom end or both .

Did this happen suddenly ?

Is she blowing blue smoke ?

Are the turbos still there in one piece?

If it happen suddenly you may have lost an exhaust wheel on the front turbo and she sucked some ceramic dust in. If that was the case she would be blowing plenty blue smoke .

If it happen suddenly it wouldnt be h/gasket unless you got her very hot .

As for timming belt jumping a few teeth and bending valves, maybe but when you hit valves you bend them enough not to have any compression. Take the front cover off and check the cam timming, just put the bottom crank pulley on TDC and see if the cams line up with their marks .

Like Duncan said even cil head is a big job on a GTR, its very hard to pull off on the car, you are almost better of taking the engine out to do it .

blind_elk Grand Master

blind_elk

Posted
Posted

Ordinarily, bent valves would give 0 compression (I've seen an engine that had zero compression in 1 cylinder because the tappet was too tight on the top of the valve; set tappet clearance -> 180 psi compression!).

I've also seen an engine that stripped the teeth off the belt so the cam didn't turn, and none of the valves came into contact with a piston!

If the cams are turning, then the engine is cranking.

First thing is to get a leakdown test. Next would be to pull the head (it's going to have to be done anyway, even if it's a blown head gasket). If it IS valves, they can be repaired and the head replaced. If not, you can still pull the engine out for either a rebuild or a replacement.

frankxinyu Mentor

frankxinyu

Posted
Posted

sorry to be random, but just out of curiosity, whats the reading of the compression test when the motor is new? i did mine last month and got something like 165 for every cylinder, is that good or not?

again sorry for being off topic, and good luck with the car!

wrxhoon Grand Master

wrxhoon

Posted
Posted
sorry to be random, but just out of curiosity, whats the reading of the compression test when the motor is new? i did mine last month and got something like 165 for every cylinder, is that good or not?

again sorry for being off topic, and good luck with the car!

165 is about right but it depends on the gauge the battery( how quick its spinning the engine)and how it was done, like WOT and engine in normal operating temp.

If all cil have the same comp thats a good indication of a healthy engine .

When the engine gets older if the top end ( valves ) is in good nick and totaly seals then compression would be higher that when it was new, because of carbon built up .

KILL HSV Proficient

KILL HSV

Posted
  • Author
Posted (edited)

pretty sure it wasn't blowing blue smoke, or any smoke that i noticed.

the only things i noticed when it happened was that i lost power straight away, and was driving as if a cooler pipe was off but without the black smoke. so i initailly thought it could have been a turbo because of the lack of power but i'd say not. the the car died about a km up the road.

the other thing i noticed was that when i tried to accelerate, the engine made a loud ticking sound which got louder the more throttle you gave it. thats why i thought it could have been the valves.

i would love to do the rb30 thing but i really just can't afford this car anymore as it's draining all my money

i think i will get my mate to do a leakdown test, but with all that work involved just to get the head off, i think the end is nigh for the gtr. i'l probably end up selling it as is for a lot less.

Edited by KILL HSV
wrxhoon Grand Master

wrxhoon

Posted
Posted
pretty sure it wasn't blowing blue smoke, or any smoke that i noticed.

the only things i noticed when it happened was that i lost power straight away, and was driving as if a cooler pipe was off but without the black smoke. so i initailly thought it could have been a turbo because of the lack of power but i'd say not. the the car died about a km up the road.

the other thing i noticed was that when i tried to accelerate, the engine made a loud ticking sound which got louder the more throttle you gave it. thats why i thought it could have been the valves.

i would love to do the rb30 thing but i really just can't afford this car anymore as it's draining all my money

i think i will get my mate to do a leakdown test, but with all that work involved just to get the head off, i think the end is nigh for the gtr. i'l probably end up selling it as is for a lot less.

Sorry to hear, but by what you said i wouldnt think it will be a blown h/gasket but could very well be stripped timming belt, especialy if you dont have lots of blowby .

Easy to caheck on the timing belt , just take off the top cover and put the harmonic balancer on TDC then check to see if the camgears line up with their marks.

  • 3 weeks later...
KILL HSV Proficient

KILL HSV

Posted
  • Author
Posted

ok an update on the car, i haven't sold it yet and i was having another look in the engine bay and i found that an intercooler hose clamp was really loose.

could this have any effect on the compression?

also they did do a leak down test and it seems there is definitely head gasket damage, as cylinder 1 is leaking into no. 2

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • TurboTapin
      boost source Size Garrett gt28 gen2

      By TurboTapin · Posted

      You just need to remove the compressor housing, not the entire turbo. I would not be drilling and tapping anything with the housing still on anyways. 
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      So, I put my boat on a boat. First of all, I'm going to come out and say it. Why is Tasmania not considered a holy goal, an apex that all road-legal modified cars go to, to experience? This place is an absolute wonderland of titanic proportions. If people are already getting club runs for once in a lifetime 30 person cruises to Tassy then I've never seemed to see it. It is like someone replaced the entire place with an idyllic wonderland for cars, and all of the people living there with paid actors who are kind, humble, and friendly. Dear god. After doing a lap of almost all of the place I've found that it's a great way to find out all of the little things that the car isn't doing quite right and a great way to figure it all out. All in all, I drove for 4 hours a day for a week and nothing broke. I didn't even need to open the engine bay. This is by all means a great success, but it has left me with a list of things to potentially address. I also now have a 3D printed wheel fitment tool which annoyingly hasn't got any threads in it to actually assemble it. I might be able to tape it together to check the sizing I actually want to use, but it'll likely involving pulling the shocks out to properly measure travel at least at the front, and probably raise the car while I'm at it, at least in the rear. I scraped on quite a few things and I'm not sure how else to go about it. I was taking anything with a bump at what felt like 89 degree angles. And address those 10 other tasks. And wash the car. God damn it is dirty. And somehow, the weather was perfect the entire time - And because I was on the top of Mt Wellington it turns out it was very much about to freeze up there. I did something I typically never do and took some photos up there in what must have been -10 and the foggy felt like suspended ice, rather than mere fog. If you own a car in Australia, you owe it to yourself to do it.
    • QB6SAGR
      Battle of the broken skylines

      By QB6SAGR · Posted

      Damn that was hilarious, and a bit embarrassing for skylines in general 😂 vintage car life ey. That R33 really stomped. Pretty entertaining stuff
    • cosline
      R32 gtr transmission strength, billet plate

      By cosline · Posted

      Hi, I have a r32 gtr transmission. Does any of you guys have an idea how much power it will hold with the billet center plate and stock gearset? At what power level and use did yours brake with or without billet plate? Thanks, Oystein Lovik
    • Rezz
      Spotted on the street....

      By Rezz · Posted

      Saw this replica police car based on a Mitsubishi Starion XX parked next to a 'police box' (it's literally a box) in Hirohata, Himeji City in Hyogo prefecture the other day. It's owned by Morii-san who is a local Mitsubishi Starion enthusiast. According to a local radio station blog post, he always wanted to make a police car himself based on ones he saw in his favourite Manga comics.  As it's illegal to modify a car to look like a police car and drive on the road, Morii-san tried many times to get permission from Aboshi police station headquarters nearby. They refused initially by after they got tired of that they granted him permission. However, the car can only be displayed on private property and obviously can't be registered as long as the police livery is present. The car was completed at a cost of 1.5 million yen (US$ 10,000) in addition to the car cost. A location was chosen outside Hirohata Police box where the car can easily been seen from the street. Morii-san has two other Starion road cars, both widebody GSR-VRs.
×
×
  • Create New...