Jump to content
SAU Community

Recommended Posts

If I pull the head off what would I be looking for? Like detonation and symptoms? Cheers, also it's hit adjustable cam gears etc, can these parts be salvaged for another rb?

um...when you say its hit adjustable cam gears....what are you meaning?

Given cylinder 5 has 0 comp and 4 has only 15psi there is no way on this side on gods good green earth you will be putting those pistons backin with just new rings, if your lucky you will be able to bore out the damage at 40thuo either way at best you will be up for over sized pistons rings HG etc etc, and really why would build a motor and not pay the extra for forged items, suddenly $1500-$2000 for a good condition motor will be cheaper and then can be resold once forged motor built

My last 32 motor had 30psi in cylinder 5 and there was 1cm of the ringlands just gone and a scratch on the bore that wouldn't come out, my guess to get 0psi then he has had the piston and valve come together

Also the fact that he asked if the cam gears can be reused is a sign he is a complete nooob, so another reason why a rebuild would be a bad option.

Noob to skyline scene, yes kind of, I have previously owned a na r31,

I'm not really interested in doing any machine work to this engine at the moment as cash is tight, thinking I'm just going to drop in a wrecker for now aslong as I can find a decent one, as for a rebuild I was wondering iffy adjustable cam gears could be damaged at all from the engines current issues? Yes I'm a noob but I have worked on a lot of cars and as it's a daily drifter one day dedicated, I've been looking into building a 25/30, if my top end just needs a rebuild. But all with time to come, I'll get some pic's up as soon as I can. All the suspensions set up already it's just the engine left

I had a similar issue years ago and it was a f**ked couple of gaskets. Check for leaks

Do you remover anything specific? A mate has a r33 gtr and reckoned it at popped a couple valve stem seals, if it had could this cause low comp?

Before jumping the gun, pull the head off and take a look, it could just be the head gasket blown between 4 and 5 which would explain little to no compression between 2 adjoining cylinders.

If Head gasket looks OK around the sealing ring, look at the bore, if that looks OK start pulling pistons and inspecting them.

Before jumping the gun, pull the head off and take a look, it could just be the head gasket blown between 4 and 5 which would explain little to no compression between 2 adjoining cylinders.

If Head gasket looks OK around the sealing ring, look at the bore, if that looks OK start pulling pistons and inspecting them.

Ok will do and I'll grab some photo's to report back,

Quick question guys while I was pulling stuff to get the head out I noticed my rocker covers are held down by Phillips head screws? I've done many gasket changes before but never have I seen Phillips head screws used for any particular part of an engine besides clamps etc, are rb's like this standard, I wouldn't imagine so but not 100% sure, I pulled the paper work I got with it and it's say all the bolts where replaced at a shop in seven hills, but why would they use Philips heads instead of 8mm hex heads for the rocker covers?

Quick question guys while I was pulling stuff to get the head out I noticed my rocker covers are held down by Phillips head screws? I've done many gasket changes before but never have I seen Phillips head screws used for any particular part of an engine besides clamps etc, are rb's like this standard, I wouldn't imagine so but not 100% sure, I pulled the paper work I got with it and it's say all the bolts where replaced at a shop in seven hills, but why would they use Philips heads instead of 8mm hex heads for the rocker covers?

  • 1 month later...

Okay guys taken some time but have finally gotten around to pulling the head off today, all the pistons except for 3 look in decent condition, 3 has marks on ether side of the piston but no visible marks to the bore, all the valves seam to be fine haven't pulled them put to inspect yet tho. I'll try post some pics up

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

    • Have a vb in honour of the car comming back
    • It was a great, but typical track day, and some VB was ingested at the night time debrief 🤪
    • And so, to round this out, I couldn't be happier to confirm @MBS206 has decided to buy the car. He drove down from sunny QLD with a trailer last week and it is off to its new home today. I'll let Matt confirm on next steps but I understand broadly that the plan is to leave it pretty much as is, and just get some quality wheel time with a nicely balanced car that is pretty much track ready. There are a few a jobs still to be done first but nothing too major and I think its a very smart buy Dinner last night at the Paragon with a round of VBs (mostly) for Neil
    • Well, 50 pages and the end of a chapter for this car. We took it out for a shakedown at Wakie yesterday, and everything went well. There were a couple of niggles: - Oil cooler fitting leak - tightened, cleaned, stopped leaking - Radiator cap overflow fitting was leaking....Mark called it, the overflow fitting was threaded in and not tight....tightened, tested and held pressure - Small oil leak at the rear of the block, probably the turbo oil feed - too hot to get at it comfortably but probably just needs to be nipped up - leak at the driver's side rear brake line where it meets the hardline. Fitting wasn't loose, so Matt backed it off and back on, no further leaks - there's also a leak somewhere on the top of the fuel tank, maybe that cross over fuel line - that was has been left to fix when its on a hoist Otherwise than those niggles the car went great, turned great and stopped great so it was a very successful day out. I'm always really nervous when a car first hits the track after a long break, especially with a brand new engine as well but it was great. VID-20251011-WA0007.mp4  Big thanks to @The Bogan who dropped by and helped out, @MBS206 and my nephew Lachlan the apprentice.  Neil's wife Mel also surprised the hell out of all of us by dropping by; she's up in Tamworth these days but was travelling to Melbourne so had plausible deniability for turning up at the garage, it was great to see her but also obviously a bit sad all round.
    • Skyline R33 Series 2 sedan tail lights in excellent condition. These are becoming harder to find, especially in this state.    BOTH SETS ARE IN FANTASTIC CONDITION (REFER TO PHOTOS)    ✅ No broken covers or cracks ✅ Lenses are in flawless condition ✅ All rear mounting lugs intact ✅ Comes complete as pictured ✅ Perfect for restoration, replacement, or upgrade   These lights are ready to go, no surprises just quality OEM parts.   These are definitely one of the better sets we have seen in a while. With minimal wear and tear they will come as you see. Bear in mind they are not brand new they are almost 30 years old now. To find them in this condition isn’t easy they can only be obtained on the second hand market.   Australia Wide Postage Available At Buyers Expense. Silver Set:$850 Grey Set:$850 PM Me for purchase or any other questions  IMG_2166.dng IMG_2165.dng IMG_2172.dng IMG_2173.dng IMG_2174.dng IMG_2179.dng IMG_2180.dng IMG_2260.dng IMG_2258.dng IMG_2259.dng IMG_2261.dng IMG_2266.dng IMG_2273.dng IMG_2274.dng IMG_2276.dng
×
×
  • Create New...