Jump to content
SAU Community

Recommended Posts

Not if it is doing it at idle as well. Most like be the tappets. Check your oil level and make sure the engine is topped up. Maybe use a thicker oil and this will keep the tappets quite, although this is only a temporary fix.

rebuild

lol

anyway

i doubt it would be the lifters, as they are usually noisy when the motor is cold, and the noise would happen all the time and especially if you leave it without driving for a few days, and the noise would increase in frequency with revs.

what u have explained does not sound like lifters..

try and different oil, i cant think of what it would be...

btw. i wouldnt use those oil additives/flushes if i were you, they might cause more problems than they solve, ie. they gunk can get cleaned of then all get stuck in chunks somewhere else in the engine.

best to just change the oil a few times with cheap oil.

i doubt it would be the lifters, as they are usually noisy when the motor is cold, and the noise would happen all the time and especially if you leave it without driving for a few days, and the noise would increase in frequency with revs.

Sorry to hijack, but do u get rid of this? Currently using Castrol Magnatec, after changing from a 15W/40 rating, noise goes away after the oil change but comes back again after a couple of days.

Cheers

Hey, 15/40 sounds normal, and you should use an oil of similar rating 10/40 or whatever,

i have found that if it is bad, use cheap oil(magnatec or whatever) for about 500-100kms and then change it for oil you would normally use(synthetic of similar weight) which sort of flushes the system.

so i dont think it is the brand of oil, its just that u have one or more sticky lifters. open the bonnet and you can probably hear which ones are bad..

yeah i have seen the guide ur talking about..too bad its not that easy..

cams would have to come out, but i dont think it would be a bad job. i have replaced the cams in rb25.. not really a difficult job i guess just fidly. u just have to have a torque wrench to make sure u attach them back properly and evenly (the cams can crack in half, my exhaust one did!)

when i started the car afterwars one lifter was SO NOISY like crazy!!! i was scared it would be like that forever!!! it was bloody loud. after a good run it quietened down :D

but then again when we put them back in the head was sitting on the ground, not on the bottom end so it made things easy.

  • 4 months later...

:mad:I've got a lifter problem as well... I think? It started about 6 months ago after a major service! But it is weird, because lifters usually tap when the engine is cold. When I first start my car in the morning (cold) it starts and runs at the high rev warm up mode, while it is warming up I have a smoke and coffee, usually about 10-15mins... no tapping. Then all of a sudden the engine slows down once it is warm and the temperature guage says so.... then tap, tap, tap, tap!!! WTF this goes away after a short drive... whats going on?

Just to clear something up. Lifters don't tap. The rockers do. And as for not doing it unless cold. That is incorrect, if you have a sticky lifter it will cause a tapping noise all the time. Sometimes they unstick once the oil has warmed up.

Thicker oil is not really the best option either. A thinner oil will get rid of a noisy lifter more often than not. It is the gunk built up in the lifter that prevents it from filling with oil properly. The thinner oil allows better flow through the smaller spaces thus allowing the lifter to 'pump' up.

As for products. This is your best option to free up a sticky lifter as it doesn't just brake off chunks of gunk and leave it floating around the engine in it's full size (speaking of which, lifter veins are virtually smaller than any other oil passage in the whole engine to to get stuck in anything other than another lifter would be highly unlikely) The product will break down the sludge or gunk into much smaller pieces and then they travel to the sump and eventually go through the oil filter which picks them up.

My Suggestion:

Run Wynns engine flush for 10 km

Drain ALL old oil. Try to use a clear container so you can examine the old oil. You could even go so far as to strain it through paper towel to locate any impurities so that you can identify them.

Change Oil filter

Refill oil with Synthetic grade oil. Somthing like a 10 or a 15 weight.

If the noise is still there, you may have to try manually cleaning them.

If that doesn't fix it then you'll have to buy new lifters. Assuming that is the problem in the first place. I always recommend getting a professional opinion before replacing anything. Especially when those lifter cost $700-$800 for a set.

Lifters

Shims are only spacers which space the buckets to the followers. They come in all different thicknesses for setting valve clearance instead of hydraulic or adjustable.

They can be found on GTR's.

The GTST's don't have shimable buckets, they have hydraulic lifters.

  • 1 month later...

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

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...