Jump to content
SAU Community

Recommended Posts

 

So car started fine yesterday, didn't drive it today. Started it up to go throw some fuel in and was welcomed with this banging noise like someone had thrown a brick into a dryer.

Any suggestions from the video attachment??

 

Engine Noise.mp4

Edited by BstewyR33
attachement didnt attach
Link to comment
https://www.sau.com.au/forums/topic/471538-bad-engine-noise/
Share on other sites

sorry mate but you've spun a bearing, probably big end.  If you give it a little rev does it get worse (best way to confirm if it is big end vs main, but either way the bottom end needs fixing)

what does the oil pressure gauge and/or light say when it's running? Do you still have any oil pressure? What were you doing last time it didn't make the noise?

also, if you intend to rebuild it rather than replace it, every single revolution does more damage and increases cost to rebuild...

if you are feeling optimistic you could take all the drive belts off (water pump/fan/alternator, power steer, aircon) and start it briefly and see if the noise is still there, but the video is pretty distinctive.... :( 

Awww shite... Thanks man. Can't complain for a 22 yr old engine which hasn't had any work done to it and lasted. 

The noise did increase with revs, Oil pressure has remained the same - didn't see any drops in the gauge while driving, never had any lights come on to indicate otherwise. Have noticed a slight belt squeal lately on start up, not sure which belt though 

Is it a costly rebuild?

Edited by BstewyR33
Added text
  • 3 weeks later...

You could ask if anyone here has a book with torque specs and how to rebuild a rb25det.. 

That way you can drop a new bottom end in your car and keep your old engine and slowly rebuild it yourself. 

Could be fun if you into that stuff.

a bit of an update - had a mobile mechanic out to have a listen and look & he suggested it could be some dirty lifters as the noise wasn't down low on the block. Threw some nulon lifter free & tune up in and the sound went away, a band-aid solution - will have to get around to do a overhaul on the engine at some point.

Not really dodgey at all and a good cheap outcome. Seems like it was just a sticky/noisy lifter. If the problem re occurs, (probably won't if you keep the oil in good conditon) just replace the lifters or isolate the offending lifter and replace that only. I recently spoke to a bloke that had this occur and he ran some engine flush through the engine and changed the oil and 3 years later noise never returned. 

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

    • I can ship Nismo floor mats to you: https://www.oemsoko.co.jp/products/nismo-floor-mats-for-skyline-r33-bcnr33-stagea-wgnc34?_pos=1&_sid=9278c1467&_ss=r  
    • Here's the link: https://www.amayama.com/en/genuine-catalogs/epc/nissan-japan/stagea/wgnc34/6642/misc/G49?frame_no=WGNC34-137122 What you think about it? The same product i found on nengun: https://www.nengun.com/oem/parts/40567/MiPwn5qAMfCfmpxHNDnwn5q9MDAx8J-QiW9sZC1qcC0xMTAtRzQ5LS0wMDE/Floor+Carpet+%2F+Mat+2/0688339eba149c19 Bot i have spoken to 😅 ensured me, that mats are 100% original, oem product. I have my doubts. I also heard what you mentioned, that nengun often offers items that are actual not available... On the other hand mats i found on japanese yahoo or ebay are in poor condition and still quite expensive so i'd rather wait for some better offers. My location - Poland. We literaly don't have ANY market for used Stagea parts so need to search outside Europe.
    • You can’t see much on the other side as the lcd is there I don’t think it’s the same as the m33 beside it as the markings on top is not the same was hoping someone had a good quality photo or if they just happened to have the unit in hand, quickly take the cover off and take a photo to clearly show the marking on top to identify the diode   the unit is currently with an electronics repair shop so I can’t take another photo at the moment hopefully they are smart enough to know if it’s a zener diode or not
    • I'd be very surprised if you can buy new OEM mats. But if you can, I want some too!  Do you have links to the variations you found? Also, where are you located? I found that Nengun is happy to list items to purchase but when you do buy them you'll get an email that it's actually discontinued. As far as I know the variations in floor mats are different colour schemes as well as automatic and manual having a slightly different shape. The automatic ones fit into a manual car without issues, but I think you'd have trouble fitting the other way around. I have photos that show the shape difference if you care. FWIW I bought sets of used floor mats in decent condition at yahoo auctions.
    • Hi 🙋‍♂️. Just bought my Unicorn but the interior need some minor work so it would match my expectations ;). I noticed it is hard to get used oem floor mats in good condition so i started to dig if there's any chance to buy set of new ones. I found two websites - nengun and amayama and it looks like one can still buy factory new floor mats in Japan, but thers a small issue. Some mats (i assume genuine, oem ones) are marked as G4900 and these are "discontinued". The ones you can buy are marked as G4911 but i have no idea if these are also oem, made by other producer or some lower quality replacements that looks entirely different. Can anyone help? 😃  P.s. there is also some strange indication - 0V005, 0V015 and 0V505. Any idea what does it mean? Would appreciate any help with this 🙏
×
×
  • Create New...