[eddie558]

Right for some reason when I reach 3000rpm in any gear I've got a knock on the front of the engine, oil is new and fine can runs great only problem is the small knock any ideas?

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[littlerhino]

Crank shaft pulley ?

 

[anthonymcgrath]

is it a knock that stays with the rpm as it increases? Does it do whether your tickling the throttle or wide open?

 

[eddie558]

Seems only to happen at 3000rpm no matter what gear I'm in, it gos away after 3500 rpm

 

[anthonymcgrath]

Seems only to happen at 3000rpm no matter what gear I'm in, it gos away after 3500 rpm

you sure its not tension rods on the way out or something? can you describe the knocking? Like a "thud thud thud" up to 3500rpm or just one knock that goes away ?

 

[eddie558]

It's changed now to a knick from start up and rev, the engine temp and oil pressure are fine I've no smoke, it's a loud knock sounds like a ticking

 

[anthonymcgrath]

i'd be reluctant to drive it personally till i found the issue - can you not locate roughly where the sound is coming from? A video via phone would speak a 1000 words tbh :/

 

[eddie558]

Will get one done tomorrow for you bud

 

[eddie558]

The video will be on you tube very soon look for
Skyline owners rb25det engine knock. The front of the car is green so you know your on the correct. Video

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[eddie558]

The video is now available on you tube, it's under
Skyline owners rb25det engine knock

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[anthonymcgrath]

cant find it - please just supply a link!

 

[eddie558]

Can't put link up as on phone, just enter skyline owners rb25det engine knock

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[eddie558]

If helps it's under the name dave edwards

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[anthonymcgrath]

i did a search for the following "skyline owners rb25det engine knock" and filtered it to vids in the last week it gave me nothing

 

[eddie558]

http://youtu.be/Pu1GWdNUsiU

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[eddie558]

Hope this works,

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[anthonymcgrath]

ooof you weren't kiddding - that sounds pretty hefty but i have heard noisy lifters sound like that in the past - my own in fact on my last engine. I changed the oil and it was fine.

another thing to check is your timing too just to be safe

i remember having to take my own cylinder head off and infact finding i had two bent inlet valves... however i'm not saying this is the issue here.

i think something can be done with the lifters but i cant remember i'm afraid - someone like speedreeper would be able to diagnose this i'll pm him and send him the link to this thread..

 

[anthonymcgrath]

Hope this works,

it did :cheers:

 

[eddie558]

Ok cool thank you, question could it be the big end? someone on fb said it could be that, but my oil and temp gage on the dash are perfect

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[anthonymcgrath]

this is a vid of Dazza's car a while back... the engine went from a small knock to this... you can hear it get steadily worse...

https://www.youtube.com/watch?v=aFwwrf0pDLY

coupla smart alecs saying why didn't you pull over and turn it off - well actually we would have done a junction back if the road weren't closed and we were unable to get off the mway so we had to drive it to this spot.
It was actually a spun bearing that made this noise?

your video doesn't sound as bassy or as violent as this - i would hazard a guess noisy lifters tbh