Possible fix to sticky lifters?

[Gradenko]

Have a read of this: http://board.performanceforums.com/forums/...readid=67154027

Its a guide to cleaning hydraulic lifters on 4G63's to get rid of that annoying ticking. Is there anyone here familiar with RB25 lifters that knows if the same technique can work for us?

[Sumo]

With my old 202 to get rid of the noise all I did was put a good quality oil in it. Fixed it after about 200kms on the fresh oil.

Cheers

Sumo

[nismoman18]

i just put some proform engine stuff in it, knock dissappeared instantly

[Busky2k]

I suggest running an engine flush to help dissolve any sludge in the valve train, and running xxW-30 oil ...

However I thought the RB engines dont use lifters because it is a bucket and shim style valvetrain (unlike the SR20). So the ticking might be coming from something else.. not 100% sure tho on this.

[Gradenko]

Sumo, I've been through a half-dozen changes of Mobil 1 (5w-50) since the ticking started and recently moved to BP Visco 5000 (5W-40), and had no change.

nismoman18, got a url for this stuff?

Busky2k, an engine oil flush was what originally brought the ticking on. At first, it was only lightly ticking when cold, but its progressed to very loud ticking whether hot or cold. I guess whatever got dislodged during the flush travelled through the oil system and got stuck in the lifters. Your the second person to recommend trying 0w-30 weight oil, so I may give that a go.

The RB26 doesn't use hydraulic lifters but the RB25 definitely uses them, same as the RB20 (I think).

[nismoman18]

man just go to supercheap auto its usually $10 but i got it sale $6 and it was the last bottle there, luckily. its advertised in hot 4's all the time. i suggest you dont go the 0w ive recently put that in and thats really when the knock developed, im gonna go back to 5w-40