Saturday, December 13, 2008 - 12:46 pm, by: Aftab Zahoor(Aafi)
Hey guys I just got my 1J turbos repaired by GCG they have asked me to replace the oil feed pipe line with the new one which is like really a pain to get. I went to this Toyota showroom and no luck but the guy there told me that I do not need to change it until its not leaking and my one is not leaking. The Mechanic says that I have to confirm this with GCG any ideas do I really need to change it if its not leaking? Thanks
Scott Wilkes TryHard Tasmania 92 TT Factory Manual
Saturday, December 13, 2008 - 02:37 pm, by: Scott Wilkes(Scottywilkes)
take the pipes to a place that can thoroughly clean the pipes out. Basically over time you get carbon build up on the inside of the pipe which slowly restricts oil flow to your bearings and slowly kills them. Get them proffesionally cleaned out and you should be ok.
Saturday, December 13, 2008 - 05:19 pm, by: Scott Wilkes(Scottywilkes)
you want something to push up through the pipes to clean them out. The carbon forms into a very HARD and solid mass, and is very hard to remove. Petrol will remove some of it, but it wont remove it all.
If you have ever rebuilt a motor or felt a used piston head, the carbon is shocking to remove.
Personally if you can find new pipes i would go that option, but if you cannot find them, get them properly cleaned out. 50 bucks could save a set of 3K turbos
Saturday, December 13, 2008 - 10:54 pm, by: Barry Main(Barry_m)
The guy from GCG is 100% correct.
New oil feed pipes EVERY TIME YOU REBUILD YOUR TURBOS.
If you feel you can't make them up out of stainless braided and the right fittings, there is an electronic parts catalogue somewhere in this forum and you might be able to get the right part numbers from that.
Here's the problem. At full noise, your turbos run at around 1,000 degrees, and your oil is meant to run at around 90 degrees. The oil goes through the turbos to provide cooling but in so doing gets damaged by the heat. This leaves a very fine residue throughout the engine but in the case of the oil feeds, it reduces the size by a significant amount due to the fact that it is adding layer after layer of this burnt gunk around the full 360 degrees.
Sunday, December 14, 2008 - 08:11 am, by: Vinny Ozorio(Fruitloop)
Aftab.....as Scott and Barry have said its damm hard to remove..The best way that I have found is remove both the supply and return line and fill them with "Paint-Stripper" and leave for a hour..then flush out with any solvent based solution then Blow dry with Air..same as doing Expansion chambers on two-stroke engines..
Don Bagnall Moderator New Zealand Mercedes Benz SLK230 Kompressor
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its better to get it professionally done because I cant find the new one in any store. Thanks a lot for your help
