4g93 dohc turbo rebuild.
- Thread starter Fugitiv
- Start date
Help Support 4GTuner:
khubner1
Moderator
And that would be?
Ian91
Well-Known Member
Waiting for Evo-gsr to jump in and say the 4g93 is the problem! Haha
evo-gsr
Well-Known Member
the 93t is the beginning of the problem here.
Happy now Ian?
Happy now Ian?
Ian91
Well-Known Member
You complete meevo-gsr said:
HAHAHAHA oh shit, i wrote this out before i re-read the manual, i've obviously hit post accidently. my bad boys.
The problem was trying to find the numbers on conrod bearings and crankshaft main bearings... found the colours on the main bearings and the rods i just smacked in.
Engine turns over well and at the moment, there's no problems... but hey, might aswell leave it open, its a 93, there will probably be some...
Sorry for the fuck up.
The problem was trying to find the numbers on conrod bearings and crankshaft main bearings... found the colours on the main bearings and the rods i just smacked in.
Engine turns over well and at the moment, there's no problems... but hey, might aswell leave it open, its a 93, there will probably be some...
Sorry for the fuck up.
Well,,, i have another drama.
This one has stumped a few mechanics at my workplace now. (possibly because im not relaying the right information)
Basically, i had it running on 3 cylinders...
Has fuel to the rail and spark at each plug.
Checked compression- #4 and #3 had 180psi, #2 had 175psi and #1 had ZERO
Checked again and same results, so i checked again.... same same.
Valve must be stuck open or i blew a hole in a piston somehow when i screwed the timing...
So i pulled the head off again, checked for holes in pistons or valves, nothing... all as good as the day it was made.
Pulled the valve springs out, thought maybe a spring had broken (long shot but im out of ideas) and nothing wrong with them either.
Checked the piston was still connected to the conrod, and its all good, all 4 still pumping like a 14 year old looking at his first porn mag.
aside from the head or block being warped, which i checked with a straight edge and seems fine to my untrained eye... i have no fucking idea what has caused a total loss of pressure in one pot...
Any ideas lads???
This one has stumped a few mechanics at my workplace now. (possibly because im not relaying the right information)
Basically, i had it running on 3 cylinders...
Has fuel to the rail and spark at each plug.
Checked compression- #4 and #3 had 180psi, #2 had 175psi and #1 had ZERO
Checked again and same results, so i checked again.... same same.
Valve must be stuck open or i blew a hole in a piston somehow when i screwed the timing...
So i pulled the head off again, checked for holes in pistons or valves, nothing... all as good as the day it was made.
Pulled the valve springs out, thought maybe a spring had broken (long shot but im out of ideas) and nothing wrong with them either.
Checked the piston was still connected to the conrod, and its all good, all 4 still pumping like a 14 year old looking at his first porn mag.
aside from the head or block being warped, which i checked with a straight edge and seems fine to my untrained eye... i have no fucking idea what has caused a total loss of pressure in one pot...
Any ideas lads???
khubner1
Moderator
Also check the threads in the head are good for the spark plug. And while the head is off pour kero into the intake and exhaust ports if a valve ia leaking itll run out there real quick. Check the head gasket for obvious signs of a leakthrough or break between a water or oil gallery. (Wont be between 2 cylinders or 2 would have been reading low/zero
