arnott1t
SILVER Star
So here is the deal:
Hzj47 with a gturbo. The gturbo was bought years ago originally intended for a 13bt. It sat on behemoth 60 shelf for quite some time. I eventually bought it from him for use on my 1hz after consultation with Graeme. I'm not at all looking at Graeme as at fault or anything here or behemoth or anyone except maybe me...
Anyway... I swapped a 1hz into a troopy and recently got it going and driving. Love the truck and love the turbo.
Turbo is fed via -3 line right from pressure sender on left side Of engine. Drain is tapped into block and is -6 or -8. It's only. 4" long and goes straight down and in.
I'm running an hdt cross over pipe.
Exhaust is 3" down pipe about 24" long.
Intake is a 3" cone filter right of the turbo. Well there is an elbow and 6" riser to the filter.
Since install I noticed some oil out the tailpipe on occasion. Doesn't happen every time. Only sometimes and it usually quits but when it was first doing it a steady drip was visible.
Other than that turbo was happily boosting to 12psi and making the truck a ton of fun. I couldn't leave it alone though and wanted to turn up the boost to 18psi so I started shimming the easy gate. This is what I was fiddling with tonight. Prior to this egt was 1000-1200 on hard pushes. I'd back out at 1200. My probe was in a s***ty spot so I moved it and saw better temps. Not so much hotter but faster moving. Now it is in the typical spot in hdts.
First go round I added too many washers and the turbo was climbing up to 25 psi at wot. It did this maybe twice. Back to the garage and removed some shims. Next trip out boost was sloppy. Crisp to 14psi and then would lazily climb to 17 or so. Back to the garage add another shim back. Bingo!
18 psi crisp and a little creep up to 20 at wot and high rpm.
After doing a run up a hill boosting 18 I stop to make a turn and notice significant smoke. Hmmmmm. Limp home and smoke isn't as obvious. Breather tube is open to atmosphere and is puffing like it has been since I've had the engine. Nothing excessive I'd say.... Egt never above 1200. Had a hard time making 1100.
Pull intake and feel compressor. Spins freely but not as freely as it was before. Has zero axial play. Has major radial play like in excess of a 1mm. I can move it to the point it feels like it may be hitting the housing. I compare this play to another stocker hdt turbo I have kicking around. Much more than this 'spare' and this is a used in rough shape turbo.
So what did I do?
Pics...
Thoughts? What's next? Can't drive it I guess? Sad since it is our
Cruiser club meeting tomorrow and this has been a year in the making...
Am I just a worry wart? No odd noises or screeches but the play is troubling?
Look forward to your feedback.
Hzj47 with a gturbo. The gturbo was bought years ago originally intended for a 13bt. It sat on behemoth 60 shelf for quite some time. I eventually bought it from him for use on my 1hz after consultation with Graeme. I'm not at all looking at Graeme as at fault or anything here or behemoth or anyone except maybe me...
Anyway... I swapped a 1hz into a troopy and recently got it going and driving. Love the truck and love the turbo.
Turbo is fed via -3 line right from pressure sender on left side Of engine. Drain is tapped into block and is -6 or -8. It's only. 4" long and goes straight down and in.
I'm running an hdt cross over pipe.
Exhaust is 3" down pipe about 24" long.
Intake is a 3" cone filter right of the turbo. Well there is an elbow and 6" riser to the filter.
Since install I noticed some oil out the tailpipe on occasion. Doesn't happen every time. Only sometimes and it usually quits but when it was first doing it a steady drip was visible.
Other than that turbo was happily boosting to 12psi and making the truck a ton of fun. I couldn't leave it alone though and wanted to turn up the boost to 18psi so I started shimming the easy gate. This is what I was fiddling with tonight. Prior to this egt was 1000-1200 on hard pushes. I'd back out at 1200. My probe was in a s***ty spot so I moved it and saw better temps. Not so much hotter but faster moving. Now it is in the typical spot in hdts.
First go round I added too many washers and the turbo was climbing up to 25 psi at wot. It did this maybe twice. Back to the garage and removed some shims. Next trip out boost was sloppy. Crisp to 14psi and then would lazily climb to 17 or so. Back to the garage add another shim back. Bingo!
18 psi crisp and a little creep up to 20 at wot and high rpm.
After doing a run up a hill boosting 18 I stop to make a turn and notice significant smoke. Hmmmmm. Limp home and smoke isn't as obvious. Breather tube is open to atmosphere and is puffing like it has been since I've had the engine. Nothing excessive I'd say.... Egt never above 1200. Had a hard time making 1100.
Pull intake and feel compressor. Spins freely but not as freely as it was before. Has zero axial play. Has major radial play like in excess of a 1mm. I can move it to the point it feels like it may be hitting the housing. I compare this play to another stocker hdt turbo I have kicking around. Much more than this 'spare' and this is a used in rough shape turbo.
So what did I do?
Pics...
Thoughts? What's next? Can't drive it I guess? Sad since it is our
Cruiser club meeting tomorrow and this has been a year in the making...
Am I just a worry wart? No odd noises or screeches but the play is troubling?
Look forward to your feedback.
Last edited: