Motor rebuild for 92TY#73
- Thread starter TYTILIDIE
- Start date
TYTILIDIE
METH HEAD
Re: Motor rebuild for 92TY#73
Got a little bit more done today (and the last few days). Cleaned the frame up, scuffed the hell out of the firewall. Also, took the heater box down to bare metal and re-painted it. Here are some pics of the progress.
Here is where I had 7
lol holes drilled for various wiring/vacuum lines. I know it looks kind of crude now but I will clean it up tonight and smooth it out and re-paint it.
Here is one that has me thinking, see the green corroded area? Top right on the fuse box middle pin, anyone know for sure what that goes to? I am wondering if it had anything to do with the weird issue I would have intermittently. Truck would act crazy, factory boost gauge would fluctuate at idle, truck was sluggish, just some weird things. Anyway, just wondering what this may go to.
So that's it for now, haven't heard back from the machine shop on my motor yet but will call Monday and see what the deal is.
Got a little bit more done today (and the last few days). Cleaned the frame up, scuffed the hell out of the firewall. Also, took the heater box down to bare metal and re-painted it. Here are some pics of the progress.
Here is where I had 7
lol holes drilled for various wiring/vacuum lines. I know it looks kind of crude now but I will clean it up tonight and smooth it out and re-paint it. 
Here is one that has me thinking, see the green corroded area? Top right on the fuse box middle pin, anyone know for sure what that goes to? I am wondering if it had anything to do with the weird issue I would have intermittently. Truck would act crazy, factory boost gauge would fluctuate at idle, truck was sluggish, just some weird things. Anyway, just wondering what this may go to.
So that's it for now, haven't heard back from the machine shop on my motor yet but will call Monday and see what the deal is.
Don W.
Stab it and steer it
Re: Motor rebuild for 92TY#73
Mike,
I'm looking at my Elec diagram book from GM (ALL my other books including the SyTy supplement are at the shop with my Sy, sorry) but anyway it looks like that circuit might, repeat might, have something to do with ECM.
It's circuit # 120 if someone has there the Sy supplement. I show a jumper between that corroded connection and the connection that is 4th from the bottom left in the picture. See if you show continuity between those two in the loom you removed?
Don't know if that helps. Let me know if you want me to try to research this further.
Yur brave pullin' it down this far. Either way I'd clean teh heck out of all those conections.
Mike,
I'm looking at my Elec diagram book from GM (ALL my other books including the SyTy supplement are at the shop with my Sy, sorry) but anyway it looks like that circuit might, repeat might, have something to do with ECM.
It's circuit # 120 if someone has there the Sy supplement. I show a jumper between that corroded connection and the connection that is 4th from the bottom left in the picture. See if you show continuity between those two in the loom you removed?
Don't know if that helps. Let me know if you want me to try to research this further.
Yur brave pullin' it down this far. Either way I'd clean teh heck out of all those conections.
Don W.
Stab it and steer it
Re: Motor rebuild for 92TY#73
Well I guess I didn't do much good eh? :rotf: I wuz trying to go by the wireing diagrams that cover ALL S/T trucks. Like I said my SyTy specific stuff is at the shop. If it's wires to the rear you'll have follow them. Fuel pump and guage, stop, tail R&L turn, and backup lamps to start.
Well I guess I didn't do much good eh? :rotf: I wuz trying to go by the wireing diagrams that cover ALL S/T trucks. Like I said my SyTy specific stuff is at the shop. If it's wires to the rear you'll have follow them. Fuel pump and guage, stop, tail R&L turn, and backup lamps to start.
TYTILIDIE
METH HEAD
Re: Motor rebuild for 92TY#73
Whats odd (and I still haven't followed them) is that there are only 3 wires in this bunch and it is the only group of wires going back there. Once I get done working on my trailer and riding mower I am going to get under there and see what they are.
As far painting the frame and firewall goes, my friend flaked out on me and I used Rustoleum and high temp engine paint where the Dp goes. I'm also contemplating a wire tuck now:rotf: I'm sure that will be a real wrist slasher.
Whats odd (and I still haven't followed them) is that there are only 3 wires in this bunch and it is the only group of wires going back there. Once I get done working on my trailer and riding mower I am going to get under there and see what they are.
As far painting the frame and firewall goes, my friend flaked out on me and I used Rustoleum and high temp engine paint where the Dp goes. I'm also contemplating a wire tuck now:rotf: I'm sure that will be a real wrist slasher.
TYTILIDIE
METH HEAD
Re: Motor rebuild for 92TY#73
Well after a few days I finally got the core support hacked up the way I want it.
Im sure it doesn't look much different than stock to some but trust me, there is waaay more room here. And it is far simpler. I am going to take some more off of the bottom of the head light buckets for more access and to make it look better. I found the piece of metal I used in the backyard. Who ever lived here before me had a bird feeder on top of it. I just cleaned it up, cut and welded it in. I should be totally done with it by the end of the weekend. Paint and all. When I started, it weighed 23lbs (already hacked up somewhat for FMIC) it now weighs in at 18 lbs and doesn't flex at all. By hand anyway, it is very sturdy.
Well after a few days I finally got the core support hacked up the way I want it.
Im sure it doesn't look much different than stock to some but trust me, there is waaay more room here. And it is far simpler. I am going to take some more off of the bottom of the head light buckets for more access and to make it look better. I found the piece of metal I used in the backyard. Who ever lived here before me had a bird feeder on top of it. I just cleaned it up, cut and welded it in. I should be totally done with it by the end of the weekend. Paint and all. When I started, it weighed 23lbs (already hacked up somewhat for FMIC) it now weighs in at 18 lbs and doesn't flex at all. By hand anyway, it is very sturdy.
Don W.
Stab it and steer it
Re: Motor rebuild for 92TY#73
X2
What you want to avoid is a way for air to recurculate back to the front of the rad from inside the engine compartment. You don't want "hot" air that has already gone through the rad once finding its way back to the rad causing heating issues.
X2
What you want to avoid is a way for air to recurculate back to the front of the rad from inside the engine compartment. You don't want "hot" air that has already gone through the rad once finding its way back to the rad causing heating issues.
TYTILIDIE
METH HEAD
Re: Motor rebuild for 92TY#73
Making slow progress but at least I am making some right? A little update on the motor situation, had to get all new pistons. Going with the .40 over JE's. I am not sure when everything will be done or when I will have everything back but as of now, I am thinking I should have everything back from the machine shop by the end of October. The only thing I have really worked on is the core support. I have spent a lot of time on it and been very patient in "putting it together", so try not laugh:lol:
Here it is from the front
And from the back
I had about 3 holes drilled for hood pins (all mistakes:roll and I welded wheel studs in place, cut them off and ground them down. I think they came out pretty good
This is where I had several holes drilled for things like relays and what not, just welded steel over them
Well, that's it for now. I just got a master cylinder for my hydraboost and will be putting that together next. And if anyone is wondering if the core support is now flimsy?? Far from, it is sturdy as all hell. I also made everything to where the IC and Efan will now bolt up smoothly to where as before it was a hacked up mess.
Making slow progress but at least I am making some right? A little update on the motor situation, had to get all new pistons. Going with the .40 over JE's. I am not sure when everything will be done or when I will have everything back but as of now, I am thinking I should have everything back from the machine shop by the end of October. The only thing I have really worked on is the core support. I have spent a lot of time on it and been very patient in "putting it together", so try not laugh:lol:
Here it is from the front
And from the back
I had about 3 holes drilled for hood pins (all mistakes:roll
and I welded wheel studs in place, cut them off and ground them down. I think they came out pretty good
This is where I had several holes drilled for things like relays and what not, just welded steel over them
Well, that's it for now. I just got a master cylinder for my hydraboost and will be putting that together next. And if anyone is wondering if the core support is now flimsy?? Far from, it is sturdy as all hell. I also made everything to where the IC and Efan will now bolt up smoothly to where as before it was a hacked up mess.
SY2455
70's Veteran
Re: Motor rebuild for 92TY#73
With all the newer cams out there. Why the Kenne Bell cam if you mind me asking?
With all the newer cams out there. Why the Kenne Bell cam if you mind me asking?
TYTILIDIE
METH HEAD
Re: Motor rebuild for 92TY#73
Its what came with the motor. If I replace the cam, I may as well say the whole deal was for nothing. Why spend 1k on a motor and replace everything in it. Besides, the original owner went 11.8, or 9 with it. And that was with the KB chip, so I am sure I can get better than that with a good tune and a slightly larger turbo. I guess if it works, why not?:dunno:
Its what came with the motor. If I replace the cam, I may as well say the whole deal was for nothing. Why spend 1k on a motor and replace everything in it. Besides, the original owner went 11.8, or 9 with it. And that was with the KB chip, so I am sure I can get better than that with a good tune and a slightly larger turbo. I guess if it works, why not?:dunno:
TYTILIDIE
METH HEAD
Re: Motor rebuild for 92TY#73
I'm glad you are enjoying it so far. I haven't actually used that drive shaft, I am still on hte stocker. I am actually quite amazed mine hasn't exploded yet, I know one guy who's took a dump on him and wiped out his tranny at 85k. For some reason, mine has 212k on it and never had a problem. I have had the u-joints re-done twice and get it checked every two years but other than that, no problems.
I'm glad you are enjoying it so far. I haven't actually used that drive shaft, I am still on hte stocker. I am actually quite amazed mine hasn't exploded yet, I know one guy who's took a dump on him and wiped out his tranny at 85k. For some reason, mine has 212k on it and never had a problem. I have had the u-joints re-done twice and get it checked every two years but other than that, no problems.
SY2455
70's Veteran
Re: Motor rebuild for 92TY#73
OK, I miss the post about you buying the engine. This I know for sure, with your tuning on it, it will go faster. I find it amazing that the original owner went that fast without blowing it up with the Kenny Bell stuff. The only ones that I know of that stay together were the Jim Stokes engines that were (sub thru KB).:tup:
OK, I miss the post about you buying the engine. This I know for sure, with your tuning on it, it will go faster. I find it amazing that the original owner went that fast without blowing it up with the Kenny Bell stuff. The only ones that I know of that stay together were the Jim Stokes engines that were (sub thru KB).:tup:
TYTILIDIE
METH HEAD
Re: Motor rebuild for 92TY#73
He did run race gas most or all of the time I believe. I will not be running race gas but will run alky. I will even be setting up an alternate tune for 85 and hydrogen injection. I'm not sure where the hydrogen injection will go but supposedly I can double the e85 mileage with it. It doesn't cost me much do it so I figure, what the hell.
He did run race gas most or all of the time I believe. I will not be running race gas but will run alky. I will even be setting up an alternate tune for 85 and hydrogen injection. I'm not sure where the hydrogen injection will go but supposedly I can double the e85 mileage with it. It doesn't cost me much do it so I figure, what the hell.
Ry368
one mile = 5280 feet
Re: Motor rebuild for 92TY#73
The vortec heads don't do much past .500 lift anyways......if Mike was doing some nicely ported aluminum heads that were flowing close to 280-300cfm I'd say do a larger cam, but I think the vortecs he's using for this build will do fine with the kb cam.
Blowing up? How would a motor blow up from a kb cam...it's just an early style comp cam. The og kb cam has .470 lift with 1.6 rockers and sounds more stock then my old old old og crane compu cam with less lift compared to the kb cam that's currently in my latest Sy.....and the 5000 plus rpm power band was really nice, but I'm sure they're bigger/better cams from comp these days. I payed $400 for the cam and springs waaay back in the day from kennebell.........what do the newer style comp cams cost these days?
The vortec heads don't do much past .500 lift anyways......if Mike was doing some nicely ported aluminum heads that were flowing close to 280-300cfm I'd say do a larger cam, but I think the vortecs he's using for this build will do fine with the kb cam.
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TYTILIDIE
METH HEAD
Re: Motor rebuild for 92TY#73
A little more progress this evening. First off, had a friend make a backing plate for the hydra boost. Went out and matched up some brake lines and got some new bolts for everything on the brake system.
I decided to mount the external starter solenoid on the heater box.
Here is the hydraboost set up dummied together
Its coming along. Can't wait to get my motor back!!!
A little more progress this evening. First off, had a friend make a backing plate for the hydra boost. Went out and matched up some brake lines and got some new bolts for everything on the brake system.
I decided to mount the external starter solenoid on the heater box.
Here is the hydraboost set up dummied together
Its coming along. Can't wait to get my motor back!!!