Scott's Turbo build!! (Finally!)
07-23-2013, 12:30 AM
#49
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Three hours of bit banging, hackin-n-crackin' yields bluedouche connectivity on my old *** megasquirt!
nxJ5Bgl.jpgl
Had to build a max232 circuit to convert RS232 to TTL then fight with the damn thing to accept my serial commands to change baud rate, SID, and passcode. Pretty awesome, can't wait to test it out!
Also picked up the HF stethoscope and dug out an old knock sensor. Removed R2 and soldered a 50k ohm pot in place to make sensitivity adjustable. Picked the 50k because there was a 47k there already so an extra 3k+/-20% would be fine. Works pretty well on my test bench, we'll see about in the car. Still waiting on a project case to mount the board along with a new power/volume pot.
nxJ5Bgl.jpgl
Had to build a max232 circuit to convert RS232 to TTL then fight with the damn thing to accept my serial commands to change baud rate, SID, and passcode. Pretty awesome, can't wait to test it out!
Also picked up the HF stethoscope and dug out an old knock sensor. Removed R2 and soldered a 50k ohm pot in place to make sensitivity adjustable. Picked the 50k because there was a 47k there already so an extra 3k+/-20% would be fine. Works pretty well on my test bench, we'll see about in the car. Still waiting on a project case to mount the board along with a new power/volume pot.
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08-02-2013, 08:54 PM
#50
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Well gang, I'm a little bummed out. Not surprised in the least, definitely bummed out.
Will post pictures later, going to tell a quick story and take a shower & head out for the evening. Tore the block completely down and ran over to my brothers where we welded that perfectly round hole shut using a "plug" I cut with a hole saw out of another blown block using nickle rods on an old Lincoln stick welder. After we finished that up I found a huge crack in the block in the other side around the number 1 crank journal, so I drilled the crack ends and jbwelded it up. Ran a ball hone through the cylinders, took a burr to the crank and cleaned up all the sharp edges, power washed everything and stuck the crank in. Measured the main bearings, they all checked out in spec.
At this point I took the rods/pistons from my original car's engine which were in fantastic shape and cleaned them up really well, checked ring gaps and matched them to cylinders then installed pistons. Checked rod bearings out, they were in spec. Checked crank thrust bearing, in spec. Assembled and torqued everything down, cleaned and installed the oil pump/pickup/windage tray, then another oil pan I drilled/tapped for return. Threw the head and everything else on, set valve timing, belts, alternator, flywheel/clutch, transmission, installed in car. Got it in and cranking in 5 hours start to finish.
Turned over the engine w/out ECU hooked up to build oil pressure, gauge indicated like 10psi at a slow crank so I threw MS in and started. Planned to do the FM "new engine break-in" procedure, warmed it, coolant, got 200 feet away from my house on very gentle acceleration and it started knocking something bad. Aftermarket oil pressure gauged worked while cranking but suddenly didn't work while running. Checked all connections and everything was great. Cranked car with turbo feed line disconnected and a torrent of oil shot out.
Like I said, not surprised but am disappointed. This was going to be the most epic redneck A-Team engine I've ever heard of. Will post pictures later.
Cost to "build" this motor:
Oil: $11.00
Filter: $3.50
Rubber hose: $4.00
$18.50 total. Damn.
Will post pictures later, going to tell a quick story and take a shower & head out for the evening. Tore the block completely down and ran over to my brothers where we welded that perfectly round hole shut using a "plug" I cut with a hole saw out of another blown block using nickle rods on an old Lincoln stick welder. After we finished that up I found a huge crack in the block in the other side around the number 1 crank journal, so I drilled the crack ends and jbwelded it up. Ran a ball hone through the cylinders, took a burr to the crank and cleaned up all the sharp edges, power washed everything and stuck the crank in. Measured the main bearings, they all checked out in spec.
At this point I took the rods/pistons from my original car's engine which were in fantastic shape and cleaned them up really well, checked ring gaps and matched them to cylinders then installed pistons. Checked rod bearings out, they were in spec. Checked crank thrust bearing, in spec. Assembled and torqued everything down, cleaned and installed the oil pump/pickup/windage tray, then another oil pan I drilled/tapped for return. Threw the head and everything else on, set valve timing, belts, alternator, flywheel/clutch, transmission, installed in car. Got it in and cranking in 5 hours start to finish.
Turned over the engine w/out ECU hooked up to build oil pressure, gauge indicated like 10psi at a slow crank so I threw MS in and started. Planned to do the FM "new engine break-in" procedure, warmed it, coolant, got 200 feet away from my house on very gentle acceleration and it started knocking something bad. Aftermarket oil pressure gauged worked while cranking but suddenly didn't work while running. Checked all connections and everything was great. Cranked car with turbo feed line disconnected and a torrent of oil shot out.
Like I said, not surprised but am disappointed. This was going to be the most epic redneck A-Team engine I've ever heard of. Will post pictures later.
Cost to "build" this motor:
Oil: $11.00
Filter: $3.50
Rubber hose: $4.00
$18.50 total. Damn.
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08-02-2013, 11:43 PM
#53
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The JB weld wasn't really critical, I was more lol'ing over the giant hole we plugged by welding in another piece of cast iron. Neither of those "patches" failed, it started knocking for some reason. I suspect one of the bearings might've been too far off... Used plastigauge after all.
Random picture of my friends 470hp Merc:
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08-02-2013, 11:50 PM
#54
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I don't know anything about this owning a house ****, so I'm winging it just like I do everything else:
House day my realtor found it:
Today: (obviously w/out snow...)
My first tile job:
Bathroom before:
Bathroom today:
Going to be laying tile around the tub tomorrow, floor next weekend. Total investment on upgrades and repairs to this house is $9700.00. Have purchased a new range, fridge, tile, garage door, garage door opener, furnace, water heater, **** loads of paint, sheetrock, drywall compound, more paint, and a few tools here and there. On the list to complete: Tile wall/floor of bathroom, finish sheetrock and paint basement, redo hardwood floors, sell.
House day my realtor found it:
Today: (obviously w/out snow...)
My first tile job:
Bathroom before:
Bathroom today:
Going to be laying tile around the tub tomorrow, floor next weekend. Total investment on upgrades and repairs to this house is $9700.00. Have purchased a new range, fridge, tile, garage door, garage door opener, furnace, water heater, **** loads of paint, sheetrock, drywall compound, more paint, and a few tools here and there. On the list to complete: Tile wall/floor of bathroom, finish sheetrock and paint basement, redo hardwood floors, sell.
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08-06-2013, 07:33 PM
#60
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I found that compressor... Now only missing the wheel. 
To be fair, the welded part (and jb weld for that matter) didn't fail. I think the oil pump failed, nothing else explains why it had no pressure after actually running. Didn't break that pump down and scrub / inspect the entire thing before reinstalling, only cleaned with detergent and installed.
What can I say? I'm a jackass and made a great story. Would've been better if it ran without knocking.
Kinda sucks pouring all this time and work into the place just to sell, but with the margin of profit I stand to make on just this ONE house I could retire after finding half a dozen more like it.
What can I say? I'm a jackass and made a great story. Would've been better if it ran without knocking.
Kinda sucks pouring all this time and work into the place just to sell, but with the margin of profit I stand to make on just this ONE house I could retire after finding half a dozen more like it.
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