First engine start of build - Honda-Tech


First engine start of build

Reply
 
 
 
Thread Tools Search this Thread
Old 02-11-2017, 02:50 AM   #1
Honda-Tech Member
Thread Starter
 
Join Date: Jan 2013
Location: Dfw area
Posts: 297
Default First engine start of build

b18a1 ok so I have a walbro 255 fuel pump. Gsr oil pump. Do I just prime them both? This engine has never been cranked since my build. So honed cylinder walls. And brand new wiseco pistons and rings. And fully built head. What all do I need to do before I turn over? Do I need to oil a specific way? I wanted to pore the oil all over the valve train when I put it in. But what about the cylinders?
lolv8s is offline   Reply With Quote
Old 02-11-2017, 11:20 AM   #2
Honda-Tech Member
iTrader: (4)
 
sirtef9's Avatar
 
Join Date: Jan 2007
Location: colorado springs, co, albania
Posts: 1,039
Default Re: First engine start of build

Pull your fuel pump fuse and crank it till oil pressure builds, Start it there after.
sirtef9 is offline   Reply With Quote
Old 02-11-2017, 05:23 PM   #3
Honda-Tech Member
Thread Starter
 
Join Date: Jan 2013
Location: Dfw area
Posts: 297
Default Re: First engine start of build

Quote:
Originally Posted by sirtef9 View Post
Pull your fuel pump fuse and crank it till oil pressure builds, Start it there after.
is that going to be it? I put assembly lube on everything but that was 2-3 years ago. This project is at 5 years.
lolv8s is offline   Reply With Quote
Old 02-11-2017, 06:18 PM   #4
Intelligently Stupid
 
TomCat39's Avatar
 
Join Date: Jan 2013
Posts: 5,847
Default Re: First engine start of build

Yes that is it, once the oil light goes off, it shows the pump is working. Crank it over a few more times after the light goes off and you now have oil in all the journals etc just like if the car was ran. Then you can give her fuel and let her rip.
TomCat39 is offline   Reply With Quote
Old 02-12-2017, 09:08 AM   #5
Honda-Tech Member
Thread Starter
 
Join Date: Jan 2013
Location: Dfw area
Posts: 297
Default Re: First engine start of build

Quote:
Originally Posted by TomCat39 View Post
Yes that is it, once the oil light goes off, it shows the pump is working. Crank it over a few more times after the light goes off and you now have oil in all the journals etc just like if the car was ran. Then you can give her fuel and let her rip.
alright cool. i can just unplug the fuel pump fuse or disconnect it by the wire?
lolv8s is offline   Reply With Quote
Old 02-12-2017, 03:08 PM   #6
Intelligently Stupid
 
TomCat39's Avatar
 
Join Date: Jan 2013
Posts: 5,847
Default Re: First engine start of build

Being the ignoramus I am, I didn't figure out what fuse controlled the fuel pump so I just unhooked the wire from the pump.

Now, I just unhook my injectors to stop fuel from happening.
TomCat39 is offline   Reply With Quote
Old 02-12-2017, 11:14 PM   #7
Honda-Tech Member
Thread Starter
 
Join Date: Jan 2013
Location: Dfw area
Posts: 297
Default Re: First engine start of build

I'm the one asking lol. So just unhook the injectors?
lolv8s is offline   Reply With Quote
Old 02-13-2017, 07:33 AM   #8
Intelligently Stupid
 
TomCat39's Avatar
 
Join Date: Jan 2013
Posts: 5,847
Default Re: First engine start of build

Assuming your injectors are operating properly, unhooking them will prevent fuel spray.

I also unhook both plugs from the distributor.

It's the same process I do for compression tests. No spark, no fuel.
TomCat39 is offline   Reply With Quote
Old 02-13-2017, 10:13 PM   #9
Honda-Tech Member
Thread Starter
 
Join Date: Jan 2013
Location: Dfw area
Posts: 297
Icon6 Re: First engine start of build

Quote:
Originally Posted by TomCat39 View Post
Assuming your injectors are operating properly, unhooking them will prevent fuel spray.

I also unhook both plugs from the distributor.

It's the same process I do for compression tests. No spark, no fuel.
but this will prime the block and oil pump for me?
lolv8s is offline   Reply With Quote
Old 02-13-2017, 11:14 PM   #10
Intelligently Stupid
 
TomCat39's Avatar
 
Join Date: Jan 2013
Posts: 5,847
Default Re: First engine start of build

Cranking the motor will do the oil pump. The oil pump is mechanically connected to the crank shaft, you spin the crank shaft you pump oil.

The reason they say to prevent the fuel pump is to prevent fuel from spraying while you are moving the pistons up and down cranking the motor to build oil pressure.
TomCat39 is offline   Reply With Quote
Old 02-14-2017, 03:11 PM   #11
Honda-Tech Member
Thread Starter
 
Join Date: Jan 2013
Location: Dfw area
Posts: 297
Default Re: First engine start of build

Quote:
Originally Posted by TomCat39 View Post
Cranking the motor will do the oil pump. The oil pump is mechanically connected to the crank shaft, you spin the crank shaft you pump oil.

The reason they say to prevent the fuel pump is to prevent fuel from spraying while you are moving the pistons up and down cranking the motor to build oil pressure.
ok so just prime the oil pump then plug the fuel pump back in and crank it up? I need to hook up my catch can first.
lolv8s is offline   Reply With Quote
Old 02-14-2017, 03:29 PM   #12
Intelligently Stupid
 
TomCat39's Avatar
 
Join Date: Jan 2013
Posts: 5,847
Default Re: First engine start of build

Quote:
Originally Posted by lolv8s View Post
ok so just prime the oil pump then plug the fuel pump back in and crank it up? I need to hook up my catch can first.
That's the way I understand it.

You want the car fully assembled or the motor at least for it's first run.

Prime the pump and motor by cranking the motor without spark and fuel, then start her up and look for leaks, purge the coolant, set ignition timing, seat the rings.
TomCat39 is offline   Reply With Quote
Old 02-16-2017, 09:36 AM   #13
Honda-Tech Member
 
94 Civic Si's Avatar
 
Join Date: Mar 2004
Location: Estados Unidos
Posts: 666
Default Re: First engine start of build

Quote:
Originally Posted by TomCat39 View Post
Assuming your injectors are operating properly, unhooking them will prevent fuel spray.

I also unhook both plugs from the distributor.

It's the same process I do for compression tests. No spark, no fuel.
Can you disco the main relay and accomplish the same?
94 Civic Si is offline   Reply With Quote
Old 02-16-2017, 11:26 AM   #14
Honda-Tech Member
 
PyroProblem's Avatar
 
Join Date: Aug 2004
Location: Atlanta
Posts: 4,135
Default Re: First engine start of build

Quote:
Originally Posted by 94 Civic Si View Post
Can you disco the main relay and accomplish the same?
I believe you can since it controls the fuel pump and power to the ecu (IIRC).
I pull the spark plugs too. Less resistance on the motor as your priming the oil, less draw on the battery, starter isnt working as hard. Also a good time to do a preliminary compression test. Kill 2 birds with one stone.
PyroProblem is offline   Reply With Quote
Old 02-16-2017, 12:38 PM   #15
Honda-Tech Member
 
94 Civic Si's Avatar
 
Join Date: Mar 2004
Location: Estados Unidos
Posts: 666
Default Re: First engine start of build

Quote:
Originally Posted by PyroProblem View Post
I believe you can since it controls the fuel pump and power to the ecu (IIRC).
I pull the spark plugs too. Less resistance on the motor as your priming the oil, less draw on the battery, starter isnt working as hard. Also a good time to do a preliminary compression test. Kill 2 birds with one stone.
I like that! I will get compression test numbers to compare with my initial numbers from before the tear-down..
94 Civic Si is offline   Reply With Quote
Old 02-19-2017, 12:53 PM   #16
Honda-Tech Member
 
turbociv910's Avatar
 
Join Date: Oct 2005
Location: expensive land, usa
Posts: 2,356
Default Re: First engine start of build

dissconnect the distributor and that will stop ecu from seeing it being cranked. Just crank it over til the light goes off and a few seconds after to build pressure. then connect distributor again and crank it up
turbociv910 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
lsvtec- coolant under too much pressure? Stillare Honda Civic / Del Sol (1992 - 2000) 6 04-07-2013 10:48 PM
diagnose the source of oil in my cylinders blackeg Tech / Misc 3 01-28-2012 08:26 AM
NO OIL pressure! What can be the problem? BoosteD16 Honda Civic / Del Sol (1992 - 2000) 11 01-24-2007 06:52 AM
ITR oil pump or prodrive/toda/spoon oil pump gear for B20 turbo???? hovic Forced Induction 15 06-15-2004 07:04 PM
question for engine builders!! No-Gi Acura Integra Type-R 7 06-30-2002 08:21 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -8. The time now is 06:50 PM.