Dropped valve head repair - D-series.org

Go Back   D-series.org D-series Knowledge Factory DIY Forum

D-Series.org is the premier Honda All Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 12-30-2014, 04:23 AM   #1 (permalink)
DIY Guru
 
BogusSVO's Avatar
 
iTrader: (4)
Join Date: Dec 2014
Location: North Gulf coast Al/Fl
Posts: 637
Rep Power: 13 BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
iTrader Score: 4 reviews
Send a message via Yahoo to BogusSVO
Talking Dropped valve head repair

Dropped Valve Head Repair


The Subject head is a 1G 6 bolt head.
This head had extensive work done to it and would cost way more to replace than repair.

The head was loaded with SuperTech +1mm valves, and duel valve springs and Ti retainers.

How the head looked when I received it.



A closer look at #4 cylinder, the one that dropped the valve.



Yes it looks pretty beat. But it is fixable.

First thing to do is disassemble the head and get a parts list going.
At first look, I thought the 4 valves in the #4 cylinder would be the only ones needing replaced.
It turned out only 4 valves of the 16 could be used.


The SuperTech duel springs and Ti retainers tested fine and will be used. About half of the Ti retainers had be rubbed on.

At this time it was decided to install bronze guides, to replace the stock appearing cast iron guides.


The bronze guides installed.


Once the head was cleaned, a couple small cracks were found in #1 cylinder.
__________________
Quote:
this is probably the best noob weve ever had just pop in and actually be worth his weight
Quote:
BogusSVO nomination for newb of the year 2014, maybe lifetime honorary mention as well.
BogusSVO is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 12-30-2014, 04:24 AM   #2 (permalink)
DIY Guru
 
BogusSVO's Avatar
 
iTrader: (4)
Join Date: Dec 2014
Location: North Gulf coast Al/Fl
Posts: 637
Rep Power: 13 BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
iTrader Score: 4 reviews
Send a message via Yahoo to BogusSVO
Default

The seats were cut out


Then the head was pressure tested, using 35psi in the water jacket.
The head did not leak.
So work progressed by removing the 4 seats in #4 cylinder.



New counter bores were cut, and oversized inserts were installed.


Some grinding, polishing and blending was done to smooth out some of the damaged area in the combustion chamber.

Next was to mark the spots to be welded.

What it looked like once back from the welder.


Also to note is the spark plug inserts were installed in cylinders #1 and #4 before welding.

From this point a bit more blending was done to smooth out the welds and a full valve job was performed.

As the seats were cut,


Valve tip height was checked and set to the proper specs.
__________________
Quote:
this is probably the best noob weve ever had just pop in and actually be worth his weight
Quote:
BogusSVO nomination for newb of the year 2014, maybe lifetime honorary mention as well.
BogusSVO is offline   Reply With Quote Quick reply to this message
Old 12-30-2014, 04:25 AM   #3 (permalink)
DIY Guru
 
BogusSVO's Avatar
 
iTrader: (4)
Join Date: Dec 2014
Location: North Gulf coast Al/Fl
Posts: 637
Rep Power: 13 BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
iTrader Score: 4 reviews
Send a message via Yahoo to BogusSVO
Default

Spring installed height was measured and set to 1.550 @ 85lbs


New 3g HLAs were installed, along with the followers and cams.


Bottom of the head.


Close up of #4 cylinder after repair.


Head thickness after repair and rebuild. 5.159
Head build # BBB 744
__________________
Quote:
this is probably the best noob weve ever had just pop in and actually be worth his weight
Quote:
BogusSVO nomination for newb of the year 2014, maybe lifetime honorary mention as well.
BogusSVO is offline   Reply With Quote Quick reply to this message
 
Old 12-30-2014, 04:42 AM   #4 (permalink)
D-Series cadet
 
AlanInFlipFlops's Avatar
 
iTrader: (0)
Join Date: Oct 2012
Location: Hollywood, Florida
Posts: 361
Rep Power: 9 AlanInFlipFlops It's a JDM Star Bitches....
AlanInFlipFlops It's a JDM Star Bitches....AlanInFlipFlops It's a JDM Star Bitches....AlanInFlipFlops It's a JDM Star Bitches....AlanInFlipFlops It's a JDM Star Bitches....
iTrader Score: 0 reviews
Default

I'm always impressed by what a machine shop/machinist can do. Well done!
__________________
Where Da White Women At?
AlanInFlipFlops is offline   Reply With Quote Quick reply to this message
Old 12-30-2014, 05:58 AM   #5 (permalink)
the artist formerly known as drexelstudent11
 
shoebox_civic's Avatar
 
iTrader: (14)
Join Date: Mar 2007
Location: Norristown, PA
Posts: 3,983
Rep Power: 28 shoebox_civic Still a JDM Star....shoebox_civic Still a JDM Star....
shoebox_civic Still a JDM Star....shoebox_civic Still a JDM Star....
iTrader Score: 14 reviews
Send a message via AIM to shoebox_civic
Default

how much did all of that cost the end user?
__________________
99 CRV
17 Q50 2.0T
07 350Z touring
90 Skyline GT-R - HKS Drager exhaust, RSR downpipe, metal wheel turbos
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
shoebox_civic is offline   Reply With Quote Quick reply to this message
Old 12-30-2014, 06:37 AM   #6 (permalink)
DIY Guru
 
BogusSVO's Avatar
 
iTrader: (4)
Join Date: Dec 2014
Location: North Gulf coast Al/Fl
Posts: 637
Rep Power: 13 BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
iTrader Score: 4 reviews
Send a message via Yahoo to BogusSVO
Default

Quote:
Originally Posted by shoebox_civic View Post
how much did all of that cost the end user?
I honestly do not remember, I did that head a couple years ago, I want to say around $600..A replacement head from the company that first did it would have been around $2000
__________________
Quote:
this is probably the best noob weve ever had just pop in and actually be worth his weight
Quote:
BogusSVO nomination for newb of the year 2014, maybe lifetime honorary mention as well.
BogusSVO is offline   Reply With Quote Quick reply to this message
Old 12-30-2014, 07:47 AM   #7 (permalink)
Tape-R taper/driver
 
LowFlyin''s Avatar
 
iTrader: (3)
Join Date: Apr 2010
Location: Oklahoma City
Posts: 574
Rep Power: 17 LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!
LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!
iTrader Score: 3 reviews
Default

Quote:
Originally Posted by BogusSVO View Post
I honestly do not remember, I did that head a couple years ago, I want to say around $600..A replacement head from the company that first did it would have been around $2000
That was going to be my question, but a $1400 difference is enough to warrant salvaging.

So, I recently paid $300 for a bore (.020), hone, deck (.010), mill (.010), and lapping on a 16v head/valves.

You did all of those repairs above for just twice that. Which one was too cheap? lol
__________________
-Chris
'87 Civic Si
'91 CRX SiR
'91 Civic Tape-R
'91 Civic Wagon RT4WD
'03 Astro AWD

Last edited by LowFlyin'; 12-30-2014 at 07:56 AM.
LowFlyin' is offline   Reply With Quote Quick reply to this message
Old 12-30-2014, 07:56 AM   #8 (permalink)
DIY Guru
 
BogusSVO's Avatar
 
iTrader: (4)
Join Date: Dec 2014
Location: North Gulf coast Al/Fl
Posts: 637
Rep Power: 13 BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
iTrader Score: 4 reviews
Send a message via Yahoo to BogusSVO
Default

Low, This is kind of my mantra... Not all shops are equipped the same, and pricing varies across the country.

But for what you had done, I would have been in the ball park, but a few dollars higher. I do not just lap valves, I would have cut the valve seats.
__________________
Quote:
this is probably the best noob weve ever had just pop in and actually be worth his weight
Quote:
BogusSVO nomination for newb of the year 2014, maybe lifetime honorary mention as well.
BogusSVO is offline   Reply With Quote Quick reply to this message
Old 12-30-2014, 07:58 AM   #9 (permalink)
Tape-R taper/driver
 
LowFlyin''s Avatar
 
iTrader: (3)
Join Date: Apr 2010
Location: Oklahoma City
Posts: 574
Rep Power: 17 LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!
LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!LowFlyin' is the fucking MAN!!!!
iTrader Score: 3 reviews
Default

Now that you mention it, I think I used the wrong term. I'm pretty sure they cut the valve seats and valves.
__________________
-Chris
'87 Civic Si
'91 CRX SiR
'91 Civic Tape-R
'91 Civic Wagon RT4WD
'03 Astro AWD
LowFlyin' is offline   Reply With Quote Quick reply to this message
Old 12-30-2014, 08:00 AM   #10 (permalink)
DIY Guru
 
BogusSVO's Avatar
 
iTrader: (4)
Join Date: Dec 2014
Location: North Gulf coast Al/Fl
Posts: 637
Rep Power: 13 BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
iTrader Score: 4 reviews
Send a message via Yahoo to BogusSVO
Default

fair enough then. Or they may have been ground. there are a few different ways a valve job can be done.
__________________
Quote:
this is probably the best noob weve ever had just pop in and actually be worth his weight
Quote:
BogusSVO nomination for newb of the year 2014, maybe lifetime honorary mention as well.
BogusSVO is offline   Reply With Quote Quick reply to this message
Old 12-30-2014, 08:17 AM   #11 (permalink)
wise in the ways of the D
 
the hoove's Avatar
 
iTrader: (0)
Join Date: Jun 2010
Location: Tucson, AZ
Posts: 1,881
Rep Power: 20 the hoove is the fucking MAN!!!!the hoove is the fucking MAN!!!!the hoove is the fucking MAN!!!!the hoove is the fucking MAN!!!!
the hoove is the fucking MAN!!!!the hoove is the fucking MAN!!!!the hoove is the fucking MAN!!!!the hoove is the fucking MAN!!!!the hoove is the fucking MAN!!!!the hoove is the fucking MAN!!!!the hoove is the fucking MAN!!!!the hoove is the fucking MAN!!!!the hoove is the fucking MAN!!!!the hoove is the fucking MAN!!!!
iTrader Score: 0 reviews
Default

Quote:
Originally Posted by BogusSVO View Post
Spring installed height was measured and set to 1.550 @ 85lbs


New 3g HLAs were installed, along with the followers and cams.


Bottom of the head.


Close up of #4 cylinder after repair.


Head thickness after repair and rebuild. 5.159
Head build # BBB 744
Dat quench! Awesome write up
__________________
94 eg coupe (wrecked)
91 cb7 (sold)
07 crv (Sold to ex wife)
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

92 teg ( new project)
Giving money and power to government is like giving whiskey and car keys to teenage boys with d series motors under the hood.

R.I.P Pat PRIMMER! You will be missed.

RIP Paul Walker.
R.I.P. NN4S.
RIP Cali-N00b.
the hoove is offline   Reply With Quote Quick reply to this message
Old 12-30-2014, 08:50 AM   #12 (permalink)
DIY Guru
 
BogusSVO's Avatar
 
iTrader: (4)
Join Date: Dec 2014
Location: North Gulf coast Al/Fl
Posts: 637
Rep Power: 13 BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
iTrader Score: 4 reviews
Send a message via Yahoo to BogusSVO
Default

The quench is lost when you see the bowl dish of the pistons.
Thanks!
__________________
Quote:
this is probably the best noob weve ever had just pop in and actually be worth his weight
Quote:
BogusSVO nomination for newb of the year 2014, maybe lifetime honorary mention as well.
BogusSVO is offline   Reply With Quote Quick reply to this message
Old 12-30-2014, 09:07 AM   #13 (permalink)
the artist formerly known as drexelstudent11
 
shoebox_civic's Avatar
 
iTrader: (14)
Join Date: Mar 2007
Location: Norristown, PA
Posts: 3,983
Rep Power: 28 shoebox_civic Still a JDM Star....shoebox_civic Still a JDM Star....
shoebox_civic Still a JDM Star....shoebox_civic Still a JDM Star....
iTrader Score: 14 reviews
Send a message via AIM to shoebox_civic
Default

Quote:
Originally Posted by BogusSVO View Post
I honestly do not remember, I did that head a couple years ago, I want to say around $600..A replacement head from the company that first did it would have been around $2000
ouch, good to know if my s2k ever drops a valve
__________________
99 CRV
17 Q50 2.0T
07 350Z touring
90 Skyline GT-R - HKS Drager exhaust, RSR downpipe, metal wheel turbos
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
shoebox_civic is offline   Reply With Quote Quick reply to this message
Old 12-30-2014, 09:25 AM   #14 (permalink)
DIY Guru
 
BogusSVO's Avatar
 
iTrader: (4)
Join Date: Dec 2014
Location: North Gulf coast Al/Fl
Posts: 637
Rep Power: 13 BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!BogusSVO is the fucking MAN!!!!
iTrader Score: 4 reviews
Send a message via Yahoo to BogusSVO
Default

Shoebox.. I have done one of those before.. Was a fun head to build, Did the Mod Valve job on it and some runner port work. The Guy came back a few weeks later and was all grinz and he smoked the tires down the street.
__________________
Quote:
this is probably the best noob weve ever had just pop in and actually be worth his weight
Quote:
BogusSVO nomination for newb of the year 2014, maybe lifetime honorary mention as well.
BogusSVO is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the D-series.org forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Security Question
*Required, this field is not shown to others: While balancing on a piece of wood, two inches by four inches known as a 2x4, john and his friend sally both spotted a dalmatian inside a truck with sirens, headed to put out a fire. State what kind of animal is mentioned in the sentence above.
Insurance
Please select your insurance company (Optional)

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On


iconAll times are GMT -8. The time now is 01:34 PM. | Welcome to Forum, please register to access all of our features.