Cylinder head question
 

I have some replacement heads out of a junkyard. I am wanting to
repair this vehicle as cheaply as possible. The heads are rough
looking, rust inside the valve and everything. I will say that I
filled up the intake ports with cleaner and it held overnight. (Paint
thinner).

Someone told me if I take the valves out to clean everything, It might
not seal right when I put it back togther, and I could have a miss or
check engine light.

My origional intention was to take it apart to clean it and to lap the
valves. (And install new valve guides that came with my kit).

The guy at the salvage yard said they came off a motor with a lower
end knock. The heads were checked for flatness and are within .001.
They were taken off the motor a day or so before we got them.

I need to get this thign going cheaply. I am going to get rid of it.
SHould I leave the heads alone and just mount on the truck or take
apart, lap the valves, etc?

I know the "ideal" thing to do would be a valve job, tanked, etc, but
around her eit is alot of money and I plan to get rid of it.

Thanks for any advice!

Cylinder head question
 

"stryped" wrote in message
...
I have some replacement heads out of a junkyard. I am wanting to
repair this vehicle as cheaply as possible. The heads are rough
looking, rust inside the valve and everything. I will say that I
filled up the intake ports with cleaner and it held overnight. (Paint
thinner).

Someone told me if I take the valves out to clean everything, It might
not seal right when I put it back togther, and I could have a miss or
check engine light.

My origional intention was to take it apart to clean it and to lap the
valves. (And install new valve guides that came with my kit).

The guy at the salvage yard said they came off a motor with a lower
end knock. The heads were checked for flatness and are within .001.
They were taken off the motor a day or so before we got them.

I need to get this thign going cheaply. I am going to get rid of it.
SHould I leave the heads alone and just mount on the truck or take
apart, lap the valves, etc?

I know the "ideal" thing to do would be a valve job, tanked, etc, but
around her eit is alot of money and I plan to get rid of it.

Thanks for any advice!

1. I would just clean it up as best I could and put it together.

2. Although you could mark to valves and lap them and put them in the same
hole. Often people use the side of a card board box with holes showing valve
location or drill holes in a board.

3. I would think that if you changed the guides you would need to take it in
for a valve job. Since the guide hole may not be on center to the worn seat.

I would do number 1. It was running good before the lower end engine knock
and you are going to sell it anyway.

Richard W.

Cylinder head question
 

On May 7, 12:23*pm, "Richard W." wrote:
"stryped" wrote in message

...





I have some replacement heads out of a junkyard. I am wanting to
repair this vehicle as cheaply as possible. The heads are rough
looking, rust inside the valve and everything. I will say that I
filled up the intake ports with cleaner and it held overnight. (Paint
thinner).

Someone told me if I take the valves out to clean everything, It might
not seal right when I put it back togther, and I could have a miss or
check engine light.

My origional intention was to take it apart to clean it and to lap the
valves. (And install new valve guides that came with my kit).

The guy at the salvage yard said they came off a motor with a lower
end knock. The heads were checked for flatness and are within .001.
They were taken off the motor a day or so before we got them.

I need to get this thign going cheaply. I am going to get rid of it.
SHould I leave the heads alone and just mount on the truck or take
apart, lap the valves, etc?

I know the "ideal" thing to do would be a valve job, tanked, etc, but
around her eit is *alot of money and I plan to get rid of it.

Thanks for any advice!

1. I would just clean it up as best I could and put it together.

2. Although you could mark to valves and lap them and put them in the same
hole. Often people use the side of a card board box with holes showing valve
location or drill holes in a board.

3. I would think that if you changed the guides you would need to take it in
for a valve job. Since the guide hole may not be on center to the worn seat.

I would do number 1. It was running good before the lower end engine knock
and you are going to sell it anyway.

Richard W.- Hide quoted text -

- Show quoted text -

It is ok to put new seals? There are deposits, rust on the valves int
he head. SO you are sayign to bolt on as is?

Cylinder head question
 

stryped wrote:
I have some replacement heads out of a junkyard. I am wanting to
repair this vehicle as cheaply as possible. The heads are rough
looking, rust inside the valve and everything. I will say that I
filled up the intake ports with cleaner and it held overnight. (Paint
thinner).

Someone told me if I take the valves out to clean everything, It might
not seal right when I put it back togther, and I could have a miss or
check engine light.

My origional intention was to take it apart to clean it and to lap the
valves. (And install new valve guides that came with my kit).

If you're going to install new guides STOP NOW. Take the heads to a shop
and have them remove the old guides and install the new ones. They will
then ream them to proper size then cut the seats to match the new valve
centerline.
That would HAVE to be done if you install new guides.


The guy at the salvage yard said they came off a motor with a lower
end knock. The heads were checked for flatness and are within .001.
They were taken off the motor a day or so before we got them.

Then they should be OK. I would clean them up good, replace the stem
seals, give the valves a fast lap job (just to make sure they are close
to OK) Then clean them again and install them.


I need to get this thign going cheaply. I am going to get rid of it.
SHould I leave the heads alone and just mount on the truck or take
apart, lap the valves, etc?

I know the "ideal" thing to do would be a valve job, tanked, etc, but
around her eit is alot of money and I plan to get rid of it.

Thanks for any advice!

Since you plan on getting rid of it then just clean them up and bolt it
together and sell it. Don't bother thinking about it more. Just DO IT.

--
Steve W.

Cylinder head question
 

"stryped" wrote in message
...

It is ok to put new seals? There are deposits, rust on the valves int
he head. SO you are sayign to bolt on as is?

-------------------------------------------------------------------------------

No one can tell you that with certainty, without closely inspecting the
heads. But there is probably a 90% chance or better, that you would be just
fine.

However, as much as you have scrutinized this project, I doubt you will be
comfortable until you do a clean and lap.

So either power wash the head completely assembled, and dry thoroughly, or
disassemble the heads, marking the heads and valves to assure the same valve
goes back in the same hole, power wash, lap and reassemble. Do not mix the
valves, do not change the guides.

The valves will clean very well on a bench grinder with a wire wheel. Be
very careful cleaning down in the valve bowel and do not scratch a valve
seat.

Just decide and get to it, I expect you to have this finished last week end.
:)

Cylinder head question
 

On May 7, 3:16*pm, "Tim" wrote:
"stryped" wrote in message

...

It is ok to put new seals? There are deposits, rust on the valves int
he head. SO you are sayign to bolt on as is?

---------------------------------------------------------------------------*----

No one can tell you that with certainty, without closely inspecting the
heads. But there is probably a 90% chance or better, that you would be just
fine.

However, as much as you have scrutinized this project, I doubt you will be
comfortable until you do a clean and lap.

So either power wash the head completely assembled, and dry thoroughly, or
disassemble the heads, marking the heads and valves to assure the same valve
goes back in the same hole, power wash, lap and reassemble. Do not mix the
valves, do not change the guides.

The valves will clean very well on a bench grinder with a wire wheel. Be
very careful cleaning down in the valve bowel and do not scratch a valve
seat.

Just decide and get to it, I expect you to have this finished last week end.
:)

Can I use a cup coarse wire brush for a drill?

Not changing the guides.

Cylinder head question
 

Just do the job!!!!!!!!! All the talk is taking way more time then the job
itself. This is not rocket science, more then enough information has been
given for a blind man with one arm to get the thing running.................

"stryped" wrote in message
...
On May 7, 3:16 pm, "Tim" wrote:
"stryped" wrote in message

...

It is ok to put new seals? There are deposits, rust on the valves int
he head. SO you are sayign to bolt on as is?

---------------------------------------------------------------------------*----

No one can tell you that with certainty, without closely inspecting the
heads. But there is probably a 90% chance or better, that you would be
just
fine.

However, as much as you have scrutinized this project, I doubt you will be
comfortable until you do a clean and lap.

So either power wash the head completely assembled, and dry thoroughly, or
disassemble the heads, marking the heads and valves to assure the same
valve
goes back in the same hole, power wash, lap and reassemble. Do not mix the
valves, do not change the guides.

The valves will clean very well on a bench grinder with a wire wheel. Be
very careful cleaning down in the valve bowel and do not scratch a valve
seat.

Just decide and get to it, I expect you to have this finished last week
end.
:)

Can I use a cup coarse wire brush for a drill?

Not changing the guides.

Cylinder head question
 

On Thu, 7 May 2009 11:33:39 -0700 (PDT), stryped
wrote:

On May 7, 12:23Â*pm, "Richard W." wrote:
"stryped" wrote in message

...





I have some replacement heads out of a junkyard. I am wanting to
repair this vehicle as cheaply as possible. The heads are rough
looking, rust inside the valve and everything. I will say that I
filled up the intake ports with cleaner and it held overnight. (Paint
thinner).

Someone told me if I take the valves out to clean everything, It might
not seal right when I put it back togther, and I could have a miss or
check engine light.

My origional intention was to take it apart to clean it and to lap the
valves. (And install new valve guides that came with my kit).

The guy at the salvage yard said they came off a motor with a lower
end knock. The heads were checked for flatness and are within .001.
They were taken off the motor a day or so before we got them.

I need to get this thign going cheaply. I am going to get rid of it.
SHould I leave the heads alone and just mount on the truck or take
apart, lap the valves, etc?

I know the "ideal" thing to do would be a valve job, tanked, etc, but
around her eit is Â*alot of money and I plan to get rid of it.

Thanks for any advice!

1. I would just clean it up as best I could and put it together.

2. Although you could mark to valves and lap them and put them in the same
hole. Often people use the side of a card board box with holes showing valve
location or drill holes in a board.

3. I would think that if you changed the guides you would need to take it in
for a valve job. Since the guide hole may not be on center to the worn seat.

I would do number 1. It was running good before the lower end engine knock
and you are going to sell it anyway.

Richard W.- Hide quoted text -

- Show quoted text -

It is ok to put new seals? There are deposits, rust on the valves int
he head. SO you are sayign to bolt on as is?


Fix it right or scrap it NOW.
If you don't do it RIGHT all the work you put in is wasted. You will
still have a pile of scrap.
Make up your mind if you are serious about getting it running.
A crappy patch job just to sell the vehicle is fraud.

Cylinder head question
 

On Thu, 07 May 2009 14:43:07 -0400, "Steve W."
wrote:

stryped wrote:
I have some replacement heads out of a junkyard. I am wanting to
repair this vehicle as cheaply as possible. The heads are rough
looking, rust inside the valve and everything. I will say that I
filled up the intake ports with cleaner and it held overnight. (Paint
thinner).

Someone told me if I take the valves out to clean everything, It might
not seal right when I put it back togther, and I could have a miss or
check engine light.

My origional intention was to take it apart to clean it and to lap the
valves. (And install new valve guides that came with my kit).

If you're going to install new guides STOP NOW. Take the heads to a shop
and have them remove the old guides and install the new ones. They will
then ream them to proper size then cut the seats to match the new valve
centerline.
That would HAVE to be done if you install new guides.


The guy at the salvage yard said they came off a motor with a lower
end knock. The heads were checked for flatness and are within .001.
They were taken off the motor a day or so before we got them.

But how long was the engine sitting with the intake open to weather,
etc. before the heads were pulled.
Have the heads dissassembled and guide clearances checked.. Have the
seats touched up with a proper seat cutter or stone and have the
valves touched up on a valve grinder.

If the guides are a wee bit loose they can be resized with an internal
Knurl. The knurl will also help hold oil - I've seen knurled guides
outlast new replacement guides in the field.

Put the new seals on and you know you have a proper repair.

Then they should be OK. I would clean them up good, replace the stem
seals, give the valves a fast lap job (just to make sure they are close
to OK) Then clean them again and install them.


I need to get this thign going cheaply. I am going to get rid of it.
SHould I leave the heads alone and just mount on the truck or take
apart, lap the valves, etc?

I know the "ideal" thing to do would be a valve job, tanked, etc, but
around her eit is alot of money and I plan to get rid of it.

Thanks for any advice!

Since you plan on getting rid of it then just clean them up and bolt it
together and sell it. Don't bother thinking about it more. Just DO IT.

Cylinder head question
 

"stryped" wrote in message
...

It is ok to put new seals? There are deposits, rust on the valves int
he head. SO you are sayign to bolt on as is?

---------------------------------------------------------------------------------------------------------------------------------

No one can tell you that with certainty, without closely inspecting the
heads. But there is probably a 90% chance or better, that you would be just
fine.

However, as much as you have scrutinized this project, I doubt you will be
comfortable until you do a clean and lap. That is what I would do.

So either power wash the head completely assembled, and dry thoroughly, or
disassemble the heads, marking the heads and valves to assure the same valve
goes back in the same hole, power wash, lap and reassemble. Do not mix the
valves, do not change the guides.

The valves will clean very well on a bench grinder with a wire wheel. Be
very careful cleaning down in the valve bowel and do not scratch a valve
seat.

Cylinder head question
 

"stryped" wrote in message
...
On May 7, 12:23 pm, "Richard W." wrote:
"stryped" wrote in message

...





I have some replacement heads out of a junkyard. I am wanting to
repair this vehicle as cheaply as possible. The heads are rough
looking, rust inside the valve and everything. I will say that I
filled up the intake ports with cleaner and it held overnight. (Paint
thinner).

Someone told me if I take the valves out to clean everything, It might
not seal right when I put it back togther, and I could have a miss or
check engine light.

My origional intention was to take it apart to clean it and to lap the
valves. (And install new valve guides that came with my kit).

The guy at the salvage yard said they came off a motor with a lower
end knock. The heads were checked for flatness and are within .001.
They were taken off the motor a day or so before we got them.

I need to get this thign going cheaply. I am going to get rid of it.
SHould I leave the heads alone and just mount on the truck or take
apart, lap the valves, etc?

I know the "ideal" thing to do would be a valve job, tanked, etc, but
around her eit is alot of money and I plan to get rid of it.

Thanks for any advice!

1. I would just clean it up as best I could and put it together.

2. Although you could mark to valves and lap them and put them in the same
hole. Often people use the side of a card board box with holes showing
valve
location or drill holes in a board.

3. I would think that if you changed the guides you would need to take it
in
for a valve job. Since the guide hole may not be on center to the worn
seat.

I would do number 1. It was running good before the lower end engine knock
and you are going to sell it anyway.

Richard W.- Hide quoted text -

- Show quoted text -

It is ok to put new seals? There are deposits, rust on the valves int
he head. SO you are sayign to bolt on as is?

I would put in new seals if I had them. Get the loose rust off and put it
together.

Richard W.