Cylinder head question

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.

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?

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.

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.

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.

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?

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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.

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.................

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

Not changing the guides.

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.

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.

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?

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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.

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.