7.3 idit build

[ISPKI]

You could probably pickup Flouropenetrant fluid for a fairly cheap price as well which, when combined with a blacklight flashlight, should show any fine cracks. There are also testing facilities that offer this service for a fairly cheap price. My company uses one right down the road from us and they charge a min lot charge of 74$

 

[AndrewLinderman]

I’m currently looking into that stuff and getting opinions.

 

[AndrewLinderman]

Alright in the next few days I will be cleaning up the block for paint and polishing the crankshaft.

For polishing that crankshaft. What is the recommended sandpaper grit? 800,1000? Also does it matter what metal polish is used

 

[Austin86250]

Alright in the next few days I will be cleaning up the block for paint and polishing the crankshaft.

For polishing that crankshaft. What is the recommended sandpaper grit? 800,1000? Also does it matter what metal polish is used

I do 400 grit

 

[bulletpruf]

You could probably pickup Flouropenetrant fluid for a fairly cheap price as well which, when combined with a blacklight flashlight, should show any fine cracks. There are also testing facilities that offer this service for a fairly cheap price. My company uses one right down the road from us and they charge a min lot charge of 74$

When I checked my cylinder heads, I used dye penetrant (Zyglo) and magnetic particle (Magnaflux) testing. Both showed the cracks, but I preferred the magnaflux for testing magnetic material.

 

[bulletpruf]

Alright in the next few days I will be cleaning up the block for paint and polishing the crankshaft.

For polishing that crankshaft. What is the recommended sandpaper grit? 800,1000? Also does it matter what metal polish is used

Crosshatch in your cylinder looks nice. Looks like you didn't go too fine on the grit.

On the engine paint, I went with VHT engine enamel in Ford Gray - ended up needing 3 or 4 cans. I wasn't able to find it locally so I had to order from Amazon. Went on fine, but I'm not super impressed with resistance to chemicals - came off real easy with acetone. I was hoping it would be more resistant to petroleum based stuff.

May have mentioned this already, but when you clean, make sure the head bolt holes are 100% clear. That's if you're using ARP head studs. Otherwise, they won't seat all the way and you'll have clearance issues with rocker arms.

On the crank, I went with 600/1000/1500 then Mother's Mag Wheel and Aluminum polish. It's a fairly tedious process, and I think you'd be fine if you just did 600/1000. The 1500 and metal polish didn't seem to make much difference.

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[AndrewLinderman]

Sweet. Appreciate all the comments and information.

What is the best way of removing the valve springs and installing new ones?Is there a tool needed?

 

[Rdnck84_03]

Is there a tool needed?

I would say a valve spring compressor is mandatory. I have accomplished to disassembled with a socket and hammer, but I think it would be rather difficult to reassemble without a compressor.

James

 

[Austin86250]

I would say a valve spring compressor is mandatory. I have accomplished to disassembled with a socket and hammer, but I think it would be rather difficult to reassemble without a compressor.

James

I’d be damn impressed if anyone has done it that way for assembly

 

[Nero]

Another option, and this is one I did on a vw tdi head, get a copper tube, I think 1 1/2 diameter, cut an oval into the side of it, and use a hydraulic press to compress the spring.

Or get the otc tool.

 

[bulletpruf]

Sweet. Appreciate all the comments and information.

What is the best way of removing the valve springs and installing new ones?Is there a tool needed?

You need a valve spring compressor. See this video at about 31:00.

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[Austin86250]

You need a valve spring compressor. See this video at about 31:00.

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Your videos are awesome man your host skills are not reminiscent of a small channel

 

[AndrewLinderman]

Thanks guys. I was able to borrow a spring compressor from a friend luckily worked great.

Only did one head but no play in any of the valve guides.

Does anyone know the difference between positive valve seals and normal seals?

 

[bulletpruf]

Your videos are awesome man your host skills are not reminiscent of a small channel

Thanks!

 

[bulletpruf]

Thanks guys. I was able to borrow a spring compressor from a friend luckily worked great.

Only did one head but no play in any of the valve guides.

Does anyone know the difference between positive valve seals and normal seals?

Positive valve seals don’t move with the valve.

See this video at 34:00 -

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