Ordered me some Neway cutters to do my own valve jobs today

[salty_monk]

Tom MLC seems to have a lot of junkers at the moment...

[rapidray]

Ray what model Serdi do you have?

It's an old 100. I also have a Serdi 2000 Micro. Ray.

[Nessism]

Tom MLC seems to have a lot of junkers at the moment...

Stupid me, I trashed a 1000 head a few months ago because it needed guides and some minor welding work to repair a valve cover boss. Kicking myself now.

[Footy.]

I found when using the Neway cutters, that you get better control if you use a long socket on a 3/8" speed brace to drive the cutter. You have better control in avoiding side force, and you can continuously rotate rather than the stop and go of the tee handle drive. This helps avoid chatter.

Footy.

[Nessism]

I started messing around with the Neeway cutters last night by cleaning up the 45 degree seat cut. The intakes cut pretty easy but those exhaust seats are HARD. The head I’m working on has decent seat definition so the cutter is just cleaning up what's already there, and I’m not worried about removing too much material (particularly on the exhaust side). This head has water damage so the seats have some corrosion pitting, which I'm struggling to remove on the exhaust seats. I'm down to just a random pit here and there so my inclination is to let it be vs. cutting deeper (if anyone has any thoughts on this balancing act please share). And using a deep socket drive sounds like a good idea; one of the reasons I'm hesitent to keep cutting those exhaust seats is because of fear of going out of round from side loads on the cutter.

Earlier yesterday I took my valves to a machine shop to get them cleaned up. The shop has a nifty centerless grinder that did a fabulous job dressing the valves and squaring the ends. The owner charged me all of $24 which was quite a deal I thought.

At any rate, after messing around with these cutters I'm glad I ordered them. Figured out I need a smaller 75 degree cutter for the exhaust side so going to order that today.

Good fun.

[Russ' GS1000E]

My engine is apart and I'm reading all this Greek !

What have I gotten into here ??
Where is that 'Sky is Falling' emoticon......

[Nessism]

Intakes are mostly done. I need to exchange the 75 degree cutter I bought for a smaller one so that's holding me up some.

Neway sells different blades for cutting "hard seats", which the exhaust side Suzuki seats definetly are. Wish I knew this going in but the regular cutters are getting the job done, it just takes quite a bit of pressure to make the cuts.

Narrowing the seat is the challange, particularly when making the top 15 degree cut since there is a lot of material to remove because the seat is so wide on top. The photos below show basically a finished intake seat, but the exhausts haven't been narrowed yet. Photos also show some of the corrosion damage that occured on this head. I don't think the pitting will cause any problems...hopefully.

Good fun.

[rapidray]

Looking good Ed. Fun stuff, huh?!! I did my first valve jobs with grinding stones before moving on to Neway stuff back when I was learning. The time involved with 16 vlaves versus 8 is what made me go Serdi. Ray.

[BassCliff]

Hey Ed,

That does look like fun. Thanks for the lesson. Keep 'em coming.


Thank you for your indulgence,

BassCliff

[Nessism]

Looking good Ed. Fun stuff, huh?!! I did my first valve jobs with grinding stones before moving on to Neway stuff back when I was learning. The time involved with 16 vlaves versus 8 is what made me go Serdi. Ray.

Thanks Ray. Yup, takes a LOT of time using these hand-turn cutters. If the seats were softer it would be much easier.

For the last (confirmation) cut on the 45, I colored the seat with a sharpie and then took the cutter and turn it lightly with my fingers, so there is no side load at all - the cutter just kisses the surface and skims off the sharpie mark.

The other cutter should be here Monday or Tuesday so I can finish up then. After that I'm going to get this thing surfaced and call it done.

[rapidray]

Ed, go buy a can of Dykem (machinists dye). Either blue or red. It will make it much easier & quicker for you than a Sharpie. Ray.

[Nessism]

Ed, go buy a can of Dykem (machinists dye). Either blue or red. It will make it much easier & quicker for you than a Sharpie. Ray.

I have some but it's gummy, sharpie works better. Maybe it's too old - must be 10-15 years old.

[rapidray]

You can thin it back down if you have some acetone. Ray.