Damaged DG Perf 4 Heads

[rlgrantjr]

I bought a set of DG heads a while back and want to use them.  Both domes have piston and ring shrapnel damage.  I read a post some time ago about SCR saving a set of heads like this.  Does he still do this type of work?

[AAAltered]

That would be me...

Before:
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After:


I had this done in 2008, I don't know if SCR is still doing this, reach out to them.

These heads were re-domed for my 350.  My only mistake was not getting the ORing option..

After they came back I also got the heads and the swinger reannodized and chromed the head bolts:

Before:


After:




[

[SoCal250]

It is my understanding that Scott retired and closed his shop.

[rlgrantjr]

Thanks for the info.

[Hawaii-Mike]

Scott is still doing some work, under the radar.  Give him a call (760) 365-4505.

[SoCal250]

Scott is still doing some work, under the radar.

Good to know. I haven't talked to him in a long time but I have some items that need his expertise.

[so-cal-sdr200]

Thanks for Scott's #.  I need to ask him about the O-Ring size / brand he
uses on his RD250, o-ring head modification.
I am assuming it is a McMaster-Carr part.
Thanks, Jeff

[sav0r]

You'll have to buy a 10 pack for $6.25 and shipping is $13.50. I love McMaster but for small orders it's tough.

Once you get the size check out theoringstore.com, sometimes it's a little cheaper.

[m in sc]

good time to stock up on stainless m6 nylocks 

[SoCal250]

You'll have to buy a 10 pack for $6.25 and shipping is $13.50. I love McMaster but for small orders it's tough.

Here we can take advantage of Will Call for McMaster orders. Just ride over and pick up, no shipping. Same with Sudco

[DesmoDrew]

Thanks for Scott's #.  I need to ask him about the O-Ring size / brand he
uses on his RD250, o-ring head modification.
I am assuming it is a McMaster-Carr part.
Thanks, Jeff

Should be '039' o-ring. That is pretty much a universal number for that part/size. Same size as OEM Yamaha TZ230/350 o-rings.

[so-cal-sdr200]

Is this the McMaster O-ring you are referring to?

https://www.mcmaster.com/o-rings/dash-number~039/

Part number 9452K127

https://www.mcmaster.com/9452K127/

Looks like I'll need to order 100 qty.

Says max temp range 250F ?

(edit:)  Looking closer is see 8 other types of rubber with varying temperature ranges in that size.

Thanks, but I dont know stock TZ O-ring sizes.
Jeff


DesmoDrew:
Should be '039' o-ring. That is pretty much a universal number for that part/size. Same size as OEM Yamaha TZ230/350 o-rings.

[DesmoDrew]

https://www.mcmaster.com/1288N215

[rlgrantjr]

Just an FYI, I sent Scott a text rather than calling him as I really didn't want to bother him if he's retired.  I have not heard back.

[Hawaii-Mike]

I'm not sure that Scott texts people. His phone number might be a land line.