Looking for O-360 A1A exhaust part numbers

[RVFan671]

During condition inspection this weekend I'm finding my exhaust needs love. I'm looking for what part number thise springs are and also what bolts, nuts and washers. I know they are metal lock nut but I'm not sure the AN size. They are smaller than AN3 and use 5/16 hex on the head of the bolt and 1/4 inch wrench on the small nut (which was the nuts on 3 of my 4 bolts).

If you know the p/n for the stud nuts, washer and lock washer that'd be helpful too. The plane is a 91 rv-4 with O-360 A1A and the exhaust gaskets are sl77611.

Of you know of a welder in SW Washington or portland OR I'll take that down too. Have a Crack around part of one of the flanges after a one nut was found missing during the inspection.

 

[RV6_flyer]

I do not recognize that exhaust system.

Russ McCutcheon may be able to help. He is an excellent welder.

Also Steve at Experimental Aircraft Metal Fabrication is another excellent welder.

Not sure if either of them are the right exhaust system welders but bet both can point you in the right direction.

 

[RVFan671]

Thank you. I had reached out to Russ just before the thread and he did end up responding last night that he thinks it'll be repairable. Attaching files of the couple welds I'd like in case anyone is interested. One is of the original EGT probe that was too far from the flange.

 

[RVFan671]

Still looking for the slip joint hardware. The bolts should be of AN type with the metal lock nuts but I anticipate those springs will be tough to come by for a p/n as neither of the A&P that have seen the plane have ever seen the springs like that.

 

[taor]

Vans has a kit for the exhaust system
Greetings
taor