carburetor casting flaw restoration options

Grumpy

The Grumpy Grease Monkey mechanical engineer.
Staff member
Hi and thanks for reading. Long story short I bought a 600 dp off summit and it had a casting defect right at the end of one of the bowl bolt threads. The thing leaks like a sieve. It's going to be a massive pain and cost to send it back to summit for a replacement. I don't think they'll cop the return postage. Does anyone know if there is representation here in Australia so I could bypass summit? I know they'll sort it for me but I dare say I'll be the one paying for return postage.
cast1510.JPG

cast1509.JPG

Summit did say they will replace the carb under warranty. But I had to supply them a tracking number for postage. I will get a postage quote first and give them a call. See if they want to cover it. From past experience in posting items to the US from here I'm guessing it could be around $100. I will find out for certain and give summit a call I guess.
cast1510.JPG

cast1509.JPG

the casting defect is in the main body. The bottom fuel bowl bolt just pokes through the casting. Pretty much just leaves a nice hole straight from the bowl.







thank you for clearing that up location of the casting flaw, with the green circled area,, its just a lot clearer that way than looking at a picture and assuming your looking at the same thing the original post refers too.

Did you have it direct shipped from Summit. If so it was a US purchase and their rules apply. Generally that means you have to cover the cost of return freight. Which as you say may cost you an extra $100.00.

Other options are to repair the hole with a permanent repair such as an epoxy alloy mix.

However I think you would be wise to send it back unless you are sure that will work and there are no passages affected.

as mentioned, you have a valid request, and I'd more than likely exchange it, but as he also mentioned , a bit of carefully applied J&B WELD would most likely solve the issue faster and cheaply.
I've dealt with similar repairs to casting flaws and J&B weld epoxy is a valid option
(but of course its not the most pleasant, aesthetic option) and its likely to reduce the component re-sale value significantly

jbweld_lrg.jpg
 
Back
Top