Core support sheen & battery acid - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**71CHEVYSHORTBED402** · 07-16-2017, 11:03 PM

Core sheen:

I had the impression the factory sheen for the under carriage and engine compartment was satin. These are the original "gussets" for the core support and fender. I cleaned them up with a nylon brush, which dulled them up a bit.

I'm no paint expert, but to me they look semi-gloss bordering on gloss. What's your opinion on the original sheen for a core support?

Battery acid:

Thought I had a rust free body until I came to this RH gusset, which I'm 99% sure is due to battery acid. It wasted the battery tray. I still need to clean the core support, which looks solid (and white). No more than surface rust on the RH fenders, once I busted through the acid anyway.

I'm fully responsible for said battery acid. While I kept my engine compartment clean, I used to buy cheap batteries, AND always left the negative side loose for "convenience". It was a top post battery, which may have been a contributor. Just an assumption here, but seems top posts create more external acid than side posts. For any Toyota owners anyway, you probably can relate.

07-16-2017, 11:03 PM	#1
71CHEVYSHORTBED402 Senior Member Join Date: Feb 2009 Location: Northern Nevada Posts: 7,129	Core support sheen & battery acid Core sheen: I had the impression the factory sheen for the under carriage and engine compartment was satin. These are the original "gussets" for the core support and fender. I cleaned them up with a nylon brush, which dulled them up a bit. I'm no paint expert, but to me they look semi-gloss bordering on gloss. What's your opinion on the original sheen for a core support? Battery acid: Thought I had a rust free body until I came to this RH gusset, which I'm 99% sure is due to battery acid. It wasted the battery tray. I still need to clean the core support, which looks solid (and white). No more than surface rust on the RH fenders, once I busted through the acid anyway. I'm fully responsible for said battery acid. While I kept my engine compartment clean, I used to buy cheap batteries, AND always left the negative side loose for "convenience". It was a top post battery, which may have been a contributor. Just an assumption here, but seems top posts create more external acid than side posts. For any Toyota owners anyway, you probably can relate. Attached Images __________________ Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring it from ground up. With assys, the guide accts for 1000s details such as OEM identifications& part numbers, written in short order. 700+ images include assm, illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025



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