88v8 Ivor Duarte Gloucestershire UK (1041 posts) Registered: 02/11/2010 04:29AM Main British Car: 1974 Land Rover Lightweight V8 |
Painting the inside of the block
Some engines used to be painted internally, to aid oil run-back, and when new to seal in casting sand.
Glyptal.... [www.frost.co.uk] Worthwhile on a rebuild? Or only on a racing engine? Or not at all? Ivor |
BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6470 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: Painting the inside of the block
Ivor, I used silver Cerrakote on my stroker 300 but it'll be awhile before I can tell you how well it holds up.
Jim |
Jim Stabe Jim Stabe San Diego, Ca (829 posts) Registered: 02/28/2009 10:01AM Main British Car: 1966 MGB Roadster 350 LT1 Chevy |
Re: Painting the inside of the block
I have always been hesitant to paint the inside of the block or anything else that has oil running over it. All it would take is a small bit of paint that wasn't adhered well to get sucked up in the pump and ruin your entire day. Nothing wrong with smoothing the cast surfaces and streamlining the drain back holes but I would stay away from coating the surfaces. Just my $0.02
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MGBV8 Carl Floyd Kingsport, TN (4512 posts) Registered: 10/23/2007 11:32PM Main British Car: 1979 MGB Buick 215 |
Re: Painting the inside of the block
"Nothing wrong with smoothing the cast surfaces and streamlining the drain back holes"
More than good enough for most of us. |
88v8 Ivor Duarte Gloucestershire UK (1041 posts) Registered: 02/11/2010 04:29AM Main British Car: 1974 Land Rover Lightweight V8 |
Re: Painting the inside of the block
I think it's a very different proposition, factory painting where the block is new and clean, really clean deep down in the pores, and the paint can be slow baked.
I'm not sure it's really possible to deep-clean a used block. Perhaps for a show rod with a glass sump. Ivor |
BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6470 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: Painting the inside of the block
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BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6470 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: Painting the inside of the block
Yep. Ran the self cleaning cycle on it.
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mgb260 Jim Nichols Sequim,WA (2463 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: Painting the inside of the block
Wife must not have been at home! LOL I got caught cleaning tail light and front parking light lenses in the dishwasher!
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MGBV8 Carl Floyd Kingsport, TN (4512 posts) Registered: 10/23/2007 11:32PM Main British Car: 1979 MGB Buick 215 |
Re: Painting the inside of the block
He has his own oven (& washer & dryer) out in his workshop. I would have liked to have seen that iron block go up the stairs & into the oven. Probably brought it over the side. Tow motor or hoist?
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mgb260 Jim Nichols Sequim,WA (2463 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: Painting the inside of the block
Yeah, I knew he had his own oven. Just my attempt of humor. A couple of strong young helpers could pack it but probably a hoist.
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BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6470 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: Painting the inside of the block
Fork lift. The mezzanine railing has a section that lifts out. (Unfortunately the fork lift has a bad seal so I can't use it much and it only works inside where there is concrete) Still had to get it over to the oven though. The block weighs 140lbs so heavy yeah but manageable. I might have used a dolly, don't recall. The rack in the oven sagged a bit. I've abused that oven very badly to the point where it needs remedial attention on the controls. Strange but it seems they never were intended to heat a large 1/4" thick sheet of brass with all 4 burners under a 25 gallon pot. There was some meltage but it's all good, I'm sure I can fix it. Running the self clean cycle on engine blocks was also a bit excessive. You really don't need 700 degrees F to bake a block and the oven wasn't designed for that kind of thermal mass at that heat. It's an all day project. But on the plus side when it's done you just shake out the ash. So to speak. Seriously though, 500 degrees for a couple of hours is enough.
I still hadn't installed the 2nd hand dish washer, and then I went and stole it for the bus. I really wanted that for the shop, but apparently not all that badly. Speaking of washer/drier I have a load of shop rags to run. These are all 2nd hand appliances of somewhat dodgy nature but usable. They simply turn up from time to time and make serviceable if somewhat temporary auxiliary shop equipment. I'm sure many of you have done the same. Jim |
MGBV8 Carl Floyd Kingsport, TN (4512 posts) Registered: 10/23/2007 11:32PM Main British Car: 1979 MGB Buick 215 |
Re: Painting the inside of the block
500 degrees worked fine for that exhaust manifold we cooked. Probably would have for that block with more time.
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Re: Painting the inside of the block
Here in the Uk, sounds starnge but get down to Wilko & buy some red step paint, I was advised by my local engine machinest to use it, Ive used it & my friends have on Ford, Chevy blocks, just de grease it well & its never a problem!
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