![]() ![]() We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from. We keep good quality and competitive price to ensure our customers benefit Ģ. Q7: How do you make our business long-term and good relationship?Ī: 1. ![]() Do you test all your goods before delivery?Ī: Yes, we have 100% test before delivery Can you produce according to the samples?Ī: Yes, we can produce by your samples or technical drawings. Samples Submission: 21-28 days with existing toolings. New Molds: 60 days, depending on ordering quantity. We'll show you the photos of the products and packages before you pay the balance.Ī: Existing molds: 30 days, depending on ordering quantity. Freeze plugs are used to seal the coolant passages in the engine block which are left open after casting. Strick Process Control,International Standard Criterias.Ī: T/T 30% as deposit, and 70% before delivery. Freeze plugs, also known as core plugs or expansion plugs, can help protect engines from cold weather-related damage caused by below-freezing temperatures. Seals Tests for Endurance and Performance,PPAP Level IIl Submission. Q1.What are the advantages of your company?Ī: NNK is a brand belong to NOK-CN factory.We have Impressive Professional Technology,Experienced Technical Staffs, Strict Inspection Procedures,High Quality and Afforable Prices On-Time Delivery,Problems identification & Solutions offers. freeze plug Common modelsĬore plug,freeze plug tool,frost plug,welch plugs,engine freeze plug,freeze plug installation tool,freeze plug installation,engine core plugs,brass freeze plugs We have their own matching freezing plugs according to your model and structure to ensure the quality. Our NNK has rich experience in the research and production of freezing plugs. When your freezer plug is rusted or has other problems and can no longer be used, please replace the NNK freezer plug accessories in time. Therefore, the effect of freezing plug cannot be ignored. If there are leaks and overflows, the problem will be even more serious. It is a very troublesome problem that the engine block is frozen. ![]() Mounting Location: Freeze plugs may be located on the side, back, or underside of the engine block.įreeze plugs not only help prevent cracks in the internal engine, but they also reduce the chance of coolant starting to leak. When it's time to replace cryoplugs, you can find reliable cryoplug kits at NNK. Fortunately, you can prevent engine block ruptures with high-quality antifreeze plugs. Without antifreeze, the water pumped through the cooling system may freeze and may cause damage to the engine block A bigger problem arises. After the water freezes, the water plug will be swelled out first, so as to protect the body or cylinder head to a certain extent. Some smaller water plug holes are processing channels during machining, and are blocked with water after processing some larger water plug holes are designed to protect the body or cylinder head, and the engine that is filled with water in winter forgets to release water. I don't ever recall having to change a second set of core plugs in any motor that I've every replaced them all and cleaned the block out of.Ĭhanging all the core plugs is a pita when the motor is in the car.NNK 58mm Zinc Plated stainless steel, iron, brass engine cap Freeze Plug Then I reinstall new steel core plugs with sealant. Also, after I pull out all the old plugs, I scrape out as much of the crud around the cylinder walls as I can, then flush the block with water until it runs clean. The worst two are the two at the back of the motor inside the trans bell. When I took the short cut, and the 2nd one rots through, I usually change the rest of them. Seldom have I gotten away with just changing one plug. I also have discovered that when one plug rots through, more will follow very soon. I've replaced a lot of freeze/core plugs and have dug out a pretty large amount of sand in the process. My guess would be that getting the sand out of the block after casting may have been pretty hap-hazard, sometimes I've wondered how effectively that really was really done. I've had lots of 318s, as for the "plugs" protecting the block from freezing, the odds are not so good, probably less then 25% to the good. ![]() Freeze plugs? Core plugs? Yep, one of them. ![]()
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