{"product_id":"gasket-maker-1","title":"Gasket Maker","description":"The Adapt Lab 1UZ Non VVTI timing correction kit provides a solution for engine timing issues that arise when installing a 3UZ oil pump onto a 1UZ Non VVTI engine. Toyota's redesign of the UZ engine family for VVTI introduced changes, including a wider oil pump gear and a repositioned idler pulley boss on the 3UZ oil pump. This shift, almost 7mm farther away, results in decreased timing belt tension between the crankshaft and the bank 1 cylinder head.\n\nThis lack of tension causes the bank 1 and bank 2 camshafts to become retarded relative to the crankshaft. Consequently, belt slack migrates to the tensioner side, potentially causing the tensioner arm to max out its travel. If this occurs, the timing belt can jump, leading to engine failure, such as bent intake valves. This issue is compounded if a VVTI tensioner arm, which has 5mm less travel than its Non VVTI counterpart, is used.\n\nThe Adapt Lab kit includes a larger pulley to compensate for the idler boss displacement, a stainless steel adapter for rigid mounting of the idler pulley bearing, a longer bolt for secure thread engagement, and a proper washer. This robust stainless steel construction is chosen over softer aluminum for durability, especially when using stronger valve springs and larger cams. Installation requires clearance adjustments for the fan clutch bracket and the plastic timing belt cover to accommodate the larger pulley.\n\nIt is critical to use the proper Non VVTI tensioner arm with this kit when using a 3UZ oil pump to ensure correct timing belt tension. Additionally, any modifications to the engine block or head, or non-standard head gasket thickness, may result in slight deviations from OEM timing marks. Compatibility is primarily with 1UZ Non VVTI engines when paired with a 3UZ oil pump, and users should verify they have the correct tensioner arm and idler pulley.","brand":"Adapt Lab","offers":[{"title":"Default Title","offer_id":52664198005048,"sku":"1UZ-3UZ-Timing-Correction-Kit","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/686618875.webp?v=1784335036","url":"https:\/\/store.motormia.co\/products\/gasket-maker-1","provider":"MOTORMIA","version":"1.0","type":"link"}