Replacing the Crankshaft Seal, Accessory Belt, and Tensioner Pulley on a Corolla or Prism (1ZZ-FE Engine)

Updated on January 17, 2019
hardlymoving profile image

Hardlymoving writes about do-it-yourself maintenance and repair of Japanese cars.

Corolla Crankshaft Seal

If a noticeable amount of black oily grime is forming by the passenger side of your engine near the accessory belt, or oil splatter is hitting the engine hood by the belt, the cause is more than likely a worn crankshaft seal. The oil seeping out of the seal will migrate to the crankshaft pulley and fling off—hitting everything within view of the pulley.

A new oil seal is less than $10 and takes approximately one hour to replace when following the procedures outlined in this article. These instructions are for the 1ZZ-FE engine type used in the Toyota Corolla, Celica, MR2, Matrix, Chevrolet Prism, and Pontiac Vibe.

If you decide to replace the accessory belt only, to get rid of a noise, keep in mind that the noise could be from worn bearings in the belt tensioner pulley, and you may need to replace the pulley too. After the belt has been removed, simply remove the protective plastic cap on the pulley with a screwdriver and remove the old pulley by turning the pulley bolt clockwise. Reverse the process to install the new pulley.

Nippon Reinz Crankshaft Seal
Nippon Reinz Crankshaft Seal
1ZZ-FE crankshaft seal.

Step 1: Remove Front Passenger Wheel & Engine Splash Pan

Step 2: Remove the Accessory / Serpentine Belt

Click thumbnail to view full-size

Approximately 60 - 70 foot pounds of torque will be need to relieve the tension on the pulley guide tensioner. Another pair of hands would be helpful in removing the belt while tension is being relieved on the pulley.

Step 3: Remove the Crankshaft Pulley Bolt and Crankshaft Pulley

Click thumbnail to view full-size

The pulley bolt can be removed with a standard electric impact driver. They are usually not very tight. After the bolt has been removed, the crankshaft pulley should slide out will little effort.

Step 4: Remove the Crankshaft Seal

Click thumbnail to view full-size

Using a screwdriver or a seal removal tool, gently apply pulling pressure around the inside of the seal and the seal will eventually give way and pop out. Clean the seal mount surface area with a rag and coat with grease in preparation for the new oil seal.

Step 5: Press Fit the New Seal and Set the Seal Flush With the Side Engine Cover

Click thumbnail to view full-size

Seat the seal in place by using a socket wrench socket that is about the same size diameter of the seal. Gently tap the socket until the seal lays flush with the side engine cover. Be careful. This seal can recess into the engine cover beyond the flush point.

Step 5 - Reverse the Above Steps to Install the Pulley, Belt, and Splash Pan

Consider replacing the accessory / serpentine belt with a new one—the old belt is likely coated with oil. You may want to look into the Bando OEM Quality Serpentine Belt.

This article is accurate and true to the best of the author’s knowledge. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters.

Questions & Answers


      0 of 8192 characters used
      Post Comment
      • profile image


        7 months ago

        Very helpful! This is exactly the type of oil leak I had. Thanks for posting.

      • hardlymoving profile imageAUTHOR


        11 months ago from Memphis, TN

        89 Corollas did not have the 1ZZ-FE engine.

      • profile image


        11 months ago

        Is this apllicable to 89 corollas


      This website uses cookies

      As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

      For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

      Show Details
      HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
      LoginThis is necessary to sign in to the HubPages Service.
      Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
      AkismetThis is used to detect comment spam. (Privacy Policy)
      HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
      HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
      Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
      CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
      Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
      Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
      Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
      Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
      Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
      Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
      VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
      PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
      Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
      MavenThis supports the Maven widget and search functionality. (Privacy Policy)
      Google AdSenseThis is an ad network. (Privacy Policy)
      Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
      Index ExchangeThis is an ad network. (Privacy Policy)
      SovrnThis is an ad network. (Privacy Policy)
      Facebook AdsThis is an ad network. (Privacy Policy)
      Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
      AppNexusThis is an ad network. (Privacy Policy)
      OpenxThis is an ad network. (Privacy Policy)
      Rubicon ProjectThis is an ad network. (Privacy Policy)
      TripleLiftThis is an ad network. (Privacy Policy)
      Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
      Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
      Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
      Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
      ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
      Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
      ClickscoThis is a data management platform studying reader behavior (Privacy Policy)