Champion 7989 One Piece Design Spark Plug – Ford 3V

Ford Problems, How To Auto Repair, Lisle Specialty Tools, What's New? 28 Comments

Champion 7989 spark plugs are a one piece design that eliminates separating (image courtesy of

Summary: In this auto repair blog post, we provide information about an improved design spark plug for Ford 3 valve engines. The original equipment Ford Motorcraft spark plugs have became notorious for breaking when being removed.  One of our previous articles is on broken spark plug removal; but who wants to put the same bad design back in?  There was a huge need for a newly designed replacement spark plug that would work in place of Ford’s badly designed spark plug that has caused much expense and inconvenience for many Ford owners. This article is about that plug and has application information as well.

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Lisle Automotive Specialty Tool Corporation

Lisle Specialty Tools, Mechanics Tools No Comments
This reel lawn mower was the type Lisle produced once upon a time

Lisle Auto Tools manufacturing company was started in Clarinda, Iowa in 1903 by C.A. Lisle. The first tool his company manufactured surprisingly wasn’t an automotive tool at all, it was water well drilling equipment powered by a horse! Subsequent products were not automotive related either, remember old ringer washers? And how about the old style manual push mower? Some twenty years after the Lisle Corporation was first started, the tool company made its first automotive product.

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Ford Spark Plug Removal Tool – Picture of Ford’s Bad Design

Auto Specialty Tools, Consumer, Ford Problems, Lisle Specialty Tools 106 Comments


If  Ford’s poorly designed spark plugs would just all come out like these.

© Lisle Spark Plug Extractor DLT  Summary: The lucky guy that removed the spark plugs in the picture above, has someone watching over him, he narrowly escaped huge spark plug problems. We have orders everyday for specialty tools to remove broken spark plugs from Fords. The two piece spark plug typically comes apart, separating the main part of the spark plug from the huge electrode shield. Ford’s spark plug design comes under the heading “what were they thinking?”.  

DenLors Tools was one of the first automotive tool suppliers to sell the Rotunda 303-1203 specialty tool that was recommended in the Ford TSB to remove these broken spark plugs when they were broken upon removal. Now, we have a much better solution in the LIS65600. The Lisle specialty tool has quickly became our most popular tool for removing Ford broken spark plugs. We have had only positive feedback from auto techs that have used this tool. Ford forums have recently been helping to spread the word of the success of this new tool. There is quite a buzz about a Ford class action suite regarding this poorly designed spark plug, but our role is to help those that are dealing with broken spark plug problems, to remove them as quickly and inexpensively as possible.

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Alternative to the Rotunda 303-1398 – Auto Specialty Tool

Auto Specialty Tools, Ford Problems, Lisle Specialty Tools, What's New? 18 Comments


New Specialty tool for handling Ford broken spark plugs!

© If you’re a subscriber to our automotive tool blog, you know we pointed out in a previous post, the need for a less expensive alternative to the Ford Rotunda 303-1398. The SPX Rotunda 303-1203 removes broken spark plugs on some Ford 5.4 engines, 2004 and up. But it only works after the broken porcelain piece is out of the way. That’s where the new Lisle LIS 65600 automotive specialty tool, comes into the picture. The best way to try to prevent Ford spark plugs from breaking to begin with (per a Ford Technical Service Bulletin-TSB) is to loosen the spark plugs slightly and then soak them with penetrating oil. Sometimes the carbon build up around the electrode shield will still separate from the main part of the spark plug. So, in many cases the porcelain part of the spark plug will stay in. This prevents the use of the 303-1203. Rotunda offers the SPX 303-1398 to remove the porcelain or ceramic piece, but the pins included in this six hundred dollar kit can only be used once. The pins are secured into the center of the broken spark plug (where the electrode was) with loc-tite, then the puller is used to hopefully pull the ceramic piece out of the way, so the two hundred dollar 303-1203 can be used to remove the metal electrode shield.

Lisle’s Method, using the LIS65600 auto specialty tool implements a different approach. First, if the broken porcelain is stuck down in the spark plug hole, the first part of the Lisle kit is used to press it down a little further without breaking it.

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Northstar Waterpump Replacement – Mechanics Tools

Apprentice Tech, Auto Specialty Tools, Lisle Specialty Tools, Mechanics Tools 37 Comments


Northstar water pump replacement, not so bad with correct mechanics tool

© Summary: This automotive tool blog features a specialty auto mechanics tool for changing the Northstar water pump. The Cadillac Northstar water pump is located at the rear of the engine. As the picture shows, there is a belt cover over the water pump drive belt at the rear of the front valve cover.

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