Those Bosch multi-prong spark plug thingies
#1
Those Bosch multi-prong spark plug thingies
I just wanted to add my impression of those "improved" Bosch spark plugs with the multi-electrodes.
I bought of set of 6 to replace the worn out Motocraft ones in there - thinking that the multi-electrode design would increase spark voltage. Bad idea. I ran them for 500 miles in my truck before someone here in the forum brought me to my senses. I went back to the store to get a set of the Autolite double platinums.
When I pulled the Bosch plugs the center electrode was completely worn out - not even above the level of the ceramic insulator. The electrodes and the insulator were both scorched white, clean as a whistle.
I had to gap the Autolites but at least my truck runs better now. Is Ford one of those companies that produces such good stock parts that it doesn't pay to get aftermarket brands?
I bought of set of 6 to replace the worn out Motocraft ones in there - thinking that the multi-electrode design would increase spark voltage. Bad idea. I ran them for 500 miles in my truck before someone here in the forum brought me to my senses. I went back to the store to get a set of the Autolite double platinums.
When I pulled the Bosch plugs the center electrode was completely worn out - not even above the level of the ceramic insulator. The electrodes and the insulator were both scorched white, clean as a whistle.
I had to gap the Autolites but at least my truck runs better now. Is Ford one of those companies that produces such good stock parts that it doesn't pay to get aftermarket brands?
#3
Just another instance of Bosch plugs not getting it done in a Ford vehicle. Seen it here and in several other forums time and time again.
Bosch is a fine company that makes some high quality automotive products and systems, but their fancy spark plugs simply are not a good mix with Ford ignition systems, plain and simple. It should come as no surprise that virtually all Ford techs despise Bosch spark plugs.
Motorcrafts spark plugs are always recommended in a Ford, but you'll be just fine with the Autolites.
Bosch is a fine company that makes some high quality automotive products and systems, but their fancy spark plugs simply are not a good mix with Ford ignition systems, plain and simple. It should come as no surprise that virtually all Ford techs despise Bosch spark plugs.
Motorcrafts spark plugs are always recommended in a Ford, but you'll be just fine with the Autolites.
#4
#5
I had a set of those ibosh plugs in my 4.0 97 ranger, and after about 5,000 Km's the center electrode (and ceramic) separated and bounced around above the cylinder until it eventually was spat out the exchaust. My truck sounded like a diesel tractor. But compression survived so I got off easy.
#6
I hadn't bought the bosch, but paid 6 bucks a plug for split fire, what a joke, lost mpg, rough idle. Ford =motorcraft, bottom line, autolite is the same thing as motorcraft, I think ford use to own autolite didn't they ? It's hard to beat motorcraft parts, even thier filters, and oil are awesome products.
#7
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#8
Ford did own Autolite, or at least some sort of derivation of it, back in the 60's and I think even into the 70s. There is some indication of that in the info set forth on a website of a predecessor and former part of Autolite, a company called Prestolite Wire:
See http://prestolitewire.com/pages/abou...ite_wire/2.php
With all the mergers and buyouts etc. over the years, I'm not really sure about exact dates or periods.
Currently, the Honeywell Corporation owns Autolite, and Autolite makes OEM spark plugs for Motorcraft (and hence Ford).
...In 1927, the expanding Electric Autolite Company acquired the Prestolite Battery Company and during the next 30 years the company diversified into wire and cable, aircraft batteries, spark plugs, electric motors and die castings. In 1961, the brand name "Autolite" was sold to Ford, and the company name was changed to Prestolite. In 1963 the Prestolite Company was purchased by the Eltra Corporation. In 1980, the Eltra Corporation was acquired by Allied Corporation, and in late 1984, four of the manufacturing facilities of the Prestolite Company were combined to form the Prestolite Wire Division.
With all the mergers and buyouts etc. over the years, I'm not really sure about exact dates or periods.
Currently, the Honeywell Corporation owns Autolite, and Autolite makes OEM spark plugs for Motorcraft (and hence Ford).
Last edited by Rockledge; 08-05-2006 at 02:19 PM.