plastic caps on end of injectors

Mar 28, 2008
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i just did a gt40p swap when i went to put the injectors back in i noticed 4 of them the plastic caps on the inectors were cracked and 2 were gone. i put the injectors in anyway doesnt seem to run bad then again with the add on,s the powewr isn not what i expected couls these plastic caps make that much of an issue?
 
The pintle caps hold the O ring in place and keep it from sliding off and into the manifold. If the correct pintle caps are used, they do not have any effect on the injector spray pattern.

Fuel injector seal kits with 2 O rings and a pintle cap (Borg-Warner P/N 274081) are available at Pep Boys auto parts. Cost is about $2.74 per kit.. The following are listed at the Borg-Warner site ( http://www.borg-warner.com ) as being resellers of Borg-Warner parts:

http://www.partsplus.com/ or http://www.autovalue.com/ or http://www.pepboys.com/ or http://www.federatedautoparts.com/

Most of the links above have store locators for find a store in your area.

Use motor oil on the O rings when you re-assemble them & everything will slide into place. The gasoline will wash away any excess oil that gets in the wrong places and it will burn up in the combustion chamber.

The pintle caps fit either injectors with a pin sticking out the injector end or 4 with more tiny holes in the injector end.

Heating the pintle caps in boiling water makes it much easier to install them.