I am trying to fix an oil leak and figured since I am going to replace the timing cover seal I might as well swap out the old gears. My Haynes manual doesn't have a procedure for the 4 cyl gears but it covers the V-6 gear and chain set. Is it a big deal for a shadetree kind of guy such as my self to pull the gears and replace them?
What should I look for and NOT do when I change them? Any hints tips and or tricks would be appreciated.

Thanks PFFR'S.
I hope to have the '88 running well for my son when he returns from basic training.

Look at the top of any page for the Ogre's cave link. He has a well written and illustrated procedure for doing the timing gears on the 4 cylinder engines.

quote Originally posted by avengador1: Look at the top of any page for the Ogre's cave link. He has a well written and illustrated procedure for doing the timing gears on the 4 cylinder engines.

From memory,

"power train",,,,"engine",,,, "4-cylinder",,,, "cam gears".

Much easier to do if the cradle is out otherwise you need to tilt cradle down in the rear and go in through the wheel well. I'm from old school so if it ain't broke, I sure wouldn't mess with it unless gears really needed replacement but you'll see that as you replace the gear cover gasket.

Here is the forum thread that theogre refers to in his write up. (I had it bookmarked)
https://www.fiero.nl/forum/A...020825-2-018751.html

My 88 Duke engine had steel gears, don't know if that was something from factory or if previous owner had something to do with that. My difficulties were elsewhere so I replaced with a long block that came assembled with the synthetic coated gear.

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jetman
Silver 86 SE 2M6 4-speed, with "check wallet light"
Now fortified with 8 essential slices of bacon goodness

The metal gear is far superior ,, but the work space is cramped and you may want to wait to do this ..If you drive in a "spirited" maner replace,, the fibre gear is long lived,, if the car is not driven hard ..
Examine the gears when the cover is off and you can decide,, an 86 or earlier requires the gear more often,, any damage!! replace .. any horse power increase replace now
The fiero store has this part..
Use extreme care when working on the metal cover .. the flange part that goes against the block should be checked with a flat surface ..If you have a gasket leak and you find a new gear inside or metal gear the cover has been off and was not checked ,,Also check bolts for tightness often a leak here or at the oil pan is because of a lose bolt..if you have a gasket leak some time you can install a larger washer under the bolt and it will provide additional pressure to stop leak..with out removal..
If replaceing OIL seal lay cover in full sun to heat it for 30 minutes,, brace cover well ,, place water in seal to cool then drive seal with a piece of plastic pipe or large socket ..If the seal is very difficult to remove cut seal with out damage to cover and remove some times it will come out easy but 50% of time seal has become part of cover ,, you can use punch to drive first 1/4 inch by striking at different areas around seal

[This message has been edited by uhlanstan (edited 07-08-2008).]

quote Originally posted by jetman: From memory, "power train",,,,"engine",,,, "4-cylinder",,,, "cam gears". Much easier to do if the cradle is out otherwise you need to tilt cradle down in the rear and go in through the wheel well. I'm from old school so if it ain't broke, I sure wouldn't mess with it unless gears really needed replacement but you'll see that as you replace the gear cover gasket. Here is the forum thread that theogre refers to in his write up. (I had it bookmarked) https://www.fiero.nl/forum/A...020825-2-018751.html My 88 Duke engine had steel gears, don't know if that was something from factory or if previous owner had something to do with that. My difficulties were elsewhere so I replaced with a long block that came assembled with the synthetic coated gear.

WOW, just WOW.... 6 years ago I did that, its an honor to be bookmarked

Here's a pic of the gears, yes it's upside down.


If your motor has 100,00 plus and you think the gears are original do it now as the fiber gear lasts about 100,000 and not much more from what I've heard.

I did mine out of the car on an engine stand and it was still a 3 on a 1 to 5 scale of difficulty what with having to pull the cam and have the old gear pressed off and the new one back on.

Steve