Stef's 7A-FE Rebuild, up and running since 12/16/07 |
Stef's 7A-FE Rebuild, up and running since 12/16/07 |
Sep 11, 2007 - 6:13 PM |
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Enthusiast Joined Mar 3, '04 From Portsmouth, RI Currently Offline Reputation: 33 (100%) |
So obviously my oil problem is only getting worse, I decided it's finally time to do something about it.
so I went and picked up Defgeph's old 7A... 177,000 miles and was begining to use some oil before he swapped and it sat in the garage for 2 years. but since I was getting it for free from a friend I decided to pick it up and hope for the best... so I picked it up Fri (8/24) and the next day it came with me to work (I work at a Toyota dealer) where they unloaded it into the brake lathe room and it stayed hidden for a while. this past Saturday (9/8) me and one of the techs began tearing it apart. I was pleasantly surprised to find that it is actually in incredibly good condition for its age... I will be spending close to $500 in parts replacing every bearing, seal, gasket, etc that we can think of. What I need from you guys are your suggestions as to what I can do to make this motor a little stronger and better flowing. I'm keeping the stock pistons and considering bigger cams and having the head machined. We work for about an hour each morning before customers start coming in. Between Sat, Mon, and Tues (today) we have everything pretty much apart (except for the valves since I haven't decided to send them to the machinist with the head or not yet). This is a huge learning process for me and happy to have the oppotunity to do it. I'll add more pics and info so maybe some of you can learn some things too. This post has been edited by hurley97: Mar 6, 2008 - 9:09 PM -------------------- |
Sep 12, 2007 - 9:49 AM |
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Enthusiast Joined Dec 16, '02 From New York Currently Offline Reputation: 4 (100%) |
Steff I'm really excited to read this thread as you do this rebuild.
My request is a pic of how clean Jeff's engine is. Also- did they figure out why his was burning oil? -------------------- Buy my Celica $2,500 - http://www.6gc.net/forums/index.php?showtopic=76562&st=0
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Sep 12, 2007 - 6:28 PM |
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Enthusiast Joined Mar 3, '04 From Portsmouth, RI Currently Offline Reputation: 33 (100%) |
QUOTE(ILuvMyCelica95 @ Sep 12, 2007 - 10:49 AM) [snapback]595394[/snapback] Also- did they figure out why his was burning oil? yes. things that were wrong with the engine: 1. the oil control rings were just old and worn and got gummed up with oil so they sunk into the piston and since they didn't sit where they should oil just went right past them and got burned on the cylinder walls. the oil control rings... sit in the bottom groove of the pistons... and are held in place by another ring similar to the compression rings (shown below. they go in the two top grooves in the orientation shown) but are a little thinner 2. the thrust bearing was a little worn and had some play. this was just due to the added strain on the crank from it being attached to a manual transmission. the thrust bearing... sits on either side of that middle seat in the grooves on either side all the other bearings and seals were in pretty good shape, although I am still going to replace them all -------------------- |
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