Elise Thermostat Replacement - Page 5 - LotusTalk - The Lotus Cars Community
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post #81 of 88 (permalink) Old 04-23-2019, 05:11 PM
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Quote:
Originally Posted by FistHammer View Post
Not sure if you know this but I read in a thread there is a 17mm bolt head cast into the arm holding the tensioner, I believe you use this to make it easier, you may already be doing this. see it in the center of the arm below the bolt hole.

This photo looks upside-down from the way the arm sits in the car. The cast-in hex is above the pivot point.

On my 23005 Elise that cast-in hex is a 19mm. I used a 12-point 3/4" socket I had because it was shorter than the other 19mm and 3/4" sockets I had. The longer 9mm and 3/4" sockets I had, on my 24" breaker bar, would not fit in the space. 3/4" is 19.05mm. 19mm is .748".

As has been noted, working from below with a long breaker bar seems to be the way to release the tensioner to get the belt off and on.

Phil Ethier Minnesota USA
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post #82 of 88 (permalink) Old 04-23-2019, 05:52 PM
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Originally Posted by philethier View Post
In the same jacking, can I replace my rear motor mount?
I did replace the rear mount with the BOE competition model. Good thing, as the stock one had started to fail. When I get to it, I will post pix in a different thread.

Phil Ethier Minnesota USA
1973 Triumph Stag LE22439UBW "uncle jack", Sapphire Blue
2004 Suburban 8.1, Sport Red
2005 Lotus Elise, Bordeaux Red Pearl
2017 Ford Fusion (wife had to stop driving manual due to shoulder problem), Oxford White.
2006 Gulf Stream Conquest Super C
http://www.mnautox.com

Last edited by philethier; 04-26-2019 at 05:39 AM.
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post #83 of 88 (permalink) Old 05-19-2019, 08:41 AM
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Mythical Thermostat discovered

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Originally Posted by quattro574 View Post
If you find a 46128 let me know where. I searched high and low and reached out to Stant. They couldn't even find me one. I ordered what was listed as a Stant 46128 on Rock Auto. Turned out to be a gas cap.
I did a search with cross referencing to see if there was another good thermostat choice for a 2ZZ-GE car. That lead me back to the Stant 46128, which is supposed to be the Superstat model for the 2ZZ-GE. I've installed Superstats on both the Ford 4.6 modular engine in the Grand Pimp and the 5S-FE in the '92 Celica (which also had a slow warm up issue) and have commendably quick warm ups with extremely consistent coolant temp once up to operating temp.

With the light loading of the 2ZZ in a sub-2000 lb car, getting quicker warm ups is a good idea. Rock Auto listed the right part with the right picture, so I took the leap and ordered one. Don't know if it's any different than their generic part, but it at least has the right number on the box and isn't a gas cap. Will be installing this coming winter, probably, unless I have a reason to go into the cooling system sooner.
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post #84 of 88 (permalink) Old 05-19-2019, 09:30 AM
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Are you sure you want to install that Stant? It looks like it has the dreaded rubber seal around the flapper valve which normally fails and sticks the thermostat open. That is what happened to mine! IMHO, all metal are the only way to go....

Edit: I may be wrong about it having the rubber seal but that is what the picture looks like. Sorry if I got it wrong.

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Last edited by InfernoLotus; 05-19-2019 at 09:32 AM. Reason: added content
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post #85 of 88 (permalink) Old 05-19-2019, 10:00 AM
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Originally Posted by InfernoLotus View Post
Are you sure you want to install that Stant? It looks like it has the dreaded rubber seal around the flapper valve which normally fails and sticks the thermostat open. That is what happened to mine! IMHO, all metal are the only way to go....

Edit: I may be wrong about it having the rubber seal but that is what the picture looks like. Sorry if I got it wrong.
Looks like the seal is there. I would not take the chance. Metal-to-metal is good for me. I installed a MotoRad and it has been great so far.

Phil Ethier Minnesota USA
1973 Triumph Stag LE22439UBW "uncle jack", Sapphire Blue
2004 Suburban 8.1, Sport Red
2005 Lotus Elise, Bordeaux Red Pearl
2017 Ford Fusion (wife had to stop driving manual due to shoulder problem), Oxford White.
2006 Gulf Stream Conquest Super C
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post #86 of 88 (permalink) Old 05-19-2019, 10:33 AM
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BRGELISE stated on the 2nd page of this post:

"I go get a Stant 14078 thermostat (it was the only one they had). This was the lowest cost/grade. It was the one without a rubber seal and jiggle pin. The premium ones had the rubber seals in the picture."

So it sounds like we should not step up to premium... LOL, marketing people...

2005 Chrome Orange Elise, BWR supercharger, TR Motorsport F1 rims and R888s, Nitron NTR40 Single Adjustables with Eibach springs,Sector 111 308BBL brakes, BWR Silent Touch exhaust, CF side scoops, front splitter, and engine cover.
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post #87 of 88 (permalink) Old 05-19-2019, 11:48 AM
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Yes, I installed a 170 degree MotoRad, the seal is metal to metal, and has worked perfectly so far. It dropped my coolant temp around 15 degrees from the stock one, that is normal driving and track as well. They are a pita to replace, so do it right the first time. 👍😄

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post #88 of 88 (permalink) Old 05-23-2019, 08:35 PM
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Yes, I am going to post my installation pictures. Eventually.

I'm deep into a motorhome project and it is sucking my time for other stuff.

Phil Ethier Minnesota USA
1973 Triumph Stag LE22439UBW "uncle jack", Sapphire Blue
2004 Suburban 8.1, Sport Red
2005 Lotus Elise, Bordeaux Red Pearl
2017 Ford Fusion (wife had to stop driving manual due to shoulder problem), Oxford White.
2006 Gulf Stream Conquest Super C
http://www.mnautox.com
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