203* Install Tips
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
I didn't do it when I put mine on but the next time I have mine off I am going to replace the bolts I recommend it personally. Next time I am going to go with hardened socket head bolts.
Maybe someone knows off the top what size they are so you can just go buy them and have them ready when you do it.
Maybe someone knows off the top what size they are so you can just go buy them and have them ready when you do it.
Post Fiend
Joined: Feb 2007
Posts: 7,191
Likes: 4
From: Blairsville,Ga
Originally Posted by monsterbaby
I didn't do it when I put mine on but the next time I have mine off I am going to replace the bolts I recommend it personally. Next time I am going to go with hardened socket head bolts.
Maybe someone knows off the top what size they are so you can just go buy them and have them ready when you do it.
Maybe someone knows off the top what size they are so you can just go buy them and have them ready when you do it.
Post Fiend
Joined: Jun 2006
Posts: 9,714
Likes: 2
From: White Mnt's,New Hampshire
i am almost sure they are a 9mm bolt....i had to get 2 but that was over a year ago..tryed to find the slip to make sure..but its lost..i thought when i get a new pump..id put studs in them...
Last edited by ron's power stoke; Nov 2, 2007 at 07:36 PM.
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Junior User
Joined: Mar 2007
Posts: 83
Likes: 0
i have the 203 thermostat but have problems installing b/c the stock o ring does not seem to work or seal well. searched numerous auto parts stores for an o ring that is grooved but no luck.
so is this billetr housing the answer i'm looking for? based on the responses it seems i need this, plus some new 9mmm bolts. does it come with a o ring? anything else i need? thanks!
so is this billetr housing the answer i'm looking for? based on the responses it seems i need this, plus some new 9mmm bolts. does it come with a o ring? anything else i need? thanks!
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Post Fiend
Joined: Jun 2006
Posts: 9,714
Likes: 2
From: White Mnt's,New Hampshire
any new T stat has a new o-ring with it..the stock housing some times will not seal right when reused..i have the Billet Aluminum housing and like it very much... http://www.dieselsite.com/index.asp?...ROD&ProdID=186http://www.dieselsite.com/index.asp?...ROD&ProdID=188
Logistics Pro
Joined: Aug 2005
Posts: 3,884
Likes: 180
From: Morgan Hill, CA
Here's a tip. Use a pick or something fairly sharp to dig the crud out of the recessed square O-Ring bore. Then use some 320 sandpaper to really clean it out good. You should not need any silicone to get it to seal if properly prepared.