Thanks. Reped you. Jim
Temperature/Heater issue
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
At least don't complain when you have overheating problems in summer because the bypass is wide open.
Post Fiend
Joined: Dec 2007
Posts: 8,521
Likes: 16
From: Lost
The only ones that would matter are the ones that use different size inlet/outlet fittings. Don't think the flow direction matters, but the hose sizes do....... Hard to get a smaller hose on a larger fitting, or get a larger hose to seal on a smaller one.....
Post Fiend
Joined: Dec 2007
Posts: 8,521
Likes: 16
From: Lost
Did not say I recommended using it, just the only ones shown that *appear* to be correct......
I don't care for anything MrG branded either.....
I don't care for anything MrG branded either.....
Post Fiend
Joined: Dec 2007
Posts: 8,521
Likes: 16
From: Lost
Not easy to find the *correct* t-stat for the 351M/400. Sure, the others will work fine in cooler weather, but not so well in hotter weather....... Been there, done that. 351M/400 tends to have overheating issues in hot weather, most often caused by the wrong style t-stat.
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Post Fiend
Joined: Dec 2007
Posts: 8,521
Likes: 16
From: Lost
Just because it "fits", doesn't mean it will work *correctly*.
Thread Starter
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Senior User
Joined: Jan 2011
Posts: 226
Likes: 2
From: Goldthwaite,Tx
I found the Stant PN. 13469 on Summit. Would this be the correct one?http://www.summitracing.com/parts/sn...rd/model/f-150
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
It's not the high flow design but all my information says it has the right cup on the bottom to seal the bypass.
You should be able to purchase it locally.
Just don't let some counter jockey sell you something else.
(because they will try)
You could also look for the Gates brand 33129 that Gary showed in his thread.
You should be able to purchase it locally.
Just don't let some counter jockey sell you something else.
(because they will try)
You could also look for the Gates brand 33129 that Gary showed in his thread.
Thread Starter
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Senior User
Joined: Jan 2011
Posts: 226
Likes: 2
From: Goldthwaite,Tx
So you don't recommend this one?ww.ebay.com/itm/MOTORCRAFT-RT-1139-Thermostat-/290912544878?pt=Motors_Car_Truck_Pa
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
So you don't recommend this one?ww.ebay.com/itm/MOTORCRAFT-RT-1139-Thermostat-/290912544878?pt=Motors_Car_Truck_Pa
Have a look at that Thread I linked with the debate about Robert Shaw 333 series thermostats and see how many people ruined the rear two cylinders because the bypass was left open.
Thread Starter
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Senior User
Joined: Jan 2011
Posts: 226
Likes: 2
From: Goldthwaite,Tx
I've read the other threads that was linked and now I'm looking at
the Stant and the Shaw brands. Those 2 seem to be the way to go unless
a person can get lucky and find a NOS (RT139?) at a Ford dealer?
the Stant and the Shaw brands. Those 2 seem to be the way to go unless
a person can get lucky and find a NOS (RT139?) at a Ford dealer?