Thermostat cross over

 Created by: Gromit
Orig. Posting Date User Name Edit Date
Jun 8, 2019 06:28AM Dan Moffet  
Jun 6, 2019 09:24AM dklawson  
Jun 6, 2019 06:28AM Dan Moffet Edited: Jun 6, 2019 06:35AM 
Jun 5, 2019 02:23PM Hunter2  
Jun 5, 2019 09:40AM dklawson  
Jun 5, 2019 08:27AM Gromit  
Jun 5, 2019 06:22AM malsal Edited: Jun 5, 2019 08:55AM 
Jun 5, 2019 03:43AM dklawson  
Jun 4, 2019 02:13PM malsal Edited: Jun 5, 2019 06:21AM 
Jun 4, 2019 10:56AM croc7 Edited: Jun 4, 2019 10:57AM 
Jun 4, 2019 10:36AM malsal Edited: Jun 4, 2019 11:14AM 
Jun 4, 2019 09:56AM Gromit  
   Forum Width:     Forum Type: 

 Posted: Jun 8, 2019 06:28AM
Total posts: 8173
Last post: Jun 20, 2019
Member since:Aug 14, 2002
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
CA
I should clarify: the round end of the ball-pein hammer or screwdriver handle is used very gently - enough to make a crease in the underside of the gasket material. Use of the vise is just to keep the part steady.

.

"Hang on a minute lads....I've got a great idea."

 Posted: Jun 6, 2019 09:24AM
Total posts: 8965
Last post: Jun 24, 2019
Member since:Jun 5, 2000
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
US
Though I have used the ball-peen method I never liked it.  I worry I'll damage the parts by using the hammer.  

Instead, I prefer to place the part (t-stat housing) on a sheet of gasket paper and use pencil to trace the perimeter and the mounting holes.  After cutting out the perimeter with scissors I use a hole punch to make the mounting bolt holes (a little on the tight side).  Then I place the un-finished gasket on the t-stat housing and use bolts to align the paper with the part.  A quick series of short cuts with an X-Acto knife completes the gasket. YMMV  

All that being said, when I recently wanted to make a couple of gaskets I had to spray my roll of gasket paper with WD-40 and let it sit for a while to "soften up".  It had been sitting on the shelf so long it felt like it was going to crack just from unrolling it.

Doug L.
 Posted: Jun 6, 2019 06:28AM
 Edited:  Jun 6, 2019 06:35AM
Total posts: 8173
Last post: Jun 20, 2019
Member since:Aug 14, 2002
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
CA
Quote:
Originally Posted by dklawson
Quote:
Originally Posted by malsal
Good to know Doug, is the gasket the same also?
I have no idea about the gasket.  I always cut my own from gasket paper.
+1 !!

If you have never cut a gasket, the easy way to mark the gasket material for cutting is to place the T'stat housing in a vise (after cleaning it) with the mating surface up. hold the gasket material snugly over the surface and very gently tap with a small ball-pein hammer or the rounded end of a screwdriver handle to gently emboss the housing holes into the gasket sheet. I like to do the mounting holes first, then cut them out and use 3 bolts to keep it in position before doing the main opening. If your housing is in good shape, you can also mark out the exterior profile.

.

"Hang on a minute lads....I've got a great idea."

 Posted: Jun 5, 2019 02:23PM
Total posts: 6456
Last post: Jun 5, 2019
Member since:Nov 2, 2006
Cars in Garage: 4
Photos: 1354
WorkBench Posts: 2
CA
I use a Mr. Gasket thermostat...last year instatesd a Gates...did NOT open at 190 F.

 Posted: Jun 5, 2019 09:40AM
Total posts: 8965
Last post: Jun 24, 2019
Member since:Jun 5, 2000
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
US
Quote:
Originally Posted by malsal
Good to know Doug, is the gasket the same also?
I have no idea about the gasket.  I always cut my own from gasket paper.

Doug L.
 Posted: Jun 5, 2019 08:27AM
Total posts: 140
Last post: Jun 5, 2019
Member since:Jan 28, 2015
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
Thanks! That will make the trip easier :)

 Posted: Jun 5, 2019 06:22AM
 Edited:  Jun 5, 2019 08:55AM
Total posts: 8035
Last post: Jun 24, 2019
Member since:Feb 7, 2006
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
Quote:
Originally Posted by dklawson
The later Midget t-stat also work, even those for the 1500.  
Good to know Doug, is the gasket the same also?


If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: Jun 5, 2019 03:43AM
Total posts: 8965
Last post: Jun 24, 2019
Member since:Jun 5, 2000
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
US
The later Midget t-stat also work, even those for the 1500.  

Doug L.
 Posted: Jun 4, 2019 02:13PM
 Edited:  Jun 5, 2019 06:21AM
Total posts: 8035
Last post: Jun 24, 2019
Member since:Feb 7, 2006
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
Quote:
Originally Posted by croc7
Small block Chevy t'stats work, or one for a mid 70's Midget.  And while you're at the local parts store, buy some gasket material and make your own.
I think 74 is the last year a Midget stat will work. In 75 they switched over to the Triumph 1500 engine for emission purposes i am not sure if that one is interchangeable.


If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: Jun 4, 2019 10:56AM
 Edited:  Jun 4, 2019 10:57AM
Total posts: 700
Last post: Jun 19, 2019
Member since:Aug 15, 2002
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
US
Small block Chevy t'stats work, or one for a mid 70's Midget.  And while you're at the local parts store, buy some gasket material and make your own.

 

"To catch one, you need one"....John Cooper

 Posted: Jun 4, 2019 10:36AM
 Edited:  Jun 4, 2019 11:14AM
Total posts: 8035
Last post: Jun 24, 2019
Member since:Feb 7, 2006
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
Quote:
Originally Posted by Gromit
Hi There. I remember a discussion years ago about equivalent Thermostats for use in classic Minis. I vaguely recall a certain GM thermostat and gasket fit.. does anyone recall this? I'd rather go to the local parts store and grab one as opposed to having to order online.
73 MG Midget thermostat and gasket will work.
The GM thermostat is the one used in a small block 350 cu in Chevy but the gasket won't work.


If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: Jun 4, 2019 09:56AM
Total posts: 140
Last post: Jun 5, 2019
Member since:Jan 28, 2015
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
Hi There. I remember a discussion years ago about equivalent Thermostats for use in classic Minis. I vaguely recall a certain GM thermostat and gasket fit.. does anyone recall this? I'd rather go to the local parts store and grab one as opposed to having to order online.