Seized thermostat housing

 
Post new topic   Reply to topic    The Land Rover Club Forum Index // Series 3 Mechanicals
View previous topic :: View next topic  
Author Message
Peter49
Chatterbox
Chatterbox


Joined: 02 Oct 2017
Posts: 21
Location: Uttoxeter

PostPosted: Sun Jul 01, 2018 3:21 pm    Post subject: Seized thermostat housing Reply with quote
The upper and lower sections of the thermostat housing on my S3 two and a quarter petrol are seized solid, plus one of the studs. The top section 527109 is listed as out of stock by every supplier I've looked at - so if anyone has a new or recycled housing (516509 and 527109) or just the top section (as the bottom is available) I'll be pleased to buy it, until then we're VOR. Thanks
Back to top
View user's profile Send private message
Alan Drover
Super user
Super user


Joined: 31 Oct 2013
Posts: 1050
Location: North West Hampshire

PostPosted: Sun Jul 01, 2018 4:29 pm    Post subject: Reply with quote
Have you tried heating it?
_________________
Alan Drover.
1975 SWB hardtop with a 2.5 petrol engine, overdrive, front disc brakes, parabolic springs, hand throttle, Defender doors and Wolf wheels.
Also a 1977 Stage 2 MGB GT.
Back to top
View user's profile Send private message
Peter49
Chatterbox
Chatterbox


Joined: 02 Oct 2017
Posts: 21
Location: Uttoxeter

PostPosted: Sun Jul 01, 2018 4:35 pm    Post subject: Reply with quote
Yes, tried heat treatment. I won't throw it away as its no longer available, a machine shop can probably refurbish it but to complete the refurb, just trying to find one for now.
Back to top
View user's profile Send private message
Alan Drover
Super user
Super user


Joined: 31 Oct 2013
Posts: 1050
Location: North West Hampshire

PostPosted: Sun Jul 01, 2018 5:03 pm    Post subject: Reply with quote
Can you get a couple of nuts on the stud, lock them together and try and extract the stud? Coca Cola contains phosphoric acid (true) so try dribbling some down the stud.
Before reassembling smear the studs with copper grease to avoid any electrolytic reaction between the steel stud and the aluminium housings.
Try heating again and tapping the housing with a soft headed hammer.
_________________
Alan Drover.
1975 SWB hardtop with a 2.5 petrol engine, overdrive, front disc brakes, parabolic springs, hand throttle, Defender doors and Wolf wheels.
Also a 1977 Stage 2 MGB GT.
Back to top
View user's profile Send private message
Peter49
Chatterbox
Chatterbox


Joined: 02 Oct 2017
Posts: 21
Location: Uttoxeter

PostPosted: Mon Jul 02, 2018 9:22 am    Post subject: Reply with quote
Thanks - my garage has this and they've tried all the tricks they know, but I'll pass these on too.
Back to top
View user's profile Send private message
Peter49
Chatterbox
Chatterbox


Joined: 02 Oct 2017
Posts: 21
Location: Uttoxeter

PostPosted: Mon Jul 02, 2018 3:34 pm    Post subject: Reply with quote
I'm trying the coca cola. Do you know what thread type/size the studs are? Two are OK but the seized one's head is a bit burred.
Back to top
View user's profile Send private message
Alan Drover
Super user
Super user


Joined: 31 Oct 2013
Posts: 1050
Location: North West Hampshire

PostPosted: Mon Jul 02, 2018 4:15 pm    Post subject: Reply with quote
Not sure about the thread size but it may be the same as the manifold studs on the head.
You have to give the Coca Cola time.
_________________
Alan Drover.
1975 SWB hardtop with a 2.5 petrol engine, overdrive, front disc brakes, parabolic springs, hand throttle, Defender doors and Wolf wheels.
Also a 1977 Stage 2 MGB GT.
Back to top
View user's profile Send private message
Peter49
Chatterbox
Chatterbox


Joined: 02 Oct 2017
Posts: 21
Location: Uttoxeter

PostPosted: Mon Jul 02, 2018 5:53 pm    Post subject: Reply with quote
Now in 2 pieces! Thanks, coca cola and patient tapping using a blunt nail to ream it out. The studs are a very tight fit so I'll use a chain saw rat tailed file to ream out the corrosion.
Back to top
View user's profile Send private message
Alan Drover
Super user
Super user


Joined: 31 Oct 2013
Posts: 1050
Location: North West Hampshire

PostPosted: Mon Jul 02, 2018 7:00 pm    Post subject: Reply with quote
Well done. Don't forget to smear copper grease on the studs before replacement. If you can get the studs out then it would be best to replace them.
Hope you are not going to drink the rest of the Coca Cola after seeing what it's done to corrosion!
_________________
Alan Drover.
1975 SWB hardtop with a 2.5 petrol engine, overdrive, front disc brakes, parabolic springs, hand throttle, Defender doors and Wolf wheels.
Also a 1977 Stage 2 MGB GT.
Back to top
View user's profile Send private message
Peter49
Chatterbox
Chatterbox


Joined: 02 Oct 2017
Posts: 21
Location: Uttoxeter

PostPosted: Mon Jul 02, 2018 8:09 pm    Post subject: Reply with quote
Agreed, I've ordered some more, UNF threads. Cola cleaned the whole piece up very nicely. Light blue paint revealed.
Back to top
View user's profile Send private message
Geoff2
Super user
Super user


Joined: 24 Aug 2015
Posts: 489
Location: Leicester

PostPosted: Tue Jul 03, 2018 12:58 pm    Post subject: Reply with quote
Glad to see someone has found some use for Coca Cola.
_________________
2 1981 Stage One 109 V8 Station Wagons
Back to top
View user's profile Send private message
Alan Drover
Super user
Super user


Joined: 31 Oct 2013
Posts: 1050
Location: North West Hampshire

PostPosted: Tue Jul 03, 2018 3:06 pm    Post subject: Reply with quote
Geoff,it's good for removing limescale as Mrs. D will testify.
In the pub at lunchtime today the landlord squirted something out of the multi dispenser for Coca cola etc and cleaned round the mounting on the bar for the dispenser.
_________________
Alan Drover.
1975 SWB hardtop with a 2.5 petrol engine, overdrive, front disc brakes, parabolic springs, hand throttle, Defender doors and Wolf wheels.
Also a 1977 Stage 2 MGB GT.
Back to top
View user's profile Send private message
BigJohn
Super user
Super user


Joined: 16 Jan 2006
Posts: 1803
Location: Vale of Glamorgan - South Wales

PostPosted: Tue Jul 03, 2018 4:27 pm    Post subject: Reply with quote
And just think - People are actually drinking that stuff!!!!!

Give me beer anytime Very Happy
_________________
110 CSW 2.5 Petrol.

Member 9329 (re-joined the club)
Back to top
View user's profile Send private message Visit poster's website
Geoff2
Super user
Super user


Joined: 24 Aug 2015
Posts: 489
Location: Leicester

PostPosted: Wed Jul 04, 2018 5:52 am    Post subject: Reply with quote
Quote:
Give me beer anytime


I'll second that
_________________
2 1981 Stage One 109 V8 Station Wagons
Back to top
View user's profile Send private message
Post new topic   Reply to topic    The Land Rover Club Forum Index // Series 3 Mechanicals All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum