Heater core blew up - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old May 27th, 2016, 08:56 AM
o2batsea's Avatar
o2batsea
Status: Online
Bill Adams
66 109 sw 94 lwb
Member
 
Join Date: Jul 2009
Location: kensington md
Posts: 6,505
Registry
Heater core blew up

Driving in to the office this morning in the Loob. Just as I was getting to the Zoo the core let go spewing all over my shoes and making the inside of the truck a cappuccino machine.
Fortunately the 7 Eleven across the street from the Zoo entrance had anti freeze (!) and water, so only a short walk to get help. Ran a bypass hose on the heater pipes and got back under way.
Now it seems to be running hot. I guess I still have an air pocket somewhere and it's cavitating the water pump? Dunno.
Carpets soaked,
__________________
Bill Adams

1966 109 5 door wagon 300Tdi "spermaceti fueled"
1994 RRC LeWiB "ruining the air behind me"
1968 2A 88

All my troubles are Rover
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old May 27th, 2016, 09:15 AM
Rocky's Avatar
Rocky
Status: Online
Chris
72 + D1 drivetrain
Member
 
Join Date: Sep 2006
Location: Colonies Aka Boston
Posts: 8,791
You need to burp the cooling system to evacuate the air.
And its time for you to enter "The Matrix".
Reply With Quote
  #3  
Old May 27th, 2016, 09:38 AM
Sergeant_V's Avatar
Sergeant_V
Status: Offline
Abel Villesca
1995 D-90 ST
Member
 
Join Date: Nov 2004
Location: Albuquerque, NM, US
Posts: 419
Happened to me in my '94 SWB this time last year in Moab ..... on the same street as the NAPA ... and the liquor store. Fortune kicked me in the butt, but was smiling when doing so.
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old May 27th, 2016, 09:42 AM
Uncle Douglas's Avatar
Uncle Douglas
Status: Offline
Doug Crowther
A defender in every driveway-motto
D-90 Source Vendor
 
Join Date: Dec 2007
Location: Gods Country- Central Virginia
Posts: 11,841
Registry
That job is a mother as you could tell from the pictures I sent you last winter.
The heater core and blower motor package deal from AB is the way to go. The close to 60 pages of instructions
on how to do the job help. You do not have to remove the drivers door or steering columns , but pretty much everything else does have to come out.

My daughter sent me a text that she had to add coolant to mine, I'm afraid the same is about to happen.

The biggest pain was getting the 5 different flap valves to all seat back properly when putting the two halves of the heater box back together.
There are two in the very middle of the box that gave me hell for hours
__________________
Good judgement comes from experience,experience comes from bad judgement.

Dividing Creek Imports
Worldwide Vehicle Shipment and Importation Service
Restoration & Modification work


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

410.693.1391


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #5  
Old May 27th, 2016, 09:45 AM
Kevin88RRC's Avatar
Kevin88RRC
Status: Offline
Kevin Keith
1988 RRC
Member
 
Join Date: Dec 2014
Location: Portland, Maine
Posts: 1,045
That sucks... at least you have 4-6 months before winter returns. They can be a pain to get all the air out.
After parting out my old classic, I think LR built the whole thing around the heater core. Basically the whole dash has to come out to get to it.
Reply With Quote
  #6  
Old May 27th, 2016, 10:30 AM
belgian's Avatar
belgian
Status: Offline
Maxim
1995 RRC SWB
Member
 
Join Date: Jan 2011
Location: Virginia
Posts: 329
I have to do this job as well on my '92...
And I remember that Rob also has a similar job on his project truck (unless he already did it).
Ours are just frozen blower motors though... but might as well do the core while we are at it.

I vote a wrenching weekend at his barn, to fix all 3 trucks. ha
__________________
1984 Camel Trophy 110
1995 Range Rover Classic SWB
1992 Range Rover Classic SWB
Reply With Quote
  #7  
Old May 27th, 2016, 10:56 AM
o2batsea's Avatar
o2batsea
Status: Online
Bill Adams
66 109 sw 94 lwb
Member
 
Join Date: Jul 2009
Location: kensington md
Posts: 6,505
Registry
Yup, not a fun chore. I have a couple heater units floating around and a brand new core someplace...
__________________
Bill Adams

1966 109 5 door wagon 300Tdi "spermaceti fueled"
1994 RRC LeWiB "ruining the air behind me"
1968 2A 88

All my troubles are Rover
Reply With Quote
  #8  
Old May 27th, 2016, 11:18 AM
Uncle Douglas's Avatar
Uncle Douglas
Status: Offline
Doug Crowther
A defender in every driveway-motto
D-90 Source Vendor
 
Join Date: Dec 2007
Location: Gods Country- Central Virginia
Posts: 11,841
Registry
Quote:
Originally Posted by belgian View Post
I have to do this job as well on my '92...
And I remember that Rob also has a similar job on his project truck (unless he already did it).
Ours are just frozen blower motors though... but might as well do the core while we are at it.

I vote a wrenching weekend at his barn, to fix all 3 trucks. ha
If you can do three in a weekend you are a better man than I.

Just the retrofit of the aftermarket heater motor takes some careful modification of the plastic heater box and then putting it back together with the new core was hours.

Not a difficult job just a slow meticulous one
__________________
Good judgement comes from experience,experience comes from bad judgement.

Dividing Creek Imports
Worldwide Vehicle Shipment and Importation Service
Restoration & Modification work


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

410.693.1391


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #9  
Old May 27th, 2016, 11:29 AM
belgian's Avatar
belgian
Status: Offline
Maxim
1995 RRC SWB
Member
 
Join Date: Jan 2011
Location: Virginia
Posts: 329
Quote:
Originally Posted by Uncle Douglas View Post
If you can do three in a weekend you are a better man than I.

Just the retrofit of the aftermarket heater motor takes some careful modification of the plastic heater box and then putting it back together with the new core was hours.

Not a difficult job just a slow meticulous one
And... the location just changed to Dougs barn. ha

Just clarifying, I wasn't suggestion I would change all 3, ha. 3 people, 3 trucks.. at the same time.
__________________
1984 Camel Trophy 110
1995 Range Rover Classic SWB
1992 Range Rover Classic SWB
Reply With Quote
  #10  
Old May 27th, 2016, 12:03 PM
Kevin88RRC's Avatar
Kevin88RRC
Status: Offline
Kevin Keith
1988 RRC
Member
 
Join Date: Dec 2014
Location: Portland, Maine
Posts: 1,045
Quote:
Originally Posted by JSBriggs View Post
The earlier heater boxes are better (steel). When the core in my 1990 shit the bed, I put the box and rebuilt box and core from an 87 in there. The foam on the flapper doors was deter primates, so I replaced the foam with closed cell foam and it sealed much better. Because the core in a RRC is constant flow, air leaks in the box will result in a warm cabin.

-Jeff
If it wasn't such a PITA, I would love to pull mine & recondition it. So much air flows through it which is both anoying in the summer & the winter. I have one pulled from my old '88 that I should recondition for when the time comes.
Reply With Quote
  #11  
Old May 27th, 2016, 01:33 PM
Ren Ching's Avatar
Ren Ching
Status: Offline
Skinny Pete
'84 90 "Yamelo"/'88 RRC "Chewbacca"
Member
 
Join Date: Mar 2007
Location: Downtown
Posts: 4,696
Registry
Sorry about the heater core. Not a dig at you at all Bill, but you gotta love those "bargain" RRCs with 100K+ miles and ticking time bombs under the hood and behind the dash. But every CB thinks you can spend $4k+ on fixing all that stuff and the truck is somehow still only worth $2500. Lol...

If the coolant looked like something you get at Starbucks, then perhaps there are other problems. I can bring the block tester kit over if you want.

When did you start working at the Zoo?


Quote:
Originally Posted by o2batsea View Post
Driving in to the office this morning in the Loob. Just as I was getting to the Zoo the core let go spewing all over my shoes and making the inside of the truck a cappuccino machine.
Fortunately the 7 Eleven across the street from the Zoo entrance had anti freeze (!) and water, so only a short walk to get help. Ran a bypass hose on the heater pipes and got back under way.
Now it seems to be running hot. I guess I still have an air pocket somewhere and it's cavitating the water pump? Dunno.
Carpets soaked,
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Present:
1960 SII 109"- "Red Square"
1984 90 Tdi- "Yamelo"
1988 RRC- "Chewbacca"
1987 RRC- "Chewy 2"
2008 RRS SC- "The Supersofa"

Past:
1959 SII 88"- "The Little Green Beastie" last seen in NY
1972 SIII 88"- "GreenHELL" now in NC
1988 90 "Eric the Half a Bee" half a truck, sold for parts
1991 RRC- never got a name- long since recycled
Reply With Quote
  #12  
Old May 27th, 2016, 03:58 PM
o2batsea's Avatar
o2batsea
Status: Online
Bill Adams
66 109 sw 94 lwb
Member
 
Join Date: Jul 2009
Location: kensington md
Posts: 6,505
Registry
Ok it's overheating with the heater hose bypassed
__________________
Bill Adams

1966 109 5 door wagon 300Tdi "spermaceti fueled"
1994 RRC LeWiB "ruining the air behind me"
1968 2A 88

All my troubles are Rover
Reply With Quote
  #13  
Old May 27th, 2016, 04:03 PM
evilfij's Avatar
evilfij
Status: Offline
evilfij
I have never seen a rover in person
Member
 
Join Date: Oct 2003
Location: on the internet
Posts: 14,688
Quote:
Originally Posted by o2batsea View Post
Ok it's overheating with the heater hose bypassed
Did you bleed it? Did you pump the upper rad hose to make sure it is full of coolant? Did you fill the radiator directly through the plug on top?

If so, you have other issues.
__________________
*not legal advice*
Reply With Quote
  #14  
Old May 27th, 2016, 04:16 PM
Kevin88RRC's Avatar
Kevin88RRC
Status: Offline
Kevin Keith
1988 RRC
Member
 
Join Date: Dec 2014
Location: Portland, Maine
Posts: 1,045
Hope that you still have air in the system..... if not probably HG & the heater core was the weak link.

When bleeding the air from the coolant, I use a tall funnel with a threaded piece of pvc epoxied on & attaches to the rad making it the highest point. Sometimes I raise the front right corner too to help.
Reply With Quote
  #15  
Old May 27th, 2016, 04:59 PM
o2batsea's Avatar
o2batsea
Status: Online
Bill Adams
66 109 sw 94 lwb
Member
 
Join Date: Jul 2009
Location: kensington md
Posts: 6,505
Registry
Yeh I'm filling from the top. I'm limping home now stopped for a cool down now.
__________________
Bill Adams

1966 109 5 door wagon 300Tdi "spermaceti fueled"
1994 RRC LeWiB "ruining the air behind me"
1968 2A 88

All my troubles are Rover
Reply With Quote
  #16  
Old May 28th, 2016, 06:04 AM
o2batsea's Avatar
o2batsea
Status: Online
Bill Adams
66 109 sw 94 lwb
Member
 
Join Date: Jul 2009
Location: kensington md
Posts: 6,505
Registry
Further investigation will probably confirm that this truck is dead. I don't think I'm going to do the repairs on it.
__________________
Bill Adams

1966 109 5 door wagon 300Tdi "spermaceti fueled"
1994 RRC LeWiB "ruining the air behind me"
1968 2A 88

All my troubles are Rover
Reply With Quote
  #17  
Old May 28th, 2016, 06:25 AM
1of40's Avatar
1of40
Status: Offline
1of40
NAS 97SW & 83 One Ten Tdi
Member
 
Join Date: Dec 2003
Location: Potomac Falls & Wintergreen, Virginia
Posts: 6,085
Registry
Quote:
Originally Posted by o2batsea View Post
Further investigation will probably confirm that this truck is dead. I don't think I'm going to do the repairs on it.
Damn, sorry to hear that Bill. We're fluids fresh and temps normal otherwise?
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #18  
Old May 28th, 2016, 08:55 AM
Sergeant_V's Avatar
Sergeant_V
Status: Offline
Abel Villesca
1995 D-90 ST
Member
 
Join Date: Nov 2004
Location: Albuquerque, NM, US
Posts: 419
That's bad news and I definitely feel your pain. My SWB is in for a headgasket replacement.
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Tags
heater

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Blew u-joint in rear, help on 4 bolts removal on brake drum UpnOver Defender Technical Discussions 3 February 2nd, 2012 07:53 PM
heater matrix heater core. Naplm00 Wanted 0 December 21st, 2011 01:34 AM
I blew up my tranny, time to work Neil McCauley Defender Technical Discussions 3 August 2nd, 2008 08:35 AM
Looks like my 300 TDi head gasket blew again cdb Defender Technical Discussions 6 July 2nd, 2008 08:27 PM
Help blew my transfer seal ron Defender Technical Discussions 23 November 15th, 2006 01:31 AM


All times are GMT -5. The time now is 03:49 PM.


Copyright