Head Gasket Basics - Defender Source
Defender Source  

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


Reply
 
Thread Tools
  #1  
Old May 2nd, 2016, 07:52 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
Head Gasket Basics

Found this write up helpful to read through and thought I'd pass it along.

http://www.enginebuildermag.com/2009...skets-to-fail/
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old May 4th, 2016, 03:49 PM
cbfritz_03
Status: Offline
Carmen
none
Member
 
Join Date: Apr 2014
Location: TX
Posts: 1,520
Thank you. I've been doing lots (and lots) of reading. Started my first top end rebuild on the V8....urgh, so nasty...
Attached Thumbnails
Click image for larger version

Name:	ugh...jpg
Views:	78
Size:	73.2 KB
ID:	148757  
__________________
Car Camping Collective founding member - Badge #88 ...with 4 whole fried chickens and a coke.
Reply With Quote
  #3  
Old May 4th, 2016, 03:52 PM
Z.G's Avatar
Z.G
Status: Offline
Zack
300Tdi 95 D1
Member
 
Join Date: May 2013
Location: Burlington, VT
Posts: 4,684
Registry
Maybe not enough reading... unless you're replacing those push rods, they should have been put in order on a sheet of cardboard
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old May 4th, 2016, 04:02 PM
cbfritz_03
Status: Offline
Carmen
none
Member
 
Join Date: Apr 2014
Location: TX
Posts: 1,520
A babe in the wood that's for sure. Aren't they all the same length? The valve springs will be replaced but not the pushrods. I'm hoping it will be less scary/mysterious on the next one. I have friends with experience on speed dial. Wish me luck. I'm gonna need it...
__________________
Car Camping Collective founding member - Badge #88 ...with 4 whole fried chickens and a coke.
Reply With Quote
  #5  
Old May 4th, 2016, 05:08 PM
sherpamike's Avatar
sherpamike
Status: Offline
Mike Doligalski
'95 D90 ST
Member
 
Join Date: Oct 2003
Location: Tampa, FL
Posts: 625
Registry
There is loads of good advice in various threads on this board (including placing the pushrods in a piece of cardboard that diagrams how/where they go back in). The one thing I didn't read but wish I had before I rebuilt my top end this winter was to pressure wash and degrease everything before disassembly. So much of my work was cleaning years of gunk from the outside of everything.
Reply With Quote
  #6  
Old May 4th, 2016, 06:06 PM
Jymmiejamz's Avatar
Jymmiejamz
Status: Offline
Jimmy
1995 D90 SW #365
Member
 
Join Date: Sep 2010
Location: Brooklyn, NY
Posts: 3,468
Registry
Quote:
Originally Posted by Z.G View Post
Maybe not enough reading... unless you're replacing those push rods, they should have been put in order on a sheet of cardboard
It doesn't matter what order they are in. Of the thousands of head gasket jobs that have been done on Rover V8's, how many do you think were put back in order? Sure, the 'right' way is to put them back in order, but in reality it doesn't matter. I've never put them back in order.
__________________
Car Camping Collective founding member and Treasurer
Reply With Quote
  #7  
Old May 4th, 2016, 06:13 PM
Naplm00
Status: Online
Matthew
1983 110 200tdi 3 door soft top
Member
 
Join Date: Sep 2010
Location: San Jose, California
Posts: 2,866
Quote:
Originally Posted by cbfritz_03 View Post
A babe in the wood that's for sure. Aren't they all the same length? The valve springs will be replaced but not the pushrods. I'm hoping it will be less scary/mysterious on the next one. I have friends with experience on speed dial. Wish me luck. I'm gonna need it...
Just buy a pushrod length checker on amazon, it's an adjustable pushrod you can use to measure the proper needed length and replace if necessary. New pushrods are available in all types from Summit or jegs
Reply With Quote
  #8  
Old May 4th, 2016, 07:12 PM
cbfritz_03
Status: Offline
Carmen
none
Member
 
Join Date: Apr 2014
Location: TX
Posts: 1,520
Will do. I had read and seen vid on the cardboard and in order stuff a long time ago but because the rods don't show any variance or significant wear, I didn't worry about it. To be honest I have to control myself and not pull the whole thing. It doesn't need it and ran great. Once I took the valve covers off I decided to do this...clean it up, replace upper and lower gaskets, hoses, the fan clutch, a few sensors, rebuild the oil pump...etc. I've only had her for a little while....it's maintenance
__________________
Car Camping Collective founding member - Badge #88 ...with 4 whole fried chickens and a coke.
Reply With Quote
  #9  
Old May 4th, 2016, 07:17 PM
Red90's Avatar
Red90
Status: Online
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 9,248
Registry
Plan to do the timing chain as a minimum as it will need it. That is not a well loved engine. Also check the cam is not worn.
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
Reply With Quote
  #10  
Old May 4th, 2016, 07:31 PM
cbfritz_03
Status: Offline
Carmen
none
Member
 
Join Date: Apr 2014
Location: TX
Posts: 1,520
I'm doing the timing chain too. Can you think of anything else...while I'm in there?
__________________
Car Camping Collective founding member - Badge #88 ...with 4 whole fried chickens and a coke.
Reply With Quote
  #11  
Old May 4th, 2016, 10:56 PM
Z.G's Avatar
Z.G
Status: Offline
Zack
300Tdi 95 D1
Member
 
Join Date: May 2013
Location: Burlington, VT
Posts: 4,684
Registry
Quote:
Originally Posted by Jymmiejamz View Post
It doesn't matter what order they are in. Of the thousands of head gasket jobs that have been done on Rover V8's, how many do you think were put back in order? Sure, the 'right' way is to put them back in order, but in reality it doesn't matter. I've never put them back in order.


Probably why yours runs hot!
Reply With Quote
  #12  
Old May 4th, 2016, 11:07 PM
Rocky's Avatar
Rocky
Status: Online
Chris
72 + D1 drivetrain
Member
 
Join Date: Sep 2006
Location: Colonies Aka Boston
Posts: 8,785
You replacing the cam as well? If so that opens up more parts to consider
__________________
A friend of mine runs a land rover / range rover specialty repair shop. Based on his experience, they are capable of stopping anywhere, anytime, at any cost.

I don't know about the brakes, only their unreliability.
Reply With Quote
  #13  
Old May 5th, 2016, 06:57 AM
Jymmiejamz's Avatar
Jymmiejamz
Status: Offline
Jimmy
1995 D90 SW #365
Member
 
Join Date: Sep 2010
Location: Brooklyn, NY
Posts: 3,468
Registry
Quote:
Originally Posted by Z.G View Post
Probably why yours runs hot!
No, thats's because I didn't do the Discomike 90k service.
__________________
Car Camping Collective founding member and Treasurer
Reply With Quote
  #14  
Old May 5th, 2016, 07:14 AM
Nomar's Avatar
Nomar
Status: Offline
Jeff B
RR HNTR,RR LWB Tdi
Member
 
Join Date: Aug 2004
Location: Central,Virginia
Posts: 4,291
Registry
Quote:
Originally Posted by Jymmiejamz View Post
No, thats's because I didn't do the Discomike 90k service.
I just sent him your cell #, he should be calling you shortly!


.
__________________


Real Rovers have round headlights!
Rent my
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
!
Just a few miles from 4x4 access!
Reply With Quote
  #15  
Old May 5th, 2016, 04:37 PM
cbfritz_03
Status: Offline
Carmen
none
Member
 
Join Date: Apr 2014
Location: TX
Posts: 1,520
Quote:
Originally Posted by Rocky View Post
You replacing the cam as well? If so that opens up more parts to consider
Still digging...and yes, more parts. Am thinking a Crower cam...
__________________
Car Camping Collective founding member - Badge #88 ...with 4 whole fried chickens and a coke.
Reply With Quote
  #16  
Old May 6th, 2016, 01:34 PM
sflash868's Avatar
sflash868
Status: Offline
Stephan Laputka
1995 D-90 SW
Member
 
Join Date: Jan 2004
Location: San Francisco, CA
Posts: 972
I put in an RP4 cam when I did my top end. Pretty happy with it. Think it was 200 something bucks RPI engineering. I would also mention that you should check the tappets to make sure they aren't dished or worn. While i'm no expert at all, I think you're supposed to change the tappets all together if you're changing the cam.

That poor engine.. amazing to me how many people think an oil change is just an automotive rumor and not scheduled maintenance.
__________________
Land Rovers are by far the best looking 4x4 on the back of a flatbed...
Reply With Quote
  #17  
Old May 6th, 2016, 01:37 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
Yes you have to do the tappets along with the cam. And based on the condition of that rocker shaft, I would say pull the engine and do everything.

you can check/replace the bottom end shells and the rear main. The engine is much easier to work on with it out of the car, it will save you alot of time to have it out.
__________________

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
  #18  
Old May 6th, 2016, 01:40 PM
Jymmiejamz's Avatar
Jymmiejamz
Status: Offline
Jimmy
1995 D90 SW #365
Member
 
Join Date: Sep 2010
Location: Brooklyn, NY
Posts: 3,468
Registry
This is going to turn into a huge project if you go with the 'while I'm in there" approach. Its a Rover V8, everything is probably worn out but functions fine.
__________________
Car Camping Collective founding member and Treasurer
Reply With Quote
  #19  
Old May 6th, 2016, 01:50 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
functions fine as in under powered due to the wiped cam lobes, low oil pressure due to the worn oil pump parts, wacky retarded timing due to the stretched timing chain, and misfires due to the leaking rings and valves?

Not to mention what happens when one piece of that sludge breaks loose and plugs an oilway.

Yes it is a big project to pull the engine but when it looks like that on the inside, it is really the only way worth doing.

Did that job once with the engine in the car and will never do it that way again. Or so I say, now, sitting here at my keyboard...

Quote:
Originally Posted by Jymmiejamz View Post
This is going to turn into a huge project if you go with the 'while I'm in there" approach. Its a Rover V8, everything is probably worn out but functions fine.
__________________

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
  #20  
Old May 6th, 2016, 01:56 PM
jperakis
Status: Offline
James Perakis
94 ST
Member
 
Join Date: Sep 2003
Location: SF Bay Area
Posts: 508
Quote:
Originally Posted by Jymmiejamz View Post
This is going to turn into a huge project if you go with the 'while I'm in there" approach. Its a Rover V8, everything is probably worn out but functions fine.
Ain't that the truth.

I went from 'oh I'll just replace the headgasket' to 100 real quick.
__________________
remember two things...
Reply With Quote
Reply

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

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
200 Tdi Head Gasket, Can the head be milled? GM13 Defender Technical Discussions 17 October 5th, 2015 09:26 AM
Sanity check - smoke from coolant port on head = head gasket failure ontheway Defender Technical Discussions 16 September 18th, 2015 05:00 PM
4.0 V8 engine parts for sale (starter motor, upper gasket set, lower gasket set) bagocheetohs For Sale - Parts 7 August 11th, 2015 07:12 PM
Defender and sankey driving basics Overlander Defender Technical Discussions 14 March 17th, 2015 12:31 PM
poor gas milage / blown head gasket? got a read diff for a 94 D90? rover_rich_d90 Defender Technical Discussions 7 April 20th, 2004 03:11 PM

» Defender Registry

Honcho

bennett

Stormy

Bozman
Add your Defender

All times are GMT -5. The time now is 10:31 PM.


Copyright