• Hi Guest! Being a Paying Supporter is NOT a requirement to participate at BCF. However, subscribing will help ensure we can continue to serve the LBC community for years to come. If you enjoy BCF and find our forum a useful resource...Please consider supporting us by **Upgrading**
    (PS: Subscribers don't see this banner)
Tips
Tips

Head Gasket

D

DougF

Guest
Guest
Offline
I'm looking at replacing the head gasket in the TR6. The engine overheated a couple weeks ago. Things seemed okay but now the system is pressurizing just as the engine is reaching operating temperature. This will be the third time it's been replaced in two driving seasons and is showing the same symptoms as before. Shouldn't be a retorquing issue, but I will test the torque at disassembly.

The head is going to the shop for magnifluxing and checked for warping.

I've been using Payen head gaskets. Never had problems with these before. In fact, never had any head gasket problems before.

Compression ratio is 9.7-1. Any suggestions on a gasket that might provide better results than what I've been experiencing? I have a solid copper one that was given to me, but I want things to seal on the first try.
 
OP
D

DougF

Guest
Guest
Offline
I happen to have some on the shelf and will use it. Not certain if I used it on this engine. Thanks
 

Brosky

Great Pumpkin
Offline
Payen is the best IMHO, others that are good include Fel-Pro.

Did you ever straight edge the block with a feeler gauge?
 

TomMull

Luke Skywalker
Silver
Country flag
Offline
DougF said:
The engine overheated a couple weeks ago.

I wonder why it overheated? Perhaps there is something amiss unrelated to the head gasket? Overheating will, as you know, cause head gaskets to leak and heads to warp or crack.
Just a thought. Tom
 
OP
D

DougF

Guest
Guest
Offline
The electric fan quit working.

The head is coming off tonight and going to the shop.
 

tr6nitjulius

Jedi Warrior
Country flag
Offline
Have you consider silicone head gasket have being using one of J. Wagner's since 2003 on my TR6, excellent fit up and seal and best of all reusable every 2 yrs remove & reinstall mine to adjust/tighten valves the latest this past August. Another attribute the process of scrapping off old cork gasket from valve cover & engine block is no longer necessary as kits supplied glue glues gasket to valve cover nothing needed on head. Details on his website: T6 Gasket

https://www.jmwagnersales.com/
 
OP
D

DougF

Guest
Guest
Offline
Yes, thank you. I've been using a silicone gasket since I installed an aluminum valve cover. Unfortunately, Wagner's doesn't fit the after market pieces.
 

poolboy

Yoda
Country flag
Offline
Sounds like Julius is confusing valve cover gasket with head gasket..unless I missed something in the conversation. :crazyeyes:
 

airlifter

Jedi Hopeful
Offline
DougF said:
I'm looking at replacing the head gasket in the TR6. The engine overheated a couple weeks ago. Things seemed okay but now the system is pressurizing just as the engine is reaching operating temperature. This will be the third time it's been replaced in two driving seasons and is showing the same symptoms as before. Shouldn't be a retorquing issue, but I will test the torque at disassembly.

The head is going to the shop for magnifluxing and checked for warping.

I've been using Payen head gaskets. Never had problems with these before. In fact, never had any head gasket problems before.

Compression ratio is 9.7-1. Any suggestions on a gasket that might provide better results than what I've been experiencing? I have a solid copper one that was given to me, but I want things to seal on the first try.

What do you mean by pressurizing? are you getting some oil seepage from the head gasket?

The same thing happened to me a couple of years ago. While I had the head off I thought I would check the bearings. I found that the rod and main beaings were scored. Mine goty really hot. I don't know how hot yours got but you might want to check it out. I also had the head rebuilt. I have the dist. sent off for rebuild now. I hope to get it back soon so I can get it running.
 

Brosky

Great Pumpkin
Offline
I think that he means that his cooling system is being filled with excess pressure from combustion caused by a leak between cylinders being forced into the water jacket.
 
OP
D

DougF

Guest
Guest
Offline
Yes, after a short idle time, antifreeze is spurting into the overflow bottle. I don't have any oil/antifreeze mixing to speak of.
 

poolboy

Yoda
Country flag
Offline
Makes me wonder about your radiator cap. 9 # or 13 , and condition ?
 
OP
D

DougF

Guest
Guest
Offline
The cap was bad and has since been replaced. The radiator is at the shop, and the head will be at the machine shop today.

Stopped at The Roadster Factory yesterday to pick up a new head gasket. The front plate is coming off to fix an oil leak. A few other projects to be completed and I hope to have everything done before cold weather kicks in.
 

Brosky

Great Pumpkin
Offline
OK, back to my TR8 engine story. I had cracked/loose liners (not in a TR6 engine) that allowed combustion to get into the cooling system, but did not allow coolant to get into the oil or for white smoke to blow out of the tailpipe.

The liners started moving up and down in the block and it just got worse and worse until I couldn't run it for more than three minutes and the hoses would look ready to explode. My end result was a replacement engine.

Now as I said, TR6's do not use those types of liners, as they have a solid cast iron block. I have seen many leaks over the years that have gone directly into the cooling system with no evidence of any "typical" head gasket failure signs, like white smoke and milky oil. Have the head checked closely for cracks via magnaflux and pressure testing as well.
 
OP
D

DougF

Guest
Guest
Offline
The shop is closed for the week.

The one plus is the problem isn't in the same area as the last time. Last time, the problem was around #'s 2 and 3 cylinders. This time it is at #5.
 

Brosky

Great Pumpkin
Offline
Good luck Doug. I'm sure that they will test it well before getting back to you.
 

KVH

Luke Skywalker
Country flag
Offline
I'm one of the folks who has had bad experiences with solid copper gaskets. I'd never go that way again, but I don't race either.

My Payen sandwich gasket hasn't leaked since I put it in. My car does, however, get hot at stoplights, so I use an auxiliary electric fan.

Careful re-torquing the head studs. I snapped one and stood wondering how I'd fish the stud remnant out of the block. Amazingly it snapped only 1/4" into the block and I used an easy out.
 
Similar threads
Thread starter Title Forum Replies Date
Csarneson Head Gasket Seal Austin Healey 6
R Cylinder head gasket BJ8 Austin Healey 32
B TR4/4A Head gasket won't lay flat Triumph 13
Michael Oritt Head gasket question Austin Healey 17
Got_All_4 General TR Payen brand head gasket sets what's the difference Triumph 10
Simmo TR2/3/3A Head Gasket Triumph 4
KVH General Tech Head Gasket Triumph 10
RJS General TR Head Gasket Test Fit Triumph 5
D TR2/3/3A head gasket... which way up?! Triumph 8
KVH TR4/4A Blown Head Gasket? Triumph 12
T TR4/4A Head gasket sealer question Triumph 7
T TR4/4A How to prep block to reinstall head for composite gasket Triumph 3
T TR4/4A Composite vs cooper head gasket with Randall's "trick" Triumph 6
T TR4/4A This head gasket doesn't look right to me - cooling passanges partially blocked? Triumph 18
H TR4/4A Head Gasket Issue Triumph 4
Got_All_4 TR2/3/3A What direction does the head gasket go? Triumph 4
T TR4/4A Best head gasket for a 4A? Triumph 12
DornTRoriginal TR2/3/3A TR3 Head Gasket Questions Con't Triumph 3
B Victoria British Head Gasket Austin Healey 6
T TR4/4A Seems like a bad cylinder head or head gasket but what do you think? Triumph 19
G Payen XK engine head gasket -- which side is the top? Jaguar 2
KVH General TR Cylinder Head Gasket: Stay Simple? Triumph 9
S Recommendation on Head Gasket? Austin Healey 14
S Tolerance for head gasket Austin Healey 10
RickB MGB Bought 1980 MGB and got it home - head gasket? MG 15
Gliderman8 TR6 Question on installing new head gasket Triumph 2
RedTR3 TR2/3/3A How to check for cylinder-to-cylinder head gasket leak Triumph 7
B Experience with Cometic Head Gasket for BN2? Austin Healey 8
S SaxMan's Cylinder Head Overhaul / Head Gasket Replacement Thread Spridgets 135
M TR2/3/3A Head gasket leaking in two places Triumph 13
S TR2/3/3A head gasket Triumph 5
AngliaGT General MG MGB GT Head Gasket - What do I need? MG 3
G TR2/3/3A TR3/TR4 Cylinder Head Gasket SElection Triumph 2
B MGB 1972 MGB, Head Gasket replaced...runs very poorly. MG 30
O HEALEY 100 Head Gasket Gone ? Austin Healey 10
J Blown head gasket in 3 min. a new record! Triumph 14
Lukens TR2/3/3A TR3 blown head gasket? Triumph 39
L 1275 Head Gasket Spridgets 7
M persistand head gasket leak 1959 mg 1600 MG 3
RedTR3 TR2/3/3A TR3 Head Gasket [Again] Triumph 4
RedTR3 TR2/3/3A TR3 Head Gasket Triumph 6
DNK The Head Gasket Triumph 27
Boink Head gasket recommendations... Spridgets 13
Morris Blew another head gasket... Spridgets 15
Stewart I sure hope its just a head gasket MG 8
6 MGB 79 MGB Head Gasket Screwup MG 7
M Head gasket use sealant or not Austin Healey 7
M Head Gasket Orientation Austin Healey 2
M Head gasket replacement. Austin Healey 6
T Replacing Head Gasket help Spridgets 4

Similar threads

Top