head gasket replacment advice needed

Just read
This thread
Very entertained by
Ongoing anecdotes.
Legendary.
OP sounds like a great bloke!

my dads p38 still over heating
and pressurizing
time for a new recon head
Damn thing

kettle said:

Hi,all going to replace head on my 2.5DT looking in rave it says use STC 3373 sealant around timing chain housing,having trouble getting it anyone used a similar sealant.

Click to expand...

where does sealant go please
top or bottom or both

also can some one modify pic
where sealant goes
cheers all

willywonker said:

where does sealant go please
top or bottom or both
View attachment 47249
also can some one modify pic
where sealant goes
cheers all

Click to expand...

Where ever two faces meet where there is no gasket .
Any oil heat resistant sealnt will do

gasket Seams to cover all
double checking
has I think it's going to need
a recon head
I still think his head is cracked
company only pressure tested
and not hot test

Yes but that's the head gasket not the timing cover gasket it covers part of the top of the chain cover what you said is for timing cover not head gasket

If I remember the sealnt goes on the bottom becuse of the wet sump oil tends to leak out if not sealed

so gasket is ok
and I can run some sealant
round by timing chain
that's what I did last time
just double checking
ready for new recon head

what makes you think heads cracked , if it is its usually obvious by eye

willywonker said:

where does sealant go please
top or bottom or both
View attachment 47249
also can some one modify pic
where sealant goes
cheers all

Click to expand...

There should be no need to for any sealant timing cover to block providing new gaskets are used. However a smear of Hylomar will do no harm. Sealant is used on both sides of sump where timing cover meets block and where rear crank oil seal housing meets block if you have removed sump. Hylomar is the best sealant on the planet. Get some.

that's what I used before the red
it's all I had left
cheers for the input
folks
my dads brought some ceramic seal
fluid , he wants me to try that first lol

willywonker said:

that's what I used before the red
it's all I had left
cheers for the input
folks
my dads brought some ceramic seal
fluid , he wants me to try that first lol

Click to expand...

Blue Hylomar is best. It is used to seal metal to metal joins on RR jet engines. No gaskets. Ceramic sealing fluid would be K seal, not a lot of good for gaskets i am afraid.

i used to use the blue
for quick fix on 2 stroke scramblers
on the head gasket years ago
cheers
I'll get some blue

willywonker said:

i used to use the blue
for quick fix on 2 stroke scramblers
on the head gasket years ago
cheers
I'll get some blue

Click to expand...

not for the head gasket ?

no I now that lol
I used to use old gasket and blue
to qiuck fix our motorbikes
on the track

hi james

didn't see it was you replying

thx for the help last time m8

still got problems lol

jamesmartin said:

not for the head gasket ?

Click to expand...

+1. NO sealant on head gasket.