I noticed you mentioned something about a fibreglass? header wrap.Why aren't
you using the header wrap they sell at the speed shops?
John Cairns

John Cairns wrote:
I noticed you mentioned something about a fibreglass? header wrap.Why aren't
you using the header wrap they sell at the speed shops?

That is what I am using. They call it a "spun ceramic" which basically
means it is fiberglass... a special kind of fiberglass made for hi temp
and hi R rating instead of tensile strength. But then, most boat
building fiberglass is made to the specs for eelctrical insulation.
That's why S-glass is different stuff, more costly.

I was going to use the cheap stuff from JC Whitney but they didn't know
the temp rating of it. So I splurged on more pricey stuff that is
definitely rated above the needed service temp. But it's a PITA to
install in the crevices I've got to work in.

Regards
Doug King

Regards
Doug King

"DSK" wrote in message
.. .
John Cairns wrote:
I noticed you mentioned something about a fibreglass? header wrap.Why
aren't
you using the header wrap they sell at the speed shops?

That is what I am using. They call it a "spun ceramic" which basically
means it is fiberglass... a special kind of fiberglass made for hi temp
and hi R rating instead of tensile strength. But then, most boat
building fiberglass is made to the specs for eelctrical insulation.
That's why S-glass is different stuff, more costly.

I was going to use the cheap stuff from JC Whitney but they didn't know
the temp rating of it. So I splurged on more pricey stuff that is
definitely rated above the needed service temp. But it's a PITA to
install in the crevices I've got to work in.

Regards
Doug King

I think this might be the stuff I used, bought it at "Ramchargers", not the
sort of thing they carry in the local auto supply.
http://tinylink.com/?w9aafCzvSh
I had the distinct advantage of having the exhaust off the diesel, I can see
where it would be a real pita trying to wrap the thing in the engine
"compartment"
John Cairns

I was going to use the cheap stuff from JC
Whitney.............................

Do you have the Mini Supercharger on your boat?
S/V Express 30 "Ringmaster"
"No shirt, no skirt, full service"

SAIL LOCO wrote:
Do you have the Mini Supercharger on your boat?

No, this insulation is going on the exhaust pipe from the heater
combustion chamber.


John Cairns wrote:
I think this might be the stuff I used, bought it at "Ramchargers",
not the
sort of thing they carry in the local auto supply.
http://tinylink.com/?w9aafCzvSh

Yes, that's the stuff. Comes in a couple different sizes & grades. I'm
using 2" wide tape in the hi temp rating (1800 continuous 2400 spikes)

I had the distinct advantage of having the exhaust off the diesel, I
can see
where it would be a real pita trying to wrap the thing in the engine
"compartment"

Yes it is. Plus, the stuff gives off a fine dust as it is worked, best
not breathed. Of course, silica is all natural so how can it be bad for
you?

Regards
Doug King

DSK wrote:

But it's a PITA to
install in the crevices I've got to work in.


If you put it THERE you'll get a nasty rash!

Cheers