Temro 3100087 Block Heater - Fitting Experience

Shearpin

Well-known member
A quick note on fitting the Temro 3100087 core plug heater.

If you choose to use the front core/frost plug hole this is fiddly frustration. My hats off to those of you who fitted this part within 1 hour. I fitted it in 3 hours, and it started leaking the minute I refilled the coolant. My wife commented on my slumped shoulder return to the house as the sun was setting “I thought the water pump and p gasket was only going to take a few hours.”

The problem - the heater element protrudes into the block along with a butterfly nut that locks it in place. Inside the block there is a labyrinth of passages - angled, straight walled, rounded. You are required to bend the element to a precise angle I never attained. At one point I had the element angle almost perfect, but the butterfly nut was fowling on a vertical wall inside the block. I bent it again.

In the end it appeared properly seated. I have a suspicion I it was not, and I probably bent the inner portion of the part while bending the element. Either and or both of these issues produced a leak. Frustration.

A word of caution if you are attempting this - order a replacement core plug just in case. I didn’t - and am waiting for parts.

Is there a locally available core plug for this engine? Any other suggestions on a plug and play core plug for the spatially challenged?

Henry
 

Napalm00

Technical Excellence Contributor
i cant remember what mine is installed in BUT! i did have to bend the element on the backside to make it fit better. Has been in place for about 7 years , but yea...what a biotch to get in there.
 

Moose

Member
I feel your pain Henry. Did the exact same thing with the same results. I finally ended up using a sealer of some kind (don't remember exactly what) that stopped the leak.

If you are desperate , I have a spare core plugs here in Mississauga you can have.

Brett
 

Tomaco1

Well-known member
Is that a 200tdi?
I had the same problem, I have an extra block with the center freeze plug out, if I remember correctly it seemed to fit much better.
 

Shearpin

Well-known member
It’s a 300 tdi.

I’ll attempt the centre freeze plug if I ever have occasion to have the manifolds off. I am going to pick up one of the external options for the coming winter...
 

Napalm00

Technical Excellence Contributor
I had a moroso stick on oil pan heater , worked great when i was in the north east. I ran both the oil pan heater and the block heater off of a heavy duty xmas lights timer.

The timer was weatherproof and outdoors, would switch on the heaters about an hour before i left for work in the morning. Truck would start easily and the heater would work within a few min.
 

Shearpin

Well-known member
I met with Brett (Moose) this evening for a parts exchange and to talk Land Rovers - got the core plug I needed.

Thanks again - Brett - really appreciated. Any mechanical shortcomings these vehicles may or may not have is more than made up for by a great community...

Henry
 

Moose

Member
It was good to see you again Henry. And my Series 3 enjoyed meeting up with your Series 3. Nice to see the old ones out and about.

Brett
 

Tomaco1

Well-known member
I met with Brett (Moose) this evening for a parts exchange and to talk Land Rovers - got the core plug I needed.

Thanks again - Brett - really appreciated. Any mechanical shortcomings these vehicles may or may not have is more than made up for by a great community...

Henry

core plug? Or heater plug?
if it’s a different type of heater plug can you grab a pic.
 

hillstrubl

Founding Member
I had a moroso stick on oil pan heater , worked great when i was in the north east. I ran both the oil pan heater and the block heater off of a heavy duty xmas lights timer.

The timer was weatherproof and outdoors, would switch on the heaters about an hour before i left for work in the morning. Truck would start easily and the heater would work within a few min.
I had a generic Amazon pan heater in my 300TDI D1 and agree, it worked great. My issue was on the other side, trying to get home where I didn't have a plug at work to use the heater.
 

Napalm00

Technical Excellence Contributor
I was in the same predicament for a long time. If the office building works out has a standby generator one of the huge ones it usually has a accessible standard plug near it. Take a peek around there and you'll probably find that you'll have something to plug into
 
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