HJ-61 australian restoration
- Thread starter chris lc90
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- Thread starter
- #42
Another problem it is that after brakes front and rear bleeding and tested ..the next day found the refilling cap empty.!!
Remover the brake booster and master cylinder and found liquid to the brake booster.
Noticed that a lot of impurities and solid sludges found to the circlip to the side of the master cylinder
Remover the brake booster and master cylinder and found liquid to the brake booster.
Noticed that a lot of impurities and solid sludges found to the circlip to the side of the master cylinder
- Thread starter
- #43
yes. in Europe never cames 60s with high roof and auto transmission.
Hi there, just found your thread here - Good to see your HJ coming along nicely and what a story behind it ! I am from Germany originally and have very good memories from travelling to Greece in the late 80's and early 90's riding my Yamaha XT500 ....visited your beautiful country 4 or 5 times.
I don't want to scare you - but when I'm reading that your previous owner ran the engine without coolant....I have to tell you about my experiences.
My engine was also neglected the same way by the previous owner and after a while owning it - the head gasket failed. When I took the head off I was shocked - the whole sealing surface from block and head was brown from rust, I have never seen it that bad since I started my apprenticeship as a mechanic in 1986. The reason was not only the pure water in the cooling system... Some of the head bolts are going through a water jacket, a cavity inside the head for the coolant. Those bolts are normaly protected from direct contact with the cooling liquid by thin mild steel sleeves which are pessed in. Due to the long use of straight water those were rusted through and so the water entered the head bolt hole and as the holes for the head bolts in the head gasket are not sealed against water by those printed on silicone sealant like the water passages are, water migrated into the sealing surface by capillary action and finally destroyed all the sealing properties of the gasket.
Those sleeves were not available here in New Zealand off the shelf so I ended up turning them on the lathe. Not ideal but It's about 8 years ago and it seems to work well.
those who use straight water in engines are short sighted - perhaps some old engines could tolerate it....but not every.
I hope your sleeves are better.
(Hi Sved)
I don't want to scare you - but when I'm reading that your previous owner ran the engine without coolant....I have to tell you about my experiences.
My engine was also neglected the same way by the previous owner and after a while owning it - the head gasket failed. When I took the head off I was shocked - the whole sealing surface from block and head was brown from rust, I have never seen it that bad since I started my apprenticeship as a mechanic in 1986. The reason was not only the pure water in the cooling system... Some of the head bolts are going through a water jacket, a cavity inside the head for the coolant. Those bolts are normaly protected from direct contact with the cooling liquid by thin mild steel sleeves which are pessed in. Due to the long use of straight water those were rusted through and so the water entered the head bolt hole and as the holes for the head bolts in the head gasket are not sealed against water by those printed on silicone sealant like the water passages are, water migrated into the sealing surface by capillary action and finally destroyed all the sealing properties of the gasket.
Those sleeves were not available here in New Zealand off the shelf so I ended up turning them on the lathe. Not ideal but It's about 8 years ago and it seems to work well.
those who use straight water in engines are short sighted - perhaps some old engines could tolerate it....but not every.
I hope your sleeves are better.
(Hi Sved)
has anyone replaced head bolt sleeves or tubes before?
Im in the process of rebuilding a 12ht at the moment and my cylinder head is at the machine shop for check up and new seals and valve grind. I got a call from them yesterday and they told that the head appears to have 6 sleeves or tubes that run horizontally through the head and several of them...
forum.ih8mud.com
I found the thread from back then - I'll actually order those and replace them should I have the head off once again.
