As well all know, there was a recall that added a second thermostat to the cooling system In order to eliminate a rare problem where during an overheat, a coolant hose would burst above the drivers legs sending scalding water onto their legs.
here is the realoem parts diagram of the additional thermostat
You will notice there are only 3 hoses listed: block to new thermostat, new thermostat to T-piece, new thermostat to firewall.
Here is the realoem parts diagram for the cooling system hoses
Notice part number 13 - the 3 way heater hose that connects to the new thermostat t piece
Here's the problem. They don't actually have a modified 3 way hose (unless it's
Unlisted) that is shorter, nor do they have an extra hose that goes between the T piece and the firewall heater outlet. Instead, when you buy the 3 way hose, you are supposed to actually cut off where the 'T' piece goes and then simply add in the T.
My problem is that I was unaware of this back when I first got my e30 and did a minor coolant hose overhaul. I replaced everything except the stuff hidden under the rear of the intake mani: the new thermostat hoses or the rear throttle body heater hose that goes to the back of the block.
So naturally, I cut my 3 way hose becasue it was for some reason (the thermostat recall unbeknownst to me at the time) way too long. Then I threw out that extra hose.
I know have the intake mani off and it's time to resolve the old hoses. I have all the ones listed on realoem for the new thermostat but obviously don't have the extra piece you are supposed to create yourself from the3 way hose.
Instead I picked up some 19mm heater hose (appears to be the same diameter) that is rated as 1.68 BAR.
My question is can I use this 1.68 BAR heater hose or is that pressure rating too low? Additionally, is tjere actually a part number for this length or are ou legit supposed to cut it out of a new 3 way?
Quite a long winded post but I didn't want to have to explain more stufff afterwards.
here is the realoem parts diagram of the additional thermostat
You will notice there are only 3 hoses listed: block to new thermostat, new thermostat to T-piece, new thermostat to firewall.
Here is the realoem parts diagram for the cooling system hoses
Notice part number 13 - the 3 way heater hose that connects to the new thermostat t piece
Here's the problem. They don't actually have a modified 3 way hose (unless it's
Unlisted) that is shorter, nor do they have an extra hose that goes between the T piece and the firewall heater outlet. Instead, when you buy the 3 way hose, you are supposed to actually cut off where the 'T' piece goes and then simply add in the T.
My problem is that I was unaware of this back when I first got my e30 and did a minor coolant hose overhaul. I replaced everything except the stuff hidden under the rear of the intake mani: the new thermostat hoses or the rear throttle body heater hose that goes to the back of the block.
So naturally, I cut my 3 way hose becasue it was for some reason (the thermostat recall unbeknownst to me at the time) way too long. Then I threw out that extra hose.
I know have the intake mani off and it's time to resolve the old hoses. I have all the ones listed on realoem for the new thermostat but obviously don't have the extra piece you are supposed to create yourself from the3 way hose.
Instead I picked up some 19mm heater hose (appears to be the same diameter) that is rated as 1.68 BAR.
My question is can I use this 1.68 BAR heater hose or is that pressure rating too low? Additionally, is tjere actually a part number for this length or are ou legit supposed to cut it out of a new 3 way?
Quite a long winded post but I didn't want to have to explain more stufff afterwards.
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