sutor623
Rear Admiral
- Joined
- May 23, 2011
- Messages
- 4,089
Hey guys,
I have a 1993 Johnson 115 crossflow motor. This was a salt water motor, but I have replaced the entire cooling system.
New stats, poppets, springs, water pump, cylinder head gaskets and water deflectors. I cleaned up the water jackets around the cylinder heads and made sure the passageways into the head were clear.
Anyways, she will idle all day and set in the 140-150 range. Telltale is pumping strong.
If I take a wide open throttle run and stop, she will be significantly hotter. The longest run that I have taken was about 4 miles and was running from 3/4 to WOT. I went to a dead stop and cut her off and took some temp readings. Below is what I found. I know that the circled area is about the last spot that the cooling water runs through before exiting the block at the bottom of the head, but it still seems too hot to me.
I thought these blocks should be in the 120 degree range once the poppets open? Is that head temp or block core temp? My block core temp was around 170, which Im not sure if that is too hot or not. Thanks guys!!
I have a 1993 Johnson 115 crossflow motor. This was a salt water motor, but I have replaced the entire cooling system.
New stats, poppets, springs, water pump, cylinder head gaskets and water deflectors. I cleaned up the water jackets around the cylinder heads and made sure the passageways into the head were clear.
Anyways, she will idle all day and set in the 140-150 range. Telltale is pumping strong.
If I take a wide open throttle run and stop, she will be significantly hotter. The longest run that I have taken was about 4 miles and was running from 3/4 to WOT. I went to a dead stop and cut her off and took some temp readings. Below is what I found. I know that the circled area is about the last spot that the cooling water runs through before exiting the block at the bottom of the head, but it still seems too hot to me.
I thought these blocks should be in the 120 degree range once the poppets open? Is that head temp or block core temp? My block core temp was around 170, which Im not sure if that is too hot or not. Thanks guys!!
