Hot exhaust and Steam
Re: Hot exhaust and Steam
I believe that I might have figured it out and it is a pretty logical explanation. I believe that I have a cracked riser on that manifold.
When I removed the elbow from my exhaust and fired up the engine, the very front valve in the location that was getting really hot had water shoot out of it. I removed the manifold and that was the only riser that had any sort of water. I have a replacement on the way and I will be putting it on next week. Hopefully I get this thing fixed before next Weds as we have a festival on the river to go to.
When I removed the elbow from my exhaust and fired up the engine, the very front valve in the location that was getting really hot had water shoot out of it. I removed the manifold and that was the only riser that had any sort of water. I have a replacement on the way and I will be putting it on next week. Hopefully I get this thing fixed before next Weds as we have a festival on the river to go to.
1973 Marinette Seacrest Executive
41x14
Twin Chrysler 340's with Velvet Drive 71C
"Figment"
41x14
Twin Chrysler 340's with Velvet Drive 71C
"Figment"
Re: Hot exhaust and Steam
Compression looks good--don't sweat that 120 reading.
The exhaust manifold at the bottom (where the ports are) always gets that way. The paint is short lived and rust appears. If the manifold at the top gets over 150-160 degrees, however, there's something wrong.
Jeff
The exhaust manifold at the bottom (where the ports are) always gets that way. The paint is short lived and rust appears. If the manifold at the top gets over 150-160 degrees, however, there's something wrong.
Jeff
"We live at the bottom of an ocean of air, not at the top." General Marvage Slatington
Re: Hot exhaust and Steam
Didn't take a super long trip today but long enough to get them hot. Manifolds were at 110-120.
1973 Marinette Seacrest Executive
41x14
Twin Chrysler 340's with Velvet Drive 71C
"Figment"
41x14
Twin Chrysler 340's with Velvet Drive 71C
"Figment"
Re: Hot exhaust and Steam
So...did the problem occur?
Jeff
Jeff
"We live at the bottom of an ocean of air, not at the top." General Marvage Slatington
Re: Hot exhaust and Steam
Nope. We are all good.
1973 Marinette Seacrest Executive
41x14
Twin Chrysler 340's with Velvet Drive 71C
"Figment"
41x14
Twin Chrysler 340's with Velvet Drive 71C
"Figment"
Re: Hot exhaust and Steam
Took the boat home after the festival the engines got a decent workout. Everything is good now.
1973 Marinette Seacrest Executive
41x14
Twin Chrysler 340's with Velvet Drive 71C
"Figment"
41x14
Twin Chrysler 340's with Velvet Drive 71C
"Figment"
Re: Hot exhaust and Steam
Good deal!
Jeff
Jeff
"We live at the bottom of an ocean of air, not at the top." General Marvage Slatington
Re: Hot exhaust and Steam
Last update.
Took about a four hour trip on the boat. It ran great! No issues at all.
Took about a four hour trip on the boat. It ran great! No issues at all.
1973 Marinette Seacrest Executive
41x14
Twin Chrysler 340's with Velvet Drive 71C
"Figment"
41x14
Twin Chrysler 340's with Velvet Drive 71C
"Figment"
Re: Hot exhaust and Steam
Glad you got it straight!
I just had my port side exhaust hose split at the manifold in a pretty dramatic fashion. Had to wrap it with a silicone tape and put a bucket under it to crawl back home. It did make a brief screeching noise before it blew but water was still flowing from the exhaust. Was cruising at about 3k when it happened.
That side always felt warmer during operation but my gage didn't indicate an overheat condition like it did when my belt broke. In the thread, there is mention of an oil cooler filter? Where would that live so I can check it? Also, should I pull the manifold to see what it looks like in there?
I just had my port side exhaust hose split at the manifold in a pretty dramatic fashion. Had to wrap it with a silicone tape and put a bucket under it to crawl back home. It did make a brief screeching noise before it blew but water was still flowing from the exhaust. Was cruising at about 3k when it happened.
That side always felt warmer during operation but my gage didn't indicate an overheat condition like it did when my belt broke. In the thread, there is mention of an oil cooler filter? Where would that live so I can check it? Also, should I pull the manifold to see what it looks like in there?
2x 1973 28 Express - Single 318
New electrical panels, water system and velvet drive
Miami FL & Catawba OH
New electrical panels, water system and velvet drive
Miami FL & Catawba OH
Re: Hot exhaust and Steam
What transmission do you have on yours?
1973 Marinette Seacrest Executive
41x14
Twin Chrysler 340's with Velvet Drive 71C
"Figment"
41x14
Twin Chrysler 340's with Velvet Drive 71C
"Figment"