Wistlindixie
New Member
History:
I am a new owner of a 1996 Sea Ray 450 Sundancer with CAT 3126 engines this year. I purchased the boat with no service history. Previous owner no longer available, his wife sold boat and has no details. Engines had fresh white paint new belts, hoses, filters and air cleaners with not even an oil stain anywhere. Survey with sea trail went OK. CAT looked at engines after and said they looked fine, only found loose belt. They did oil and filter changes. Boat had previous salt water use.
Issues:
During sea trial, the port engine ran @ 2700 RPM and STBD @ 2800 RPM @ WOT for testing. No real issues.
On first 4-hour trip the boat was running with SYNC on at about 2200 RPM and @ 30 min in it seemed like the engines stalled. Shut everything down and checked everything but seemed fine. Went another 30 min worked fine until it happened again. This occurred 3 times over the 4-hour trip. Boat sat idle a week and on 2nd use of 30-min to an hour we had no boost and low RPM on port engine. Return to slip found considerable amount of oil under port engine. It was going out the top of the Turbo into cooler.
Questions:
1. I hear these engines have “issues” with heat exchangers and coolers, especially with salt-water use. What are the “issues” and how are they corrected?
a. Does the salt ruin these or do I just need to flush them with Rydlyme?
2. I have almost got the turbo removed, it is only held on by the four flange bolts on the exhaust side of the turbo to the engine. I cannot seem to get to those to remove them. Special tool? Advice? I am already twisted in a pretzel trying to get to that side with the cable Glendening and exhaust in the way.
3. Do I need to completely remove the cooler in order to remove the oil after the turbo blew oil out the top? Or can it be cleaned / drained while installed? I really do not think I can get it out of port side space.
PICTURES:
I know pictures help. Here is image(s) of the turbo and the oil it spit out.
{not sure why the system rotates the pictures after upload, sorry.}
Turbo fan seems solid, no wobble or play side to side. Will just a seal leaking oil cause symptoms?
I am a new owner of a 1996 Sea Ray 450 Sundancer with CAT 3126 engines this year. I purchased the boat with no service history. Previous owner no longer available, his wife sold boat and has no details. Engines had fresh white paint new belts, hoses, filters and air cleaners with not even an oil stain anywhere. Survey with sea trail went OK. CAT looked at engines after and said they looked fine, only found loose belt. They did oil and filter changes. Boat had previous salt water use.
Issues:
During sea trial, the port engine ran @ 2700 RPM and STBD @ 2800 RPM @ WOT for testing. No real issues.
On first 4-hour trip the boat was running with SYNC on at about 2200 RPM and @ 30 min in it seemed like the engines stalled. Shut everything down and checked everything but seemed fine. Went another 30 min worked fine until it happened again. This occurred 3 times over the 4-hour trip. Boat sat idle a week and on 2nd use of 30-min to an hour we had no boost and low RPM on port engine. Return to slip found considerable amount of oil under port engine. It was going out the top of the Turbo into cooler.
Questions:
1. I hear these engines have “issues” with heat exchangers and coolers, especially with salt-water use. What are the “issues” and how are they corrected?
a. Does the salt ruin these or do I just need to flush them with Rydlyme?
2. I have almost got the turbo removed, it is only held on by the four flange bolts on the exhaust side of the turbo to the engine. I cannot seem to get to those to remove them. Special tool? Advice? I am already twisted in a pretzel trying to get to that side with the cable Glendening and exhaust in the way.
3. Do I need to completely remove the cooler in order to remove the oil after the turbo blew oil out the top? Or can it be cleaned / drained while installed? I really do not think I can get it out of port side space.
PICTURES:
I know pictures help. Here is image(s) of the turbo and the oil it spit out.
{not sure why the system rotates the pictures after upload, sorry.}
Turbo fan seems solid, no wobble or play side to side. Will just a seal leaking oil cause symptoms?
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