Thermostat replacement 5.7L Mercruiser

Replacing thermostat on a 1999 Chaparral 2330 SS with 5.7L Mercruiser engine

[@melrobinson6919]

Good job on the repair and the video. I have a '95 Merc 502EFI and tstat assembly looks quite similar. I am replacing the sea water pump and will be checking the tstat. Thanks.

[@stevehinck4523]

thanks phil couldn't find any video showing how to do this but yours.

[@linsonvarghese406]

Thank you sir , put more related videos .......

[@justinsullivan5759]

I have the EXACT same boat and this video helped me to a T. Thanks fella!

[@GameOver321]

Great video. My gauge isn't working. Have some investigating to do. 1 riser gets pretty warm. I took it apart and it looked really good🤷🏽‍♂️

[@jerrittyler2614]

You sound exactly like Danny McBride...hopefully you can take that as a compliment, cuz Danny McBride is awesome! ...oh, and thanks for the Mercruiser thermostat instructions.

[@jayv7331]

Great video sir

[@vincentwill5655]

great video,thx

[@A.Matt7]

The last thermostat kit didnt give any brass fitting on the o rings and lasted about 4 trips running about 25 miles each time. Alarm started blarung the 30 minute ride back was annoying so I gave it some hass and 25 knts in no time

[@NoName-bi3vs]

If you're still getting any erratic engine temperature as it sort of looked liked it to me in your video, then you should try using the cork gasket inside the T/Housing as that is the correct gasket to use on this T/housing design....The O-Ring was more meant to be for the older design T/housings from Mercruiser.

[@jasonredepenning]

wow man your quick at taking bolts out and I could use you in my shop lol..

[@Foulmouthflicks]

When you put all your hoses back on do you have to bleed the system to get air out or just hook up the flush hose for a few

[@nelaco1]

Thank you for a great video! How is the boat running? Is the temp fluctuation normal? My boat is doing the same after I replaced all the hoses and raw water pump and I can't remember if the fluctuation was happening before or not. I am planning to replace the thermostat just in case since it is 9 years old.

[@victorlinares5753]

great video. im having overheating problems with my boat. is there anyway you could show the rout of the belt i wanf to make sure my belt is in correctly seems like we have the same engine. i have a 1997 mercruiser. i would really Appreciated it

[@jimp313]

Nice. You're lucky you didnt have to take out the old spacer, mine is stuck in good.

[@mikedodd9294]

on my boat you use the gasket in the kit not the o-ring 350 MAG MPI

[@my202br]

Did you use any sealant on the gasket?

[@andya34]

Are you sure the thermostat doesnt go the other way in the housing?

[@chrisciraldo4935]

Good video just wish you would show all the steps and if had gaskets left over as I figure this is a universal kit mine is just like yours so I just need 2 gaskets and oring

[@Jazzy4now]

That thermostat is installed upside down. According to the MerCruiser Service Manual the thermostat element goes in the opposite way.