I started my mini up in 19° and let it warm up but as soon as it started warming up, it started going into overheat mode and I heard a very loud noise from the engine that was beeping. Anyone had this experience or know what it could be?
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Cat 303.5 CR Mini engine overheat beeping noise video included help
- Thread starter StevieV
- Start date
Simon C
Senior Member
- Joined
- Jul 1, 2015
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- 2,990
- Location
- Rocky Mountain House , AB., Canada
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- Heavy Equipment Mechanic
Have you checked the actual radiator, not the overflow bottle? Is the fan belt still there and tight. Has the rad been washed out iin last little while. Is there a difference of temperature from top rad hose to bottom rad hose. Have you checked with a heat gun to see how warm the hoses are when it says it is hot. Do some checking before starting the parts Cannon.
Simon C
Simon C
Simon C
Senior Member
- Joined
- Jul 1, 2015
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- 2,990
- Location
- Rocky Mountain House , AB., Canada
- Occupation
- Heavy Equipment Mechanic
You might have to clean between the rads as sometimes they get plugged in between.
Simon C
Simon C
Nige
Senior Member
From the thread title you said you included a video. I don't see it.
You cannot upload videos direct to this forum. You have to host them somehwere else then post a link.
You cannot upload videos direct to this forum. You have to host them somehwere else then post a link.
It was the fan belt but what happened is the pulley tensioner came off the compressor belt and broke both belts. I managed to get the fan belt back on but the pulley tensioner is all messed up I do t know how it goes together since parts are missing. I can’t find the parts on cat it is a 2007 303.5 anyone have the parts break down of this I can’t find anything under the Cat site. Is it ok not to have compressor belt. Thank you all
Nige
Senior Member
Post the machine Serial Number and it ought to be possible to find a parts breakdown.
Post the serial number so our resident Cat expert can help you out
LMAO!! I posted simultaneously with Nige!!
Simon C
Senior Member
- Joined
- Jul 1, 2015
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- 2,990
- Location
- Rocky Mountain House , AB., Canada
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- Heavy Equipment Mechanic
Post # 2 I asked if the belt was still there. Wonder how I could remember that after driving 1 hour to a customer with belt wrapped around fan. Glad I figured it out.
Simon C
Simon C
Nige
Senior Member
Does your A/C setup look something like this.? Post a photo if you are not sure.
Aparently your particular machine was not originally built with A/C, at least according to the system.
Nige
Senior Member
See the attached. I think it covers everything related to belts, tensioning, and component mounting.
Nige
Senior Member
Do you mean are there any piece parts available for the pulley assembly.? If so the answer is no, it’s only sold complete.
Nige
Senior Member
When you found the pulley was it missing the bolt and the other fittings.?
Because if so they are not available separately as spare parts, only as part of a "pulley assembly"