1993 Damon Intruder/P30 454 Overheating
Hey guys, hope y'all are doing well. We're having some issues with our 1993 Damon Intruder with the big block in it. For some background, last summer we were road tripping across some of the north wes...
Forum Discussion
Ok well, after some more trouble shooting and just watching the engine run I have a little more information. The top and bottom radiator hoses are super soft, but neither of them seem to be collapsing under load. I am going to recommend to the shop that they try a severe duty fan clutch. I believe the Hayden P/N was 2797. What's your guys' experience with Hayden? I had read they're effectively identical to the ACDelco that was OEM on it. I did check the temperature of the back of the clutch with an IR gun, and it was reading around 170-175 but no engagement.
The shroud is in rough shape, I bet it's the original plastic shroud and it's cracked and come apart in several places. As a temporary fix and just to see what would happen I got it set up roughly where it should be (the right side of the shroud was standing away from the radiator an inch or two) and covered the big gaps with some aluminum tape. That seems to have fixed the idle overheat, at least in the cool weather. I let it idle for about 30 minutes yesterday and it seemed fine.
The sticker on the new fan is for a Dorman 621-108. It is a metal fan, looks like the OEM. Only thing is I'm unsure of the orientation of the original fan. It's not backwards, but if it's spinning the wrong way that's effectively the same thing.
Lwiddis,
Yea, I'm going to pick up a timing light and check the timing. That was one thing I had considered. Stock initial is 4* BTDC right?
pianotuna,
Do you happen to remember what manufacturer the fan was from? Or maybe a URL to that thread? If you can't find it no worries, and thanks for the tip
Gjac,
Good point, they had it sent somewhere to have that done. I'll double check that they physically cleaned the rad out. I checked the rad with my IR gun yesterday and the temps seemed fairly uniform
BluegrassBill,
Yea, that's what we're thinking next. It is a steel blade. I'm going to shoot them the Hayden P/N for a severe duty clutch
DougE,
Thanks for the tip about the clutch before install. Would a Hayden be acceptable re the above?
MexicoWanderer,
Thanks for the anecdotes, I'll keep them in mind. Especially driving the truck with no fan as a possible troubleshooting step. Although I'd prefer to avoid that if we can.
The shroud is in rough shape, I bet it's the original plastic shroud and it's cracked and come apart in several places. As a temporary fix and just to see what would happen I got it set up roughly where it should be (the right side of the shroud was standing away from the radiator an inch or two) and covered the big gaps with some aluminum tape. That seems to have fixed the idle overheat, at least in the cool weather. I let it idle for about 30 minutes yesterday and it seemed fine.
The sticker on the new fan is for a Dorman 621-108. It is a metal fan, looks like the OEM. Only thing is I'm unsure of the orientation of the original fan. It's not backwards, but if it's spinning the wrong way that's effectively the same thing.
Lwiddis,
Yea, I'm going to pick up a timing light and check the timing. That was one thing I had considered. Stock initial is 4* BTDC right?
pianotuna,
Do you happen to remember what manufacturer the fan was from? Or maybe a URL to that thread? If you can't find it no worries, and thanks for the tip
Gjac,
Good point, they had it sent somewhere to have that done. I'll double check that they physically cleaned the rad out. I checked the rad with my IR gun yesterday and the temps seemed fairly uniform
BluegrassBill,
Yea, that's what we're thinking next. It is a steel blade. I'm going to shoot them the Hayden P/N for a severe duty clutch
DougE,
Thanks for the tip about the clutch before install. Would a Hayden be acceptable re the above?
MexicoWanderer,
Thanks for the anecdotes, I'll keep them in mind. Especially driving the truck with no fan as a possible troubleshooting step. Although I'd prefer to avoid that if we can.
