rhett838

Hello!

I have a 68 Cutlass Conv with a 350. I recently purchased a dual fan from Jegs to keep my car from overheating at the stop lights in the Texas heat.

Im also switching to an EFI system. B/c of that, I gave the fan to my mechanic to install also.

He says there's nowhere on the car to attach the mounting brackets that came with the fan. He has to fab some.

I have a traditional cross flow radiator.

My question: Is there a place he can attach the brackets to? Is there a bracket kit that'll work with Olds, or do the brackets have to be fabbed?

Below is a link to the fan I purchased.

Thanks for your help!

http://www.jegs.com/i/JEGS-Performan.../-1#tabpanel-6

olds 307 and 403

Hopefully they pull in enough air. The good ones draw about 50 amps.

rustyroger

I suppose I could say fix whatever lets it overheat with the factory setup.
But that dead horse has long ago been dragged off to the knackers yard.

What the heck, why not fix whatever is wrong with the factory setup?.

Normally these posts show up at the beginning of summer.

Roger.

oldcutlass

Its hard to give an honest answer without seeing what the mechanic sees.

toymobile

If you do away with your fan you will need one of these.

I only have this one left, send me your address and I will send it to you.

Johnny

oddball

1) I'm in DFW, and the stock setup is actually quite good. You need the clutch, the large fan, and a shroud. You should hear the fan get extremely noisy when the car gets hot - that's when the clutch engages. If it never does, then the clutch is shot and that's a good reason for it failing. You can also tell the difference between "slipping" and "locked" on cold days. The clutch will be sluggish when cold, so you'll get tons of airflow. Once heat gets into the radiator, the clutch warms up and will start slipping. Until the car gets too hot.

2) You don't need the spacer if you replace the studs with some 1/4" fine thread bolts/screws.

3) Yes, you have to get creative on mounting the fan. Usually you can use the existing bolt tabs to go into the shroud and use captive nuts on the shroud - just like the stock mounting. If the new shroud isn't the right size/shape, then you have to make something. That's very normal.

Olds64

Why not just use these to install the fan?

https://www.summitracing.com/parts/sum-g4990/overview/

rhett838

I'm doing this in response to an entire summer of driving. I took my car to work often. It also has AC, so that heats it up a bit too.

I switched out the regular coolant with Evans waterless, and that actually helped a bit, but it's not enough.

I understand the want to preserve these cars as they came out of the factory, but let's face it the way they came out in 68 doesn't lend to today's driving styles.

I want to drive my car often, to and fro work, reaching 70mph in some spots,40 miles a day. I did that this summer...it overheated a little, so now I'm trying to fix that.

rhett838

It's funny you mention Summit, b/c they just built a GIANT warehouse near me. I picked up some brackets there yesterday...I dropped them off at the mechanic this morning, and he said he already had the fan mounted securely...

oldcutlass

I need to sneak over to the new Summit and check it out.

rhett838

Thanks!

What does it do?

Here's what it looks like now.

BangScreech4-4-2

Make sure you keep all the factory bits. Might make it easier to sell when the time comes.

toymobile

Supports the pulley, I had a center brake out before I realized that it needed some support with the fan clutch removed.

Johnny

Olds64

Glad your mechanic got it working.

redoldsman

Those are not the most recommended way to attach a fan. There is a lot of vibration from the fan and they can eventually rub a hole in the radiator. That is what a reliable radiator shop told me.

Olds64

That makes sense. I suppose one could put generic weather stripping between the radiator and the electric fan. That would cut down on abrasion and rattles.