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Old 11-06-2009, 02:06 PM   #183
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HMMmmmm - one of the pics from further above seems to have dropped off the image server I use, and this board doesn't seem to allow post editing after a short period of time , so I'll hafta repeat it here I guess:

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Old 11-07-2009, 09:17 AM   #184
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Does anyone think putting those huge fans in was the fix for overheating issues with the older models, they must of done it for a reason.
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Old 11-07-2009, 09:45 AM   #185
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Does anyone think putting those huge fans in was the fix for overheating issues with the older models, they must of done it for a reason.
Oldvet, I use NO fans in the 115 heat in the low desert.....

The clean air path into the radiator does the cooling rather well, This current trip to Tombstone the weather was rather warm and it's mostly uphill every inch of way.....

Max temp climbed to 200 eastbound out of Gila Bend with headwinds which cut my mileage back to 7.7 MPG while towing the Saturn.

Not once did the engine mechanical fan kick in so my guess is my rig is still desert ready BUT would fall on it's face in the frozen north

Jim
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Old 11-07-2009, 02:20 PM   #186
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I kicked my timing up a bit more but haven`t tried it yet.
Like ya said i`m real close, froozen north , eeeeeek.
That`s why we be in TX.

There probably ain`t no motor in Garys rig, just a couple 12 inch pipes sticking out the back, the air blast propels it along. lol
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Old 11-07-2009, 07:11 PM   #187
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Does anyone think putting those huge fans in was the fix for overheating issues with the older models, they must of done it for a reason.
I've used the aftermarket electric fans on other past projects - and seen many of them used in hotrod applications, yes, they DO work, and work well, as long as they are selected carefully to match the application as to size and airflow capacities - you can actually SEE the temp gauge drop down when those fans kick in...
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Old 11-08-2009, 08:08 AM   #188
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I've used the aftermarket electric fans on other past projects - and seen many of them used in hotrod applications, yes, they DO work, and work well, as long as they are selected carefully to match the application as to size and airflow capacities - you can actually SEE the temp gauge drop down when those fans kick in...
I agree with that and if I could find a set of fans like that i`d put em in for sure.
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Old 11-08-2009, 08:43 AM   #189
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I kicked my timing up a bit more but haven`t tried it yet.
Like ya said i`m real close, froozen north , eeeeeek.
That`s why we be in TX.

There probably ain`t no motor in Garys rig, just a couple 12 inch pipes sticking out the back, the air blast propels it along. lol
Oldvet...Two items remained unsolved.
1st, No pinging as of yet and 2nd you stated the fuel used is the lowest octane at the cheapest price.

Still ain't right yet cuz you should hear some type of marbles (ping) rattling aroud especially with the higher head temps.

Winter time will allow me to drop into the mid range fuel grades but here in the west the temps remain into the mid 80s.

Jim
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Old 11-08-2009, 10:19 AM   #190
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Your going to have to be more clear, this is the first time i`ve had the timing above eight and haven`t had a chance to try it where it`s set now. It could ping now and if it does i`ll set it back a little but first i`ll fill up with a higher octane.
Think about this, if the clutch fan doesn`t kick in until 220 and your not moving what`s supposed to keep the temps below that.
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Old 11-08-2009, 01:23 PM   #191
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Your going to have to be more clear, this is the first time i`ve had the timing above eight and haven`t had a chance to try it where it`s set now. It could ping now and if it does i`ll set it back a little but first i`ll fill up with a higher octane.
Think about this, if the clutch fan doesn`t kick in until 220 and your not moving what`s supposed to keep the temps below that.
My "Clutch fan" picks up speed at idle then after 15 seconds after away it goes silent soooo it stays cool.

I would NOT pull the timing back until it pings slightly then if only a slight ping you will know if it is tooooo much and you can up the grade to the next level, Now if the ping disappears your on the money and figure at what altitude your at.....kinda nice and confusing huh

Jim
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Old 11-08-2009, 03:19 PM   #192
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YUP - what's wanted, is just a SLIGHT momentary audible ping when you first really hit the accelerator hard - but then quickly goes away. A longer, or extended pinging can be damaging.

I'm at 11 degrees advance so far, and NO evidence of pinging yet.
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Old 11-08-2009, 04:17 PM   #193
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Kinda lookin forward to a test drive but it may be a few weeks till we move on to the next place.
Sure enjoying this rv`ing around the good ole USA, God bless her.
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Old 11-18-2009, 12:04 PM   #194
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Does anyone know if the older 454 had a harmonic balancer with rubber inside it. Seems that I remember that one that did could turn and throw your timing marks off, this one has a wobble to it so was wondering if that could be the issue .
If that was the case then the timing could be way off using the marker.
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Old 11-18-2009, 12:26 PM   #195
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Does anyone know if the older 454 had a harmonic balancer with rubber inside it. Seems that I remember that one that did could turn and throw your timing marks off, this one has a wobble to it so was wondering if that could be the issue .
If that was the case then the timing could be way off using the marker.
Yup, That can happen...

Jim
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Old 11-18-2009, 12:38 PM   #196
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Yup, That can happen...

Jim
Well if that be the case then timing by ear should improve things.
We`ll be back on the road the first of the month for a test drive.
Thanks and happy turkey day everyone.
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