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#1
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Fan vs Shroud
Hi all,
I have a 1969 GTO Recently, (never made noise before) my fan is hitting the bottom of the fan shroud. When I bought the car I didn't notice what it looked like, never needed to. The car runs great! Weird thing is, recently I would hear the noise at startup then it goes away after a few miles and doesn't happen again till the next day start up. I have included a sketch of the problem. not sure how the fan could be so off center from the shroud? Shroud fit looks good. Luckily during the noise investigation, I found I need a new water pump (fan moves a little) so I will be working on that first. It looks like a 69 shroud is different from a 68, might there be another version for a 69? All in all, with the fan/shroud as is, I have never had heating problems, even while driving in 106 degree weather this past summer. Thank you, Jim |
#2
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I think I'd be checking motor mounts.
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#3
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Ditto - check the motor mounts.
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Ken '68 GTO - 464 - Ram Air II heads - 236/242 roller - 9.5” TSP converter - Moser 3.55 Truetrac (build thread | walk around) '95 Comp T/A #6 M6 - bone stock (pics) |
#4
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Makes sense!
Thank you |
#5
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Yep, motor mounts .... and if you get new ones ... get the nice ones that Ames sells, WAY better than the cheapo mounts and will bring the engine up to the proper original height.
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I'm World's Best Hyperbolist !! |
The Following User Says Thank You to dataway For This Useful Post: | ||
#6
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Jim,pay close attention to the trans mount.That make a lot of dif on the front of the engine.Tom
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The Following User Says Thank You to tom s For This Useful Post: | ||
#7
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Agree with Tom.
Have you done anything with tranny/crossmember?
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
#8
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Quote:
Will do |
#9
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Have not touched it, but will investigate
Thanks |
#10
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This is a common problem with Pontiac A bodies, good points so far; too low (worn or incorrect) engine mounts and/or too high trans mount. Other possibilities include trans cross member having rusted out ends replaced incorrectly, lower frame rail(s) at trans crossmember being pushed upwards by improper jacking. Als, past front collision damage resulting in a front frame rail or both being bent upward or if rad support lower rust was corrected in a way that resulted in rad support sitting too high relative to frame rails.
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My Break Away Squad 1969 Fbird (base OHC, 350, 400HO & Sprint Cvt’s - 400HO & TA ht’s) 1969 Custom S 2dr ht 1969 LeMans (2dr & 4dr ht & Cvt) 1969 LeMans Safari wagon 1969 GTO (2 Cvt, 2 ht & Judge ht) 1969 Cat (3 Cvt’s & 2dr ht) 1969 Ventura wagon 2 seat 1969 Exec 4dr post 1969 Bonnie Cvt & 2 wagons 1969 Bonnie Brougham (4dr ht & Cvt) 1969 Grand Prix 2 SJ’s 1969 2+2 2dr ht (Canadian) |
#11
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This is the car Jim is talking about.Tom
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#12
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Water pump going out?
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be a simple...kinda man. |
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