DIY: Oil Cooler (scratch built install, lottsa pics).....>.

jborsos · 03-05-2010, 10:11 AM

Modshack,

Excellent summary. I agree with you, engine torquing under track day or extreme driving events could be as much as 4-5 inches. Couple this with hose contraction of up to 10% reinforces how critical the routing and length of a plumbing be calculated.

Jack
RPW

Modshack · 03-05-2010, 10:41 AM

Quote:

Originally Posted by jborsos

Modshack,

Excellent summary. I agree with you, engine torquing under track day or extreme driving events could be as much as 4-5 inches. Couple this with hose contraction of up to 10% reinforces how critical the routing and length of a plumbing be calculated.

Jack
RPW

Thanks for your participation Jack. I've done 3 cooler installs over the years using parts from your Company, and never had an issue with any of them. I suspect the conclusion above is probably the culprit here..

Steve

Billy830 · 03-06-2010, 11:39 AM

I think we are getting a little crazy on the oil cooler hose bit. As I said in a previous post I spent 23 years in Jet Enginge Test Research and Development. We used aeroquip hoses that were CRIPMED as we had our own shop with the tools to do so. We made sure that hoses were not too long and or too short. We used high temp anti chaffing clamps to route the hoses. Any where that we thought chaffing was a possibliity we added that protection.
My position on this is do right the first time, don't try to reengineer a simple process. You can order the stainless steel crimped hoses with the cooler or have hoses made at say, Napa or at any hydraulic shop that makes hoses in your area to the proper length. The torqueing of the engine and its result on the hoses to me is a mute point if they are clamped and routed properly. Spend a couple of more bucks and time and you will not have to worry if you are going to dump your oil or not.

The pilot of a Jet fighter dose not have time to worry about things like that. Yes the jet engine does at times have premature failures and their RPMS are 50-60K not 8K.

Modshack · 03-07-2010, 06:10 PM

Quote:

Originally Posted by Billy830

The torqueing of the engine and its result on the hoses to me is a mute point if they are clamped and routed properly. .

I think that was my point. The fact that both socketless rubber AND socketed stainless lines have come off would point to installation issues rather than random hardware failure.

Mike · 03-09-2010, 08:22 AM

Quote:

Originally Posted by Modshack

I think that was my point. The fact that both socketless rubber AND socketed stainless lines have come off would point to installation issues rather than random hardware failure.

While I am not ruling out installation or hose length as issues, I did have 3000 track miles on the setup last summer/fall and when I changed the oil a week before the line failed, everything was nice and secure. I would think if the hose was too short, it would have come off much earlier, and not during warmup laps.

Modshack · 03-09-2010, 08:38 AM

Quote:

Originally Posted by Mike

While I am not ruling out installation or hose length as issues, I did have 3000 track miles on the setup last summer/fall and when I changed the oil a week before the line failed, everything was nice and secure. I would think if the hose was too short, it would have come off much earlier, and not during warmup laps.

I think yours was more of the constant in and out flex from the engine torquing Mike. I'm sure your install was up to speed. The hose stiffness undoubtedly contributes here even with some slack. 3000 track miles probably took their toll. (see the blow off analysis on the previous page)

03-06-2010, 11:39 AM	#3 (permalink)
Billy830 Base Member Join Date: Dec 2009 Location: Port Saint Lucie Fl. Age: 79 Posts: 31 Drives: 370Z Mag Black 6sp m Rep Power: 17	Oil cooler installs I think we are getting a little crazy on the oil cooler hose bit. As I said in a previous post I spent 23 years in Jet Enginge Test Research and Development. We used aeroquip hoses that were CRIPMED as we had our own shop with the tools to do so. We made sure that hoses were not too long and or too short. We used high temp anti chaffing clamps to route the hoses. Any where that we thought chaffing was a possibliity we added that protection. My position on this is do right the first time, don't try to reengineer a simple process. You can order the stainless steel crimped hoses with the cooler or have hoses made at say, Napa or at any hydraulic shop that makes hoses in your area to the proper length. The torqueing of the engine and its result on the hoses to me is a mute point if they are clamped and routed properly. Spend a couple of more bucks and time and you will not have to worry if you are going to dump your oil or not. The pilot of a Jet fighter dose not have time to worry about things like that. Yes the jet engine does at times have premature failures and their RPMS are 50-60K not 8K.

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03-05-2010, 10:11 AM	#1 (permalink)
jborsos Base Member Join Date: Mar 2010 Location: Frankin, IN Posts: 9 Drives: 2011 VW Jetta Rep Power: 17	Modshack, Excellent summary. I agree with you, engine torquing under track day or extreme driving events could be as much as 4-5 inches. Couple this with hose contraction of up to 10% reinforces how critical the routing and length of a plumbing be calculated. Jack RPW