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Re: Oil Pressure gauge fitting on '68 engine [Re: Nate Carey] #485757
04/14/13 9:57 pm
04/14/13 9:57 pm
Joined: Jan 2012
Posts: 338
florida
L
LeonGustus Offline
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Joined: Jan 2012
Posts: 338
florida
P.M. sent thanks, Leon


October of 69-A50R
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Re: Oil Pressure gauge fitting on '68 engine [Re: Mr Mike] #486227
04/17/13 9:30 pm
04/17/13 9:30 pm
Joined: Jan 2012
Posts: 255
Oahu Hawaii USA
Roger Gulledge Offline
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Roger Gulledge  Offline
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Posts: 255
Oahu Hawaii USA
Sorry for not responding earlier but been off line for the last week.

Adam...I did not block off the stock breather. Intake is at front of case and exhaust is from top of valve cover. Performance wise I think it pulls harder in mid and high range,and oil stays cleaner longer. The yellowish color of new oil stays yellow longer, doesn't darken as quickly. Don't know if that translates to cleaner. smile

The gauge I used was a Stainless Steel-Case Liquid-Filled from McMaster-Carr. McMaster-Carr Type in 3850K3 in the search. Quite happy with it so far, about 3,000 miles. I have a SRM oil pump installed, hot idle is 14-20 and 60 at high revs. The liquid-filled is the way to go, needle is rock solid.

Leon...You are correct,tried to isolate vibration with rubber grommets .

[Linked Image]


Roger G
70 Thunderbolt
Re: Oil Pressure gauge fitting on '68 engine [Re: Nate Carey] #486251
04/18/13 12:40 am
04/18/13 12:40 am
Joined: Jan 2012
Posts: 338
florida
L
LeonGustus Offline
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Joined: Jan 2012
Posts: 338
florida
Roger - Your bracket results in a higher position relative to the smiths clocks than my piece of scrap. I will try to copy yours. but you must have a nicer hacksaw than mine.


October of 69-A50R
Re: Oil Pressure gauge fitting on '68 engine [Re: DavidP] #486354
04/18/13 8:41 pm
04/18/13 8:41 pm
Joined: Sep 2011
Posts: 76
NEW YORK
E
eddiebrannan Offline
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eddiebrannan  Offline
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Posts: 76
NEW YORK
Originally Posted by DavidP


I have a 1970 A65 with an oil pressure gauge and want to replace the hose. Do you know if this is the actual fitting required? For the purposes of comparison, or if I go to McMaster Carr instead, can you let me know what internal diameter and fittings are correct for this application? I have a Sunpro gauge.

Last edited by eddiebrannan; 04/18/13 8:44 pm.
Re: Oil Pressure gauge fitting on '68 engine [Re: Nate Carey] #486525
04/19/13 11:38 pm
04/19/13 11:38 pm
Joined: Oct 2008
Posts: 5,285
Gnashville
DavidP Offline

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Gnashville
PM sent to Eddie:
For the rest of you, those line kits include 1/8" NPT fittings for the case and the gauge. The hose is 4AN, pretty much brake line.
The kits are available from Summit, Pegasus, and on eBay. Search for Quickcar brand.


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
72 T120V cafe project "Mr. Jim"
72 T150V "Wotan"
Re: Oil Pressure gauge fitting on '68 engine [Re: Nate Carey] #487264
04/24/13 5:14 pm
04/24/13 5:14 pm
Joined: Sep 2011
Posts: 76
NEW YORK
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eddiebrannan Offline
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NEW YORK
Thanks again David. FYI measuring mine, 36" will be fine. My OP gauge is mounted to the left of my (central) speedo, and with the connection at the right side of the engine case the extra few inches are ok.

Re: Oil Pressure gauge fitting on '68 engine [Re: eddiebrannan] #487483
04/26/13 3:22 am
04/26/13 3:22 am
Joined: Sep 2011
Posts: 76
NEW YORK
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eddiebrannan Offline
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NEW YORK
OK gents, problem. I bought the recommended cheaper line (TK), only to find that neither fitting was the correct size. It was a case of sausage up an alleyway/hotdog down a hallway at each end. Unfortunately I don't have a micrometer to measure the fittings, so I'm hoping some eyeballing from you knowledgable chaps will help.

This is the crankcase end: [Linked Image]

This is the gauge end: [Linked Image]

This is the line I bought: line .

Any help would be very much appreciated.

Re: Oil Pressure gauge fitting on '68 engine [Re: Nate Carey] #487490
04/26/13 4:14 am
04/26/13 4:14 am
Joined: Oct 2008
Posts: 5,285
Gnashville
DavidP Offline

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DavidP  Offline

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Joined: Oct 2008
Posts: 5,285
Gnashville
I have one cheap gauge around here, the male fitting measures 0.300", not sure what thread that is but the gauge came with an adapter to 1/8" pipe. I also have a Sunpro with an 1/8" NPT male, measures 0.38".
Doesn't that kit come with proper male and female adapters?
Did you change the adapter in your case?


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
72 T120V cafe project "Mr. Jim"
72 T150V "Wotan"
Re: Oil Pressure gauge fitting on '68 engine [Re: Nate Carey] #487553
04/26/13 6:54 pm
04/26/13 6:54 pm
Joined: Sep 2011
Posts: 76
NEW YORK
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eddiebrannan Offline
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eddiebrannan  Offline
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Posts: 76
NEW YORK
Well I determined that both ends need to be 1/8, but I believe NPT is tapered, and these are not. I'll re-examine the adapters that came with the kit to see if they can be made to work. If not then McMaster Carr will be getting a call.

Last edited by eddiebrannan; 04/26/13 6:55 pm.
Re: Oil Pressure gauge fitting on '68 engine [Re: Nate Carey] #487565
04/26/13 8:43 pm
04/26/13 8:43 pm
Joined: Sep 2011
Posts: 76
NEW YORK
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eddiebrannan Offline
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eddiebrannan  Offline
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Joined: Sep 2011
Posts: 76
NEW YORK
with the hose kit in hand, they sent a line with 1/4" fittings with 1 x M-F 3/16" adapter and 1 x M-M. In other words totally bloody useless. i've ordered two adapters from mcmaster carr.

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