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> Oil Pressure sender hose blew out, need help
rgolia
post Oct 23 2017, 09:51 AM
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So last night the hose from the engine to the oil pressure sender blew out and sent oil everywhere. fortunately I was about 1 mile from home. Lot of oil everywhere, hopefully I did not fry the engine. of course to figure that out I need to get a new sender in place. I would like to have a sender that works the green idiot light and can also work a gauge and of course I would rather not have a hose after this incident. Any suggestions on the sender type and where to get it and what to expect when i try to restart the car...after adding oil of course! (IMG:style_emoticons/default/sad.gif)
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rgolia
post Oct 31 2017, 09:46 AM
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Got oil back in it and fired it up. After a short but painful squeal it fired up and ran. I let it idle for about 5 mins. Didn't sound bad, but there was what sounded like valve clatter on a beetle, although less noisy than a beetle. Will do a real road test run after I change the oil again this weekend. I am not confident that it will pass the test. I afraid that I am gonna need to start listing engine rebuild options. Parameters for the rebuild:

- It is a numbers matching car so keeping the case is a plus
- I currently have Weber 44s
- I would like more power but want to have heat exchangers
- I do not want the car to be loud, I want to keep my exhaust as is (I have a borla unit)
- I do not want to spend more on the engine than the car is worth (thats the wife talking)
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DM_2000
post Oct 31 2017, 05:00 PM
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QUOTE(rgolia @ Oct 31 2017, 11:46 AM) *

Got oil back in it and fired it up. After a short but painful squeal it fired up and ran.


That's usually a very bad sign, at most an engine with wear will rattle until oil pressure is built up. Did the noise occur during cranking or immediately after the engine fired?

Are you sure the alternator belt is tight? A lose belt will sequel then suddenly get quiet as the battery recharges.

QUOTE(rgolia @ Oct 31 2017, 11:46 AM) *

I let it idle for about 5 mins. Didn't sound bad, but there was what sounded like valve clatter on a beetle, although less noisy than a beetle.


If the engine is louder than before, there are worn parts. I realize that is is possible to be more critical assessing noises after a problem occurs so that than into account.

On most any engine, connecting rod bearings are the first to fail. A check for this is to warm up the engine then from idle, quickly snap the throttle to 50% and release, you might see 2500 - 3000 RPM in this test. If there is a sharp increase in noise, there is a loose connecting rod bearing. High revs / 100% throttle isn't needed.

QUOTE(rgolia @ Oct 31 2017, 11:46 AM) *

Will do a real road test run after I change the oil again this weekend. I am not confident that it will pass the test. I afraid that I am gonna need to start listing engine rebuild options. Parameters for the rebuild:

- It is a numbers matching car so keeping the case is a plus
- I currently have Weber 44s
- I would like more power but want to have heat exchangers
- I do not want the car to be loud, I want to keep my exhaust as is (I have a borla unit)
- I do not want to spend more on the engine than the car is worth (thats the wife talking)


Sounds like a stockish rebuild would fit your parameters.
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Posts in this topic
rgolia   Oil Pressure sender hose blew out   Oct 23 2017, 09:51 AM
Keith914   Buy a 928 SS braided brake line (Bruce Stone's...   Oct 23 2017, 10:06 AM
bdstone914   Buy a 928 SS braided brake line (Bruce Stone...   Oct 24 2017, 08:20 AM
GregAmy   To clarify...if it was the hose that failed, why d...   Oct 23 2017, 10:40 AM
cuddyk   Check this out. Great kit. http://www.42draftdes...   Oct 23 2017, 10:41 AM
NeunEinVier   Check this out. Great kit. http://www.42draftde...   Oct 31 2017, 11:04 AM
era vulgaris   So last night the hose from the engine to the oil...   Oct 24 2017, 08:14 AM
Vacca Rabite   About the dual senders. I don't like them. Th...   Oct 24 2017, 12:15 PM
Mark Henry   About the dual senders. I don't like them. T...   Oct 24 2017, 02:56 PM
GregAmy   About the dual senders. I don't like them. ...   Oct 24 2017, 02:59 PM
malcolm2   About the dual senders. I don't like them. T...   Nov 13 2017, 01:14 PM
rgolia   Thanks all. I spoke with Chris at Tangerine and h...   Oct 24 2017, 02:33 PM
DM_2000   Thanks all. I spoke with Chris at Tangerine and ...   Oct 24 2017, 04:43 PM
cuddyk   The kit I linked above has 3 available ports so yo...   Oct 24 2017, 04:15 PM
rgolia   Took the strainer out....no metal frags to speak o...   Oct 26 2017, 10:03 AM
'73-914kid   I would cut open your oil filter that was on the c...   Oct 26 2017, 11:32 AM
DM_2000   Motor is probably OK unless it was in poor shape p...   Oct 26 2017, 05:22 PM
Porschef   Ralph, hope all is ok, were you using a grease gun...   Oct 26 2017, 06:45 PM
rgolia   Not sure of the origin of the hose, most likely ca...   Oct 27 2017, 09:57 AM
rgolia   Got oil back in it and fired it up. After a short...   Oct 31 2017, 09:46 AM
DM_2000   Got oil back in it and fired it up. After a shor...   Oct 31 2017, 05:00 PM
GregAmy   - Put suspect numbers-matching engine in the basem...   Oct 31 2017, 10:16 AM
McMark   - Put suspect numbers-matching engine in the base...   Oct 31 2017, 10:23 AM
Dave_Darling   Adjust the valves before you do your road test. I...   Oct 31 2017, 11:03 AM
rgolia   Fired it up this weekend and let it run for 15-20 ...   Nov 6 2017, 03:03 PM
rgolia   Well gave it a good warm up and then hit the road....   Nov 13 2017, 10:59 AM
McMark   A quick refresh isn't outside your skill set. ...   Nov 13 2017, 12:53 PM
pete000   Here is the kit I got from a Miata MX5 performance...   Nov 13 2017, 01:05 PM
Dave_Darling   Here is the kit I got from a Miata MX5 performanc...   Nov 13 2017, 02:45 PM
pete000   Here is the kit I got from a Miata MX5 performan...   Nov 13 2017, 04:21 PM


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