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Old Girl 1978 Roper


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#691 larrybl ONLINE  

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Posted June 20, 2015 - 10:33 PM

It looks like the minor leak is around the oil pan gasket, the major leak seems to be at one of the pan bolts. Yes I checked the oil drain and it is clean.

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#692 KennyP ONLINE  

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Posted June 21, 2015 - 03:36 AM

Glad you found the source. I use a small amount of sealant, being careful the 'squeeze out' goes to the outside.



#693 MH81 ONLINE  

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Posted June 21, 2015 - 06:22 AM

You may wish to check the pan and make sure it's flat, surface some if needed.
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#694 Bmerf ONLINE  

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Posted June 21, 2015 - 07:01 AM

Do the bolt holes go all the way through into the crankcase area? Might need to put a little sealant on the threads. I don't know anything about Onans.



#695 larrybl ONLINE  

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Posted June 21, 2015 - 10:40 AM

Thanks all. I'll drain the oil and pull the pan tonight. Not sure why it would be leaking around the bolt area. The gasket area is still a small seepage, if it was just that, I wouldn't even have noticed a leak. It was mentioned that I look into a copper line for the oil pressure gauge. I'll see what I can find since I am back into her. I need to re-route the line anyhow as I had it going through the shroud where the pulse pump line entered. Makes taking the front shroud off a PITA. I need to mow the yard today, so it will be this evening before I can post up some pictures. 



#696 larrybl ONLINE  

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Posted June 21, 2015 - 12:32 PM

Well Mowing the grass was put on hold, So I drained the oil and pulled the pan.

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#697 larrybl ONLINE  

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Posted June 21, 2015 - 12:38 PM

Upon close inspection it doesn't look like the gasket compressed properly. The bolts were tight, but felt like they were binding on something like sealant (not used) when removed. The bolts were covered in something (not oil or sealant) more like old gasket material. The bolt holes are really cruddy. I don't think the pan fully tightened. Any suggestions on cleaning up the bolt threads?

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#698 larrybl ONLINE  

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Posted June 21, 2015 - 04:17 PM

I think I may have found the problem! All 4 oil pan bolts are bent. This would explain the binding, and not allow for proper torque. I'll pick up new ones tomorrow.

https://www.youtube....eature=youtu.be


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#699 UncleWillie ONLINE  

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Posted June 21, 2015 - 06:12 PM

Wow that is odd. Hopefully it fixes the leak.
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#700 larrybl ONLINE  

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Posted June 22, 2015 - 09:00 PM

I picked up new bolts today. I Proceeded to clean out the thread holes with carb cleaner and Q-tips The one at the oil filter (the leaky one) the bolt wouldn't go in all the way. I marked the depth and I was shy 1/2" of threads. I kept spraying with carb cleaner and running the bolt in a little further each time, wiping the bolt threads each time. Lots of grey muck, but finally got the bolt to go all the way in. 

Inspected the gasket and gasket area closely. The gasket looks fine, but there is only about 1/4 gasket contact area on 5/8 of pan area. This got me to thinking of applying a very thin coat of sealant on both surfaces only where the gasket contacts. I tested applying the sealant (Permatex Black) with my finger. I should be fine re-using this gasket, but I still plan on ordering another for insurance.

PS the clutch bracket has been turned in to have a gusset added. I'll pick these up on Friday, and re-assemble it this Saturday while waiting for the new owner of BMP to show up to pick him up.

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#701 MH81 ONLINE  

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Posted June 22, 2015 - 10:22 PM

I hope you found bmp a good home. He's part of the family here.
Glad you got that hole cleaned.
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#702 UncleWillie ONLINE  

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Posted June 23, 2015 - 12:53 PM

Larry get a set of pics for those impossible to reach places. makes cleaning bolt holes much easier.
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#703 larrybl ONLINE  

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Posted June 23, 2015 - 09:58 PM

I got the oil pan re-installed, but I buggered up the feral on the oil line while re-routing it. Oh well, it was suggested to use a copper line so a stop at Pep Boys, AutoZone, O' Relies, etc. is in order tomorrow.

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#704 KennyP ONLINE  

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Posted June 24, 2015 - 04:51 AM

I use the copper line on mine. The plastic gets brittle with the heat and can break at any time its moved.


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#705 larrybl ONLINE  

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Posted June 24, 2015 - 07:31 PM

Working on it. Between the Job, House maintenance (had to replace the oven element, or no supper) and mowing the back yard. This is all further I got tonight.

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