Date: Sat, 28 Oct 2017 08:13:20 -0400
Reply-To: Dave Bohannan <fjazzbass@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dave Bohannan <fjazzbass@GMAIL.COM>
Subject: Re: UPDATE RE: leaking cap nut? 1.9er
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Upon initial clockwise twist it did not seem loose…
During loosening, it did its normal groaning and creaking, threads seemed clean, and I didn’t see any remnants of sealant under the cap nut.
Cleaned the threads, inside and out, ran the cap nut over a piece of sand paper, cleaned mating surface put a dab of the right stuff on the cap nut and torque it down… 40 Ft lbs.
Let it sit overnight, more because I was done than set up time for goop… filled it up, bled it and no leak…
Had to run to grab a stamp to mail something so I figured, hey what the heck, lets give it a try. Leaving the post office literally on pulling out of my parking spot is when the transaxle decided to let go… I’ll be jumping under there this morning to investigate…
Thanks so much for all the help…
Sent from Mail for Windows 10
From: Dennis Haynes
Sent: Friday, October 27, 2017 9:50 PM
To: Dave Bohannan
Cc: vanagon list
Subject: RE: UPDATE RE: leaking cap nut? 1.9er
Was that nut loose? Were you able to torque it to 40-41 ft. lbs. and have it stay tight? You will need to drive it a bit to be sure all is good.
Good luck,
Dennis
From: Dave Bohannan [mailto:fjazzbass@gmail.com]
Sent: Friday, October 27, 2017 1:03 PM
To: Dennis Haynes <d23haynes57@hotmail.com>
Cc: vanagon list <vanagon@GERRY.VANAGON.COM>
Subject: UPDATE RE: leaking cap nut? 1.9er
Quick update… reseal and retorque of capnut seems to be successful… I had to fill the cooling system anyway to move the bus to the right place in the driveway. I really cannot see any cracks externally- but I may be in for a head removal anyway because this exhaust manifold is shot and needs to be replaced- the hardware on the same quad of the engine looks like it will try to take a chunk of the head out with it when I try to get the mani loose… more fun and info as I move forward…
Dave
Sent from Mail for Windows 10
From: David Bohannan
Sent: Friday, October 27, 2017 8:40 AM
To: Dennis Haynes
Cc: vanagon list
Subject: Re: leaking cap nut? 1.9er
Thanks Dennis- so is a pressure test just a waste of time at this point? Is it just time to take the head off?
Hindsight being 20/20....
Dave
> On Oct 26, 2017, at 9:58 PM, Dennis Haynes <d23haynes57@hotmail.com> wrote:
>
> I've seen the heads have cracks running from on mounting hole through the 2 sparkplug holes and over to the other mounting hole. They can crack and not immediately leak. You need to be wary now as a lower stud failure or crack there means coolant into the oil and crack in the intake or exhaust port means coolant into the combustion chamber in a way that will destroy the pistons, rings, and cylinders. Slow leaks also destroy the engine bearings even before you see the oi turn into milk.
>
> Dennis
>
>
> -----Original Message-----
> From: Dave Bohannan [mailto:fjazzbass@gmail.com]
> Sent: Thursday, October 26, 2017 3:19 PM
> To: Dennis Haynes <d23haynes57@hotmail.com>
> Cc: vanagon list <vanagon@GERRY.VANAGON.COM>
> Subject: Re: leaking cap nut? 1.9er
>
> Thanks, Dennis…
>
> This might be the price I’m paying for buying an used engine… It’s done great for the past 7 months, No incidents, coolant level and temp normal….. but now I see this….
>
> It WAS leaking from that little hose and I repaired that early on- maybe the system wasn’t as healthy as I thought it was.
>
> I’ll inspect for cracks, reseal cap nut and go from there…
>
> Thanks!
>
> Dave
>> On Oct 26, 2017, at 3:13 PM, Dennis Haynes <d23haynes57@hotmail.com> wrote:
>>
>> One of two choices. The stud has failed causing the nut to be loose or the more common the head is cracked. It seems the 1.9L do this more often. My guess is that anytime the there is a cooling system problem the heads are not kept filled what gets exposed above the coolant level cracks from the sudden temp changes. The front drivers side is really prone as there is nothing forcing coolant or bleeding at that corner. The right side gets purged anytime a heater valve is open. This was a major fix in the 2.1L cooling system.
>>
>> Dennis
>>
>> -----Original Message-----
>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Dave Bohannan
>> Sent: Thursday, October 26, 2017 2:58 PM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: leaking cap nut? 1.9er
>>
>> Just like the subject says…
>>
>> Why am I leaking out of only one (that I can yet see) cap nut?? Top driver rear…
>>
>> Draining coolant, re-sealing with TRS and will try another pressure test…
>>
>> Any thoughts? Anyone?
>>
>> Dave
>> 85
>> Baby Bus
>
