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Mark 75 Super Convertible
Samba Member
Joined: December 20, 2014
Posts: 199
Location: Cleveland/Fort Myers Beach FL.
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 Posted: Tue Apr 20, 2021 7:34 pm Post subject: Factory oil cooler question. |
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| Does the factory oil cooler ever go bad? Should they ever be replaced, just because the motor is 50 plus years old? I got my Bug started this weekend for the first time in 29 years. The oil light went out when I was cranking it, and it never came back on while it was running, so I'm hoping the motor is ok. I'm just being careful, and I don't mind spending the money (WW has one for $129 I think) if anyone thinks it's a good idea, or a waste of money. |
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VW_Jimbo 
Samba Member
Joined: May 22, 2016
Posts: 9960
Location: Huntington Beach, CA
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| Posted: Tue Apr 20, 2021 10:17 pm Post subject: Re: Factory oil cooler question. |
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They do go bad. Seen many. Typically get clogged up with gunk. It never cleans out, so best bet is to get a new one.
Good to hear you got it running!
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Jimbo
There is never enough time to do it right the first time, but all the time necessary the second time!
| TDCTDI wrote: |
| Basically, a whole bunch of fuckery to achieve a look. |
| 67rustavenger wrote: |
GFY's Xevin and VW_Jimbo!  |
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bilbo939
Samba Member
Joined: July 15, 2020
Posts: 59
Location: Isle of Wight, UK
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| Posted: Wed Apr 21, 2021 3:03 am Post subject: Re: Factory oil cooler question. |
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They sit at the top of the oiling system, so a sitting motor the oil will have drained mostly out maybe saving it from gunking, but in operation they gunk up and are impossible to clean, get pinhole leaks which only open when warm. It's good insurance to replace with a good quality new unit. These old girls rely heavily on their oil for cooling so for peace of mind its worth it.
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'71 1302-S
'03 T4 2.5 TDI
'04 Golf 1.9 TDI |
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Q-Dog
Samba Member
Joined: April 05, 2010
Posts: 8699
Location: Sunset, Louisiana
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| Posted: Wed Apr 21, 2021 4:29 am Post subject: Re: Factory oil cooler question. |
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I am not in the habit of replacing perfectly good parts. Leave it alone and worry about something else.
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Brian
'69 Dune Buggy
'69 Beetle Convertible
'70 Beetle |
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Mark 75 Super Convertible
Samba Member
Joined: December 20, 2014
Posts: 199
Location: Cleveland/Fort Myers Beach FL.
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| Posted: Wed Apr 21, 2021 5:45 am Post subject: Re: Factory oil cooler question. |
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| VW_Jimbo wrote: |
They do go bad. Seen many. Typically get clogged up with gunk. It never cleans out, so best bet is to get a new one.
Good to hear you got it running! |
Thanks, I was really happy! Does that cooler just bolt on? From the WW pictures it looks like it just sits on top of the case, with of course an inlet and outlet for the oil after it goes through the cooler. I don't have to open the case to install that do I? |
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Cusser
Samba Member
Joined: October 02, 2006
Posts: 31362
Location: Hot Arizona
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| Posted: Wed Apr 21, 2021 7:24 am Post subject: Re: Factory oil cooler question. |
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| Mark 75 Super Convertible wrote: |
| Does that cooler just bolt on? From the WW pictures it looks like it just sits on top of the case, with of course an inlet and outlet for the oil after it goes through the cooler. I don't have to open the case to install that do I? |
No - one does not open the case to replace an oil cooler. A late case has 2 holes for two studs from the doghouse cooler adapter to pass through, then secured by 8mm x 1.25mm nuts on those, and a similar nut on a stud protruding up from the case. So a doghouse cooler needs 4 seals.
And 1970 and earlier cooler mounts directly to the case, no adapter. Earlier than 1970 use 6mm x 1.0mm mounts though.
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1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
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Michael Ambrozik
Samba Member
Joined: October 17, 2020
Posts: 631
Location: San Jose, CA
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| Posted: Wed Apr 21, 2021 8:39 am Post subject: Re: Factory oil cooler question. |
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| If you do replace the oil cooler you will need to drop the engine as it will be easier to remove the doghouse to remove the cooler. I have done it with the engine in the car but you need to remove the hood, the hinge brackets, and anything in the way, and if the flaps are still in the doghouse/shroud well good luck. makes the job hard. |
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infiniteLoop
Samba Member
Joined: October 09, 2020
Posts: 265
Location: Empire State
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| Posted: Wed Apr 21, 2021 9:16 am Post subject: Re: Factory oil cooler question. |
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| As far as you know, you have a good oil cooler. Synthetic oil should keep it clean. |
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Mark 75 Super Convertible
Samba Member
Joined: December 20, 2014
Posts: 199
Location: Cleveland/Fort Myers Beach FL.
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| Posted: Wed Apr 21, 2021 11:59 am Post subject: Re: Factory oil cooler question. |
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| Cusser wrote: |
| Mark 75 Super Convertible wrote: |
| Does that cooler just bolt on? From the WW pictures it looks like it just sits on top of the case, with of course an inlet and outlet for the oil after it goes through the cooler. I don't have to open the case to install that do I? |
No - one does not open the case to replace an oil cooler. A late case has 2 holes for two studs from the doghouse cooler adapter to pass through, then secured by 8mm x 1.25mm nuts on those, and a similar nut on a stud protruding up from the case. So a doghouse cooler needs 4 seals.
And 1970 and earlier cooler mounts directly to the case, no adapter. Earlier than 1970 use 6mm x 1.0mm mounts though. |
Ok, thank you. |
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viiking
Samba Member
Joined: May 10, 2013
Posts: 2667
Location: Sydney Australia
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| Posted: Wed Apr 21, 2021 2:55 pm Post subject: Re: Factory oil cooler question. |
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Cusser is right about the originally fitted oil cooler dimensions BUT be aware that a different oil cooler may have been fitted after market and these MAY have what they call adapter oil seals. You’ll see some of these for sale.
However it is more likely that you do have what he said. Just be aware.
_________________
1968 1500 RHD Lotus White Beetle since birth. In the hospital for major surgery
1966 Lancia Flavia Pininfarina Coupe - in the waiting room
Discharged: 1983 Vanagon, 1974 1800 Microbus,1968 Low Light,1968 Type 3 |
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Zundfolge1432
Samba Member
Joined: June 13, 2004
Posts: 12467
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| Posted: Wed Apr 21, 2021 4:02 pm Post subject: Re: Factory oil cooler question. |
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| Q-Dog wrote: |
| I am not in the habit of replacing perfectly good parts. Leave it alone and worry about something else. |
I’m still working from a stash of good used from 25 years ago. We were smart enough to clean them out using MEK and parts washer. If they cleaned out and held pressure we cleaned and combed the fins if needed. There was a belief type 4 cooler gave some extra cooling power but I’ve seen many big 2000 and larger cc using a stock type 1 doghouse cooler. Make the extra effort to install the Hoover bit, the foam seal and all the rubber seals as needed.
Look they are date coded.
Shine a light make sure it’s clean so air can get through it. You can comb out fins carefully using a pick.
Last edited by Zundfolge1432 on Wed Apr 21, 2021 4:10 pm; edited 1 time in total |
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Glenn
Mr. 010
Joined: December 25, 2001
Posts: 76911
Location: Sneaking up behind you
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| Posted: Wed Apr 21, 2021 4:08 pm Post subject: Re: Factory oil cooler question. |
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| Zundfolge1432 wrote: |
| There was a belief type 4 cooler gave some extra cooling power but I’ve seen many big 2000 and larger cc using a stock type 1 doghouse cooler. Make the extra effort to install the Hoover bit, the foam seal and all the rubber seals as needed. |
That's what I did.. stock T1 oil cooler on a 2180... works just fine.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
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VW_Jimbo
Samba Member
Joined: May 22, 2016
Posts: 9960
Location: Huntington Beach, CA
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| Posted: Wed Apr 21, 2021 9:06 pm Post subject: Re: Factory oil cooler question. |
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It’s what I have as well! 2127 spinning 7500 rpms! Flys like a bat out of hell and runs cooler than my stock 1600! Go figure. I did do the Hoover mods to my case and lifters! But, I do have low pressure issues at idle, fully warmed up! Go figure!
_________________
Jimbo
There is never enough time to do it right the first time, but all the time necessary the second time!
| TDCTDI wrote: |
| Basically, a whole bunch of fuckery to achieve a look. |
| 67rustavenger wrote: |
| GFY's Xevin and VW_Jimbo! |
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