Oil bath air filter breather question

Early Bay Forum

Help Support Early Bay Forum:

wookie

Well-known member
Joined
May 2, 2010
Messages
107
Reaction score
2
Location
Poulton-le-Fylde Lancs
Ok simple question, on a standard setup for a 1969 twinport engine with a standard oil filled air filter there are two large breather outlets on the air filter body.

Obviously one goes to the breather next to the oil filler but which one ? The top one on the air filter or the bottom?

This leads to another question as to what the remaining large outlet in the filter is for and what attaches to it.

Has anyone got a nice clear picture or diagram they could share ?

Thanks in advance !
 

wookie

Well-known member
Joined
May 2, 2010
Messages
107
Reaction score
2
Location
Poulton-le-Fylde Lancs
Ah great thanks for that, I was just concerned it would get messy and oily if I left it but I’ll plug the top one up.

I have one final question the connection from the air filter to the oil filler is different sizes the air filter breather hose was the standard size I think about 12mm but the oil filler connection was much bigger more like 16-17mm is this mix and matched parts ? Ie do I have the wrong parts.

The standard breather hose fits inside the connection at the filler instead of on it which can’t be right ?

Sorry for all the questions!
 

sparkywig

Moderator
Staff member
Supporting Member
Joined
Feb 9, 2008
Messages
11,848
Reaction score
344
Location
mostly here, sometimes there
You've probably got a few mis-matched parts, as far as I'm aware the early air filters had the same size hose as the breather connection.
1968/69 MY buses only came with a 1600 single port, so that's been swapped at some stage.
 

YellowBay69

Well-known member
Joined
May 27, 2019
Messages
131
Reaction score
55
Year of Van
1969
Van Type
1969 Bay Window
Hey both - can I ask a question. The air filter has a flap controlled by a solid cable off the back of fan shroud - I guess to control warm air going through filter until engine warm up….. I remember taking mine off but it has since got lost. Any ideas where I could get a replacement??
 

Martin L

Active member
Joined
May 9, 2021
Messages
38
Reaction score
18
Sorry to jump in on the thread, just checking before heading to busfest tomorow I noticed this cable had come off the oil bath, can't see a way to fix it back on. Should there be a lead weight to help open and close the filter?
 

Attachments

  • image0 (4).jpeg
    image0 (4).jpeg
    69.4 KB · Views: 0
  • image1 (3).jpeg
    image1 (3).jpeg
    68.3 KB · Views: 0
  • image2 (1).jpeg
    image2 (1).jpeg
    145.7 KB · Views: 0

redgaz54

Active member
Joined
Oct 14, 2017
Messages
44
Reaction score
4
Ok simple question, on a standard setup for a 1969 twinport engine with a standard oil filled air filter there are two large breather outlets on the air filter body.

Obviously one goes to the breather next to the oil filler but which one ? The top one on the air filter or the bottom?

This leads to another question as to what the remaining large outlet in the filter is for and what attaches to it.

Has anyone got a nice clear picture or diagram they could share ?

Thanks in advance !
My filter hose now fits inside pipe connection because i fitted the later , much better vacuum controlled type oil bath set up. I think from what your saying your 69 has this type fitted, it wasn't fitted until about 72. My van is a 71 year, it originally had the one year only and unavailable waxstat type flap operated oil bath filter. This had the smaller type hose connection. Hope this helps to explain your mismatch. 😁👍
 

YellowBay69

Well-known member
Joined
May 27, 2019
Messages
131
Reaction score
55
Year of Van
1969
Van Type
1969 Bay Window
Sorry to jump in on the thread, just checking before heading to busfest tomorow I noticed this cable had come off the oil bath, can't see a way to fix it back on. Should there be a lead weight to help open and close the filter?
Pretty sure it’s a solid push/pull cable the comes off the cooling flaps on back of shroud. Not sure how it fixes on (c clip ??) I guess it controls warm air intake until engine is at running temperature.
I may be completely wrong though !
 

Martin L

Active member
Joined
May 9, 2021
Messages
38
Reaction score
18
Pretty sure it’s a solid push/pull cable the comes off the cooling flaps on back of shroud. Not sure how it fixes on (c clip ??) I guess it controls warm air intake until engine is at running temperature.
I may be completely wrong though !
I thought c-clip as well but there isn't a hole in the rod to pass it through.
 

YellowBay69

Well-known member
Joined
May 27, 2019
Messages
131
Reaction score
55
Year of Van
1969
Van Type
1969 Bay Window
Think this is the little fella you need ..
0646C504-4F8A-47DB-9D10-851C1EFF91FC.jpg
 

Latest posts

Top