A while back ROME said if you have a T-4 seal up the T-1 filter.

[nextgen]

Well I have a T-4 and it has the large screw on oil filter. If I rember it was because the stock T-1 filter was prone to leaks around the bolts and there is a danger if tightening the large center bolt that can snap and would require the engine to be removed. He said the t-4 filter was all you needed.

Naving leaks in that area I was wondering if any of you guys had any issues .
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[SGKent]

9 ft lbs on the oil strainer nut if you take it off. There is no need to take it off unless you suspect a problem. The T4 has a separate drain plug for changing oil. The nut in question goes onto the oil pickup. It is held in place by a bolt that goes from one side of the case to a threaded boss on the inside. Tightening it by hand, or going over 9 ft lbs will cause that cross bolt to bend and snap the aluminum boss inside the case. To repair requires a complete disassembly of the engine, cleaning and someone very skilled with tig/heliarc welding. My advise would be to leave that nut alone. Then repeat over and over until it is drilled into your head, 9 ft lbs. 9 ft lbs. 9 ft lbs. The engine is useless if you break it until repaired. It is a very expensive oops.

TCash image

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"Most people don't know what they're doing, and a lot of them are really good at it." - George Carlin

[Wreck]

I remove it every oil change ,I like to check for shiny bits . I know its over kill but the service kits aren't expensive . I use a new service kit with gaskets and crush washer . Never had an issue but also understand how easy it is to stuff up.

[raygreenwood]

[raygreenwood]

Here is what it looks like when the gaskets are adhered to the strainer.

I would have to look in my log book but this probably has 30k miles on this gasket set or about 9 oil changes...no leaks.

Ray

[Wreck]

thats a good tip , thanks Ray .

[timvw7476]

It's a nut with flange plus delicate tubular crush washer underneath it.
That in turn tugs on a circular lug that is looped around a case pass-through bolt above it,, all that acts as the 'stay' to exert retaining force on the drain plate & filter screen.
The crush washer is what makes playing with that nut too dangerous for novices.
I did drop my strainer religiously for several years of oil changes & then gave up. There's no reason to do it unless it is a 'new to you' bus & you are doing deep inspection. The crush washer yields & deforms properly right at the threshold of 9 foot pounds torque. It feels similar to a stripping thread to the uninformed.
Scary stuff for a new operator to play with.
Buying a torque wrench calibrated for inch pounds settings is a good idea if you drop your screen regularly. The best tool I found was a Craftsman 3/8" breaker. Lets you sneak up on that crush washer collapse safely. Then a 3/4 foot pound more.

[raygreenwood]

[SGKent]

or you can just cut the filter open each oil change and see anything that is passing thru the system. Filter openers are really inexpensive these days. Not like 10 years ago when they cost a lot, and sawing made its own mess.

Get a Hazet oil drain pan; it has a lip on it the filter sits to drain. And a filter opener. Safer than messing with that strainer on a type 4.

$16 at Autohauz Az

$17 at Amazon

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"Most people don't know what they're doing, and a lot of them are really good at it." - George Carlin

[nextgen]

Years ago one T-4 guy showed me his engine and he had the entire area sealed. Itcould of been welded or for some other way JP Weld . When I asked him why he said, the T-4 had a rear spin on oil filter, the could cause serious problem...
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The TYPE IV UPRIGHT CONVERSION MANUAL
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[nextgen]

I am thinking about it.
_________________
email: [email protected]
The TYPE IV UPRIGHT CONVERSION MANUAL
BEETLE MAGNETIC DEFLECTOR SHIELDS
LETS TALK DUBS https://www.youtube.com/results?search_query=joe+cali+ghia https://letstalkdubs.libsyn.com/ep-200-joe-cali-ty...qI3xJTCzjs

[Rome]

If the ROME in the title refers to me, it likely was not me who said that. I never worked on a type 4 engine and only have one in pieces for a future upright conversion project.