The Stupid Question Thread

[busdaddy]

Thrust cut (oversize) should be specified, usually in mm's, you have to know if your case has been cut before ordering.
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Rust NEVER sleeps and stock never goes out of style.

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[Wildthings]

If you need anything besides standard bearings there is going to be a machinist at play, so let him decide what bearings are needed.

[Jalabert]

Thanks gents,

Yes, machinist at play - settled on the line and crank bore / grind numbers, it's the thrust bit that is the inference puzzle. From reading around it seems that unless there's an obvious problem then there generally isn't anything that can't be dealt with with shims. The last time I measured the endplay was about 20k ago and it was well within spec then. I measured my shims and they're all sub 0.3 mm so AFAIK getting towards the smallest you can get...

Scary bit in progress, etc...
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'73 westy, 1700 type 4 with 34icts

[busdaddy]

Thrust and endplay are two different things, the thrust surface has to be machined when the bearing gets loose in the bore and pounds or wears the case where the bearing fits. It can not be repaired with shims, the oversized bearing takes up the space created by machining and gives the flywheel something solid to push against that's in the correct location.
_________________
Rust NEVER sleeps and stock never goes out of style.

Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!

Слава Україні!

[Jalabert]

Thanks BD - went and checked in with the machinist today and the thrust surface of the bearing, the case and the crank were all in good shape. I would have thought that a problem with the thrust surface would manifest as excessive endplay, though?
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'73 westy, 1700 type 4 with 34icts

[busdaddy]

[Mispeld]

Were EA engines exclusively for 411, 412 and Porshe 914? Did they ALL have the oil filler tube on the breather on top of the engine? Were they ever used in busses or did any of them have the bus style oil filler tube?

I picked up a EA engine longblock that's been sitting for decades. It has the hole on the bottom right to attach the bus type oil filler tube. Maybe it was machined out at some point? I don't know enough about these and searches are not clear.

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Tom
1977 Westy. 2.0 Fuel Injected.

[Wildthings]

[busdaddy]

[wiscowesty]

Happy independance day America. Does anyone.have any insite on the use of multi electrode spark plugs in a air cooled engine? I was searching the web. All the varied opinons confused and hurt my feeble brain. Also they might be a awefull chore to gap correctly. Would such plugs be a burden on coil , points and condenser? Thank you for any knowledge shared on this topic.
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78 westy. F.I., wrassling her back together

[AndyW31]

What's a realistic temperature to set a "Save my Bug" dipstick to for a 71 Westfalia? It seems I can set it off after about an hour of rolling roads at 55 on warmer days. Checking with an ir gun on the case below the distributor 235f seems right on from the factory. Is my bus running hot, or should I adjust the calibration up to 250f or so? I know the dipstick isnt the best way to watch temperature, but figure its a good warning to pull over or slow down.

I've got full tins, svda distibutor timed about 28-29 degrees with the vacuum unplugged, empi 34 pict 3 with 130 main jet. I accidentally burned a piston last summer, think it was a combination of timing in the 31-32 range and getting in a hurry on a short stretch highway, so its a got about 2k miles on a roughly rebuilt (new bearings, pistons/cylinder, exhaust valves) stock engine.