'74 Glastron/Volvo 270 What next?

[Jim Marshall]

Thanks for some good help I installed the rebuilt engine today through the transom. One of the surprises to me was how well the rubber hoses and parts have held up. I am going to replace both bellows, of course but have a few questions.

The Volvo 270 outdrive seems to be in good shape. I have never had a problem with it. What recommendations would you have for pulling it down further? Should seals be replaced? U-joints seem tight. They were replaced once years ago.

Engine--302 ford V8 with 351 heads (how it came new) 200 hp written on valve covers:

I am replacing the locked up starter with a later marine starter.

Carburetor. It has a Holley 450 CFM 4bbl carb one it. There were no J-tubes from the factory. I have a kit but wonder whether to replace it with a new one?

Water pump appears solid but I wonder if it should be replaced.

Raw water pump. It is a Johnson or Jabsco with a plastic housing. I have new impeller and gaskets.

Ignition. It is a Mallory, very simple with centrifugal advance.

Manifolds. I found the parts necessary to replace all gaskets. It is an OSCO with Glastron cast into it. Should I replace the old gaskets on the end caps or leave well enough alone. I plan to pressure test the manifolds up to about 80 lbs pressure.

Intake. I have the old manifold but also have a used Edelbrock much lighter aluminum manifold. Any comments here?

I replaced the control cable to the drive. Thanks to someone who had the problem I checked it and avoided a miserable replacement job with the engine in. Should I disasemble and grease up the control mechanism.

As usual, thanks in advance for the good advice.

Jim

 

[Jim Marshall]

Re: '74 Glastron/Volvo 270 What next?

Some Pix:

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[zbnutcase]

Re: '74 Glastron/Volvo 270 What next?

Lookin good! The old Holley marine carbs didn't have J tubes; you sure it IS a marine carb? If the Edelbrock manifold is the Performer 289, I would use it, if not, use stock one

 

[Jim Marshall]

Re: '74 Glastron/Volvo 270 What next?

The carb came stock with the boat. I bought it new in '74. How would I tell if it is a 289 Performer?

Jim

 

[captmello]

Re: '74 Glastron/Volvo 270 What next?

You could drop the lower case and replace the three orings under there. Clean out the oil screen.

I would change out the water intake fitting and gasket while its apart.


Bolt it back together and do a pressure test.


You checked the intermediate bearings right?

 

[Jim Marshall]

Re: '74 Glastron/Volvo 270 What next?

I replaced the intermediate bearings and seals.

Jim

 

[Jim Marshall]

Re: '74 Glastron/Volvo 270 What next?

Correction, I haven't done anything with the intermediate housing yet. I just replaced the bearings and the seals coming off the shaft that goes from the pilot bearing through the flex plate and through the flywheel housing.

I have yet to open up the upper, intermediate or lower gear housing.

Jim

 

[captmello]

Re: '74 Glastron/Volvo 270 What next?

If you haven't split the drive yet, you may want to pressure test it first.

 

[Jim Marshall]

Re: '74 Glastron/Volvo 270 What next?

Captmello,

I didn't find that in my manuals. Would that mean capping off the bottom holes and applying pressure to the water inlet connector? How many PSI?

Jim

 

[captmello]

Re: '74 Glastron/Volvo 270 What next?

I was referring to the internal part, where the gear lube is.

The only place the water intake could have issues would be between the lower and intermediate assemblies at the oring and at the intake fitting just below the ujoint bellows. Like I said earlier, get a new fitting and gasket.

http://www.iboats.com/Thermostat-Housing-Sierra/dm/*******.059799244--**********.288200785--view_id.173338

 

[Jim Marshall]

Re: '74 Glastron/Volvo 270 What next?

Will do. It looks a bit corroded. Sounds like good advice.

Jim

 

[Jim Marshall]

Re: '74 Glastron/Volvo 270 What next?

I pulled the unit down and found the gears and bearings looked like new. I purchased a seal set and am installing it now. I am impressed with the stern drive unit including machining and fit.

I found some corrosion on the needle bearings and sleeves on the steering pivot mechanism. I noticed that there is a zerk that lubes the needle bearings but nothing else on the rest. Does this usually give problems?

Jim

 

[captmello]

Re: '74 Glastron/Volvo 270 What next?

I replaced the needle bearing in mine over the winter and all the seals and bushings. Hopefully you only have to do this once.

I had corrosion on the pivot tube as well. I was told to turn the tube 180 deg when you install it. If you remember how it was when you took it out. I don't think its a big deal.

 

[Jim Marshall]

Re: '74 Glastron/Volvo 270 What next?

That lockout mechanism is something else with all its springs. I hope I remember how to get it back together. I think they could have done a better job with the lube on the upper shaft. I was tempted to try to put in another grease zerk.

I had a heck of a time getting the tube out. My brass drift destroyed the upper plastic bearing.

By the way, in looking at my manual I noticed that the control shaft lock that keeps locks the outer sleeve was totally missing. It never was there. So, you shift it and the outer casing moves back and forth with the cable. I remember complaining to the dealer that it shifted weird. I had it checked out and he said it was okay. I picked up a new one and look forward to it shifting like it is supposed to.

Anyway, with a few exceptions I am really impressed with the Volvo 270.

Jim