From 1300 to 1500

[Itskyle]

Can't seem to find a decently priced 1300 engine here locally. Do have a line on a 1500. Seems like a lot of the work I've done has been making my 66 more like a 67. Do you guys think anything needs to be changed to swap out the engine?

[darzoom]

The 1500 is a 12 bolt motor so the 6 volt starter gear (bendix/solenoid) will not mesh with a 12 volt starter. If you are not changing the car to 12 volt, you would need to address the gear mismatch with a 12 volt solenoid.

If you stay with the 12 volt flywheel, you would need to clearance the transaxle housing as the flywheel is larger. You cannot install the 6 volt flywheel on the 12 volt crank without machining the 6 volt. They mate differently to the crankshaft and are different diameters. The crank ends are different.

The only 6 volt flywheel that fits on a 12 volt style crank was used in the 1966 type 3. If you could find one of those (needle in a haystack) you would be golden and not have to change anything.

The 12 volt flywheel is an o-ring style you cannot install a 12 volt flywheel as it has a smaller diameter where it fits over the crank and will not seat all the way down. and will come loose and ruin the crank and the flywheel.

Bottom line, if you go to the 1500, change the flywheel, solenoid, clearance the transaxle housing and all clutch components as 12 volt is 200 mm not 180 like the 6 volt.

I will assume you are using your 6 volt engine components.

Good luck!

[Itskyle]

The 1500 is a 12 bolt motor so the 6 volt starter gear (bendix/solenoid) will not mesh with a 12 volt starter. If you are not changing the car to 12 volt, you would need to address the gear mismatch with a 12 volt solenoid.

If you stay with the 12 volt flywheel, you would need to clearance the transaxle housing as the flywheel is larger. You cannot install the 6 volt flywheel on the 12 volt crank without machining the 6 volt. They mate differently to the crankshaft and are different diameters. The crank ends are different.

The only 6 volt flywheel that fits on a 12 volt style crank was used in the 1966 type 3. If you could find one of those (needle in a haystack) you would be golden and not have to change anything.

The 12 volt flywheel is an o-ring style you cannot install a 12 volt flywheel as it has a smaller diameter where it fits over the crank and will not seat all the way down. and will come loose and ruin the crank and the flywheel.

Bottom line, if you go to the 1500, change the flywheel, solenoid, clearance the transaxle housing and all clutch components as 12 volt is 200 mm not 180 like the 6 volt.

I will assume you are using your 6 volt engine components.

Good luck!

I appreciate the luck wishes. Being in between jobs right now, kind of need all the luck I can get.

My engine is a 1300 from possibly a vw bus of that same era. It has a 12 volt coil, regulator, generator, and distributor. The starter I got was identical to the 6 volt starter down to the # of teeth and the bearing was the same diameter. The only difference was a 12 volt solenoid. This was figured out by the sound of the started being of a lower pitch than the 6 volt running on 12 volt.

The reason why I am seeking a new (to me) engine is that the current engine leaks oil like BP's wet dream. Is it possible between the two engines to mix and match the parts to get the 1500 to work?

As far as finding an elusive flywheel from a 66 square back, that isn't that big of an issue. I know where I can find a square back of that vintage around these parts.

For me, though I wouldn't want to endanger a square back just to keep herbie going. I used to have a squareback, and had many fond memories in the back of that car. So, I just can't bear myself to turn one of those more down th path of being inoperable.

The vw scene isn't as prevalent here in the Midwest as it is in sunny so cal.

Kyle

[darzoom]

If you get the 1500 with flywheel and clutch, the only thing you will need is a solenoid with teeth yo match and maybe a bushing change. The trans housing will need to be clrearnaced. Seem you have everything else.

[Blue Baron]

The two engines are basically interchangable.

You cannot install the 6 volt flywheel on the 12 volt crank without machining the 6 volt. They mate differently to the crankshaft and are different diameters. The crank ends are different.

This is incorrect. The 1300 uses the same 69mm crank as the 1500 and the same o-ring flywheel, making it a simple swap. The problem is when you try and use a flywheel from the earlier 40hp 1200 engine.

[Bug-Eyed]

The stock 1300 engine in my '66 was recently rebuilt into a 1600 because of the shortage of good 1300 jugs.