Timing advance or retard on MF 1155 w turbo????

MF rules · Jun 11, 2014

I'm in the process of installing a M&W turbo kit on my MF 1155 that I farm with. I have to take the Simms injection pump off and have it rebuilt. My question is that when I install this turbo do I have to advance or retard the timing? How much? I have some M&W literature but it says nothing about setting/adjusting timing?I'm going to have the injection pump set at 200 horsepower. Any info would be helpful! Thanks

Dieseltech · Jun 12, 2014

If you are going to farm with it leave it stock, 28 degrees BTDC is best. Too much advance will make it start harder, too much retard helps starting and boost pressure somewhat, but the heat will be in the exhaust instead of the engine. Had a 1155 puller I reset the timing on, came in at 10 degrees BTDC, tractor had a 3000 RPM class limit. All it would do was make the exhaust cherry red quickly. When reset to stock 28 BTDC it started and ran much better. Too much advance will also cause the peak cylinder pressure to be early, instead of just after TDC, when the rod/crank angle is ready for the downward force.

MF rules · Jun 12, 2014

(quoted from post at 12:25:07 06/12/14) If you are going to farm with it leave it stock, 28 degrees BTDC is best. Too much advance will make it start harder, too much retard helps starting and boost pressure somewhat, but the heat will be in the exhaust instead of the engine. Had a 1155 puller I reset the timing on, came in at 10 degrees BTDC, tractor had a 3000 RPM class limit. All it would do was make the exhaust cherry red quickly. When reset to stock 28 BTDC it started and ran much better. Too much advance will also cause the peak cylinder pressure to be early, instead of just after TDC, when the rod/crank angle is ready for the downward force.

I appreciate the reply, I will just leave it set at original stock setting then. I'm going to put a pyrometer on it to keep track of EGT 's. In a hard pull what's the top temperature a guy should let it climb to before back off on it!? I believe the temperature probe is installed before the turbo. Don't want to burn it up! Very rarely will I be pulling it hard anyway. Thanks again!

David G · Jun 12, 2014

Perfect description.

Dieseltech · Jun 12, 2014

If you keep it at 1200 degrees or less you will be safe. Some IH Blue Ribbon service specs are 1300, any altitude or load. Better safe than sorry!

Robert Major · Jun 12, 2014

Hi If your going to set this tractor up for 200 hp
and use it hard. I hope you don't find all the
parts, that guys tell me never fall off these
tractors in the pto and transmission, when I comment
on what Ive seen go wrong with them.
Good luck and I hope it works well for You.
Regards Robert

MF rules · Jun 12, 2014

(quoted from post at 03:13:30 06/13/14) Hi If your going to set this tractor up for 200 hp
and use it hard. I hope you don't find all the
parts, that guys tell me never fall off these
tractors in the pto and transmission, when I comment
on what Ive seen go wrong with them.
Good luck and I hope it works well for You.
Regards Robert

Hello Robert,
I have a buddy that has a lot of parts tractors so I'm not scared! If a guy uses his head operating it then it should hold together for long time! I will at the most be putting 100hrs a yr on it anyway. We had one 1155 we bought new in 1973 that was turned up to 180 hp and we pulled the guts out of it and never touched the engine. Had a smoke trail you could see 2 miles away! Only thing we had go out was 1st gear twice(working field gear).....we just wore them out!! No drivetrain issues what so ever! Had 12,000hrs on that tractor and was still running strong when we traded it for new tractor......wish I had it back!!!!

Robert Major · Jun 12, 2014

Thats good you know what can happen and have parts
around. if anything is getting worn you might
find it pretty soon.

A Guy up here turbo'd his,he tractor pulls and
farms with it to. That was around 200 hp and his
kept spitting the pto drive out in the bell
housing.
last time i asked how it was going he said they
turned it down a bit, as his employer( local
wrecking yard) was running out of used pto parts
for it. I have heard of a couple standard V8's
have motors done due to stupidity/ or higher
hours, Generally a good motor with few problems
their. It's kinda like my buddy said about Dodge
diesels round here. The older 5.9 series cummins
was a good motor, just a shame they screwed it up
bolting it to that truck.
The 1135 and 55 Masseys are like that round here
with the trans related/hyd problems, and are
disappearing from farms pretty quick round
here,the odd one is still an auger tractor but not
many even doing that now. If you are happy with
yours that's all that matters really.
Regards Robert

Timing advance or retard on MF 1155 w turbo????

MF rules

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Dieseltech

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David G

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Robert Major

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