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RBL · Posted: Mon Jun 09, 2008 3:17 pm Post subject: Stiff gears

After an hour or so a motorway cruising I find my gearchanges get stiffer. When cold, the gearchanges are easy but stiffen up when hot. I might have asked this before, but is it just due to a worn 'box? Do other people get this problem?
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Porsche 550 spyder replica with Alfa Sprint 1.7 engine

Oggie · Posted: Mon Jun 09, 2008 7:40 pm Post subject:

RBL, how long ago was the new engine and gearbox last put in, I ask this as i think i remember you writing about a bigger engine swap?. I might be wrong but after the bolts on the linkage get warm they might expand a tad, might be worth loosening the bolts a little as they are on nylock nuts. Wink

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PHAT 33

Admin · Posted: Mon Jun 09, 2008 10:02 pm Post subject:

Hi

A few people I know who have had this problem. Normally fixed with a change of gearbox oil (decent synthetic gearbox oil).

All the best

Keith.
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RBL · Posted: Mon Jun 09, 2008 10:40 pm Post subject:

Thanks guys. I thought it might be the linkage, but when detached from the gearbox selector rod, it's really smooth and easy. I changed to a good semi oil and added an additive (ZX1). Other than trying a full synthetic oil, which is an expensive experiment, I'm not sure what's needed other than a rebuild.
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Porsche 550 spyder replica with Alfa Sprint 1.7 engine

Admin · Posted: Tue Jun 10, 2008 12:40 am Post subject:

Hi

Synthetic gearbox oil isn't that expensive.

The guys who ran Minari had a 33 which after a run down the motorway needed 2 hands to get out of gear. New synthetic oil solved the problem.

All the best

Keith
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RBL · Posted: Tue Jun 10, 2008 10:01 pm Post subject:

Thanks Keith, I'll try it
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Porsche 550 spyder replica with Alfa Sprint 1.7 engine