Re: Tilt and trim trouble
it depends upon model and rust.
Parts are not available for eaton motors and they should be replaced with newer design
Parts for oildyne are strictly controlled. They are usually not worth the cost of repairing due to insane parts pricing.
If you have an oildyne or eaton motor then you can find replacement on iboats, ebay, amazon, googleshop for $150-$300. If it is under $200 new then it is chinese and won't last nearly as long as an OEM, ARCO, SiERRA. The original motor by parkerhannafin (oildyne) is the highest quality of any brand and typically lasts 15-20 years if properly installed.
Prestolite motors can be rebuilt for around $100 if there is no rust. A properly rebuilt prestolite is of equal or better quality to a new Arco or Sierra. If you can rebuild your old prestolite for same cost as new chinese and can wait then it is your best value for sure. If a prestolite has any TWO out of three conditions then the cost of rebuild may be too much (get an estimate first and make sure the estimate includes all items of a proper rebuild):
1) the upper bearing or brush card has rust (both are part of a $40 brush cover)
2) the armature has rust pits where it contacts either upper or lower bearing
3) the field frame has broken magnets or needs the windings removed & re-taped*
*some magnet breaks are repairable
difficulty varies by model. 2w are usually easier than 3w. the key tricks are to assemble armature into brush cap and then lower frame onto it whenever possible. if wiring prevents frame from being lowered into place then use unwaxed dental floss to tie back brushes.
NEVER, ever, EVER reuse an old gasket or seal. If you can't get the new seal then take the motor to a professional. the seal is the most important part to get right for durability.
