# MECHANICAL **URL:** https://forum.oldboatshome.com/c/engines-and-things-that-run/8.md [Latest](https://forum.oldboatshome.com/latest.md) · [Categories](https://forum.oldboatshome.com/categories.md) · [Tags](https://forum.oldboatshome.com/tags.md) --- ## [Got Mechanical Issues?](https://forum.oldboatshome.com/t/got-mechanical-issues/18)
**Author:** [@matt](https://forum.oldboatshome.com/u/matt)\ **Replies:** 0
This section is for mechanical questions and discussion. --- ## [Type M Engine Question](https://forum.oldboatshome.com/t/type-m-engine-question/522)
**Author:** [@tparsons56](https://forum.oldboatshome.com/u/tparsons56)\ **Replies:** 4\ **Last updated:** [January 20, 2026, 4:14pm UTC](https://forum.oldboatshome.com/t/type-m-engine-question/522 "2026-01-20T16:14:54Z")
I have noticed oil around several of the center head bolts for the last couple of seasons. I do torque the bolts to 65 ft.lbs. each year and the engine runs fine. Is this normal? --- ## [1947 Chrysler S-M6 Engine](https://forum.oldboatshome.com/t/1947-chrysler-s-m6-engine/526)
**Author:** [@jshendrix01](https://forum.oldboatshome.com/u/jshendrix01)\ **Replies:** 1\ **Last updated:** [January 12, 2026, 11:29am UTC](https://forum.oldboatshome.com/t/1947-chrysler-s-m6-engine/526 "2026-01-12T11:29:15Z")
I looking for information for a 1947 Chrysler S-M6 that is in my Chris Craft U-18. I’ve see the spec sheet that Jim Staib has on the Fine Wood Boat website but haven’t been able to find much of anything else. Operating… --- ## [Mbl transmission slipping](https://forum.oldboatshome.com/t/mbl-transmission-slipping/518)
**Author:** [@Dcwood](https://forum.oldboatshome.com/u/Dcwood)\ **Replies:** 3\ **Last updated:** [September 15, 2025, 11:15am UTC](https://forum.oldboatshome.com/t/mbl-transmission-slipping/518 "2025-09-15T11:15:50Z")
Mbl in 1953 23 holiday. Slipping at approx 2100 rpm. Boat is newer to me. Replaced engine oil in case was not non detergent. Currently have the boat in the water, hoping to find out if I need to pull the engine ove… --- ## [283 generator belt replace ?l](https://forum.oldboatshome.com/t/283-generator-belt-replace-l/510)
**Author:** [@Dbonacker](https://forum.oldboatshome.com/u/Dbonacker)\ **Replies:** 6\ **Last updated:** [June 12, 2025, 7:35am UTC](https://forum.oldboatshome.com/t/283-generator-belt-replace-l/510 "2025-06-12T07:35:40Z")
Any tricks to replacing the generator belt on a 1960 283 ? AI says it difficult :expressionless\_face: --- ## [Tachometer signal](https://forum.oldboatshome.com/t/tachometer-signal/474)
**Author:** [@Muze](https://forum.oldboatshome.com/u/Muze)\ **Replies:** 5\ **Last updated:** [December 16, 2024, 8:20pm UTC](https://forum.oldboatshome.com/t/tachometer-signal/474 "2024-12-16T20:20:25Z")
Years ago I had my Gray Marine combinated rpm/ oil p/ amps/ temp meter rebuild from 6V to 12V and from mechanical shaft rpm drive to a electric rpm signal input. So far I never picked up and connected a electric rpm sign… --- ## [Paragon 4XE Reverse Gear Problem](https://forum.oldboatshome.com/t/paragon-4xe-reverse-gear-problem/452)
**Author:** [@gwd](https://forum.oldboatshome.com/u/gwd)\ **Replies:** 23\ **Last updated:** [November 3, 2024, 11:28am UTC](https://forum.oldboatshome.com/t/paragon-4xe-reverse-gear-problem/452 "2024-11-03T11:28:47Z")
1951 Chris Craft 50’ Catalina powered by original rebuilt W’s with rebuilt Paragon 4XE reverse gears. After 20 year restoration, on maiden voyage, after backing off sandbar, port shift level would not go in forward. St… --- ## [M Engine Quit - Any ideas?](https://forum.oldboatshome.com/t/m-engine-quit-any-ideas/433)
**Author:** [@tparsons56](https://forum.oldboatshome.com/u/tparsons56)\ **Replies:** 24\ **Last updated:** [September 11, 2024, 10:56pm UTC](https://forum.oldboatshome.com/t/m-engine-quit-any-ideas/433 "2024-09-11T22:56:41Z")
The “M” has been running great all summer. After two weeks of not being run I went to start it and at first it fired up but then died. Started again, ran briefly, died and then nothing. Turns over fine but won’t start … --- ## [Ignition Switch for 1941 19' Custom](https://forum.oldboatshome.com/t/ignition-switch-for-1941-19-custom/436)
**Author:** [@tparsons56](https://forum.oldboatshome.com/u/tparsons56)\ **Replies:** 3\ **Last updated:** [August 29, 2024, 4:23pm UTC](https://forum.oldboatshome.com/t/ignition-switch-for-1941-19-custom/436 "2024-08-29T16:23:23Z")
Per my previous post our M engine quit and I could not get it restarted. After much trial and error I finally turned to the talented staff at Maritime Classics in Traverse City for help and it was discovered the ignitio… --- ## [HOW DOES THIS HAPPEN? Water pump sploads!](https://forum.oldboatshome.com/t/how-does-this-happen-water-pump-sploads/431)
**Author:** [@matt](https://forum.oldboatshome.com/u/matt)\ **Replies:** 6\ **Last updated:** [August 22, 2024, 11:06am UTC](https://forum.oldboatshome.com/t/how-does-this-happen-water-pump-sploads/431 "2024-08-22T11:06:37Z")
Okay since no one is needing any advice these days. I am gonna ask this, cause we are very confused. Jimmys water pump on a newer Mercruiser engine, just broke in half. Plastic yes. But the impeller is still good, and Ba… --- ## ["Snow-Nabsted" Transmission Leak (Similar to Paragon)](https://forum.oldboatshome.com/t/snow-nabsted-transmission-leak-similar-to-paragon/296)
**Author:** [@Russ](https://forum.oldboatshome.com/u/Russ)\ **Replies:** 10\ **Last updated:** [May 31, 2024, 2:09pm UTC](https://forum.oldboatshome.com/t/snow-nabsted-transmission-leak-similar-to-paragon/296 "2024-05-31T14:09:21Z")
The Kermath engine (Chris Craft “H”) is a repower in my 1931 Model 199. Tranny developed a leak. I am in the wood boat desert of Colorado (we do have a very active antique/classic club) with only one shop that will eve… --- ## [Engine Break In](https://forum.oldboatshome.com/t/engine-break-in/394)
**Author:** [@Rumbleboat](https://forum.oldboatshome.com/u/Rumbleboat)\ **Replies:** 10\ **Last updated:** [May 23, 2024, 1:41pm UTC](https://forum.oldboatshome.com/t/engine-break-in/394 "2024-05-23T13:41:58Z")
What is a good break in regimen for a newly rebuilt engine? --- ## [Steering Column assembly](https://forum.oldboatshome.com/t/steering-column-assembly/330)
**Author:** [@jshendrix01](https://forum.oldboatshome.com/u/jshendrix01)\ **Replies:** 4\ **Last updated:** [April 23, 2024, 10:36pm UTC](https://forum.oldboatshome.com/t/steering-column-assembly/330 "2024-04-23T22:36:25Z")
I’m trying to figure out the assembly of the top end of the steering column. I have basically two parts that I think go in the top end of the steering column. See picture. I know that the black bushing centers the st… --- ## [Points for Delco-Remy distributor](https://forum.oldboatshome.com/t/points-for-delco-remy-distributor/362)
**Author:** [@Dbonacker](https://forum.oldboatshome.com/u/Dbonacker)\ **Replies:** 3\ **Last updated:** [March 16, 2024, 2:00am UTC](https://forum.oldboatshome.com/t/points-for-delco-remy-distributor/362 "2024-03-16T02:00:27Z")
I need points for delco-remy distributor 1110630. I have bought them from classic boat connection before, but they don’t list them anymore . Does anyone know of another source? Thanks ,Dave --- ## [Distributor cap](https://forum.oldboatshome.com/t/distributor-cap/359)
**Author:** [@motorboatworks](https://forum.oldboatshome.com/u/motorboatworks)\ **Replies:** 4\ **Last updated:** [March 14, 2024, 6:02pm UTC](https://forum.oldboatshome.com/t/distributor-cap/359 "2024-03-14T18:02:01Z")
I have a 327f Chris Craft engine with a IBM 4115 distributor what is thecorrect part number for a new crab cap Sierra? --- ## [Hercules KLC oil pressure](https://forum.oldboatshome.com/t/hercules-klc-oil-pressure/358)
**Author:** [@Gene](https://forum.oldboatshome.com/u/Gene)\ **Replies:** 1\ **Last updated:** [March 13, 2024, 1:43pm UTC](https://forum.oldboatshome.com/t/hercules-klc-oil-pressure/358 "2024-03-13T13:43:46Z")
I just changed my oil in preparation for the upcoming Tavares show and find I now have 45 PSI oil pressure at idle cold. (south Florida 85 degree cold). Strait 30W oil was used, with 2 ounces of ZDDP zinc treatment. I ha… --- ## [Best steering cable for old Matthews launch?](https://forum.oldboatshome.com/t/best-steering-cable-for-old-matthews-launch/313)
**Author:** [@dusk](https://forum.oldboatshome.com/u/dusk)\ **Replies:** 14\ **Last updated:** [March 13, 2024, 12:36pm UTC](https://forum.oldboatshome.com/t/best-steering-cable-for-old-matthews-launch/313 "2024-03-13T12:36:03Z")
Picked up a 1902 22’ launch barn find this fall. Need to replace steering cable. Had a chain originally, but has been lost to time. Trying to keep it original, but willing to vary on the cable as I’ve found the abilit… --- ## [Generator adjustment](https://forum.oldboatshome.com/t/generator-adjustment/351)
**Author:** [@motorboatworks](https://forum.oldboatshome.com/u/motorboatworks)\ **Replies:** 2\ **Last updated:** [March 8, 2024, 4:17pm UTC](https://forum.oldboatshome.com/t/generator-adjustment/351 "2024-03-08T16:17:45Z")
Looking for advice for adjusting thee 3rd brush on my generator 309cid 6 cyl Chrysler imperial marine engine 1928 specifically the lock screw and what direction to move. The 3rd brush to reduce the voltage output of the … --- ## [Looking for a bow flag pole](https://forum.oldboatshome.com/t/looking-for-a-bow-flag-pole/350)
**Author:** [@motorboatworks](https://forum.oldboatshome.com/u/motorboatworks)\ **Replies:** 0\ **Last updated:** [March 7, 2024, 2:17am UTC](https://forum.oldboatshome.com/t/looking-for-a-bow-flag-pole/350 "2024-03-07T02:17:41Z")
1928 Chrysler imperial marine engine 6cyl 309 cubic inch Looking for advice on how to loosen the 3rd brush and what way to move it to reduce the generator output doing this all in the boat --- ## [Exhaust Connection](https://forum.oldboatshome.com/t/exhaust-connection/267)
**Author:** [@jshendrix01](https://forum.oldboatshome.com/u/jshendrix01)\ **Replies:** 4\ **Last updated:** [February 5, 2024, 3:46pm UTC](https://forum.oldboatshome.com/t/exhaust-connection/267 "2024-02-05T15:46:22Z")
This may be a silly question but this is my first restoration project. I have a Chris Craft KB engine that I’m about ready to connect the exhaust pipe to the engine. Do I use anything at the joint other than the white b… --- ## [1941 Temp. Gauge](https://forum.oldboatshome.com/t/1941-temp-gauge/279)
**Author:** [@tparsons56](https://forum.oldboatshome.com/u/tparsons56)\ **Replies:** 9\ **Last updated:** [February 5, 2024, 2:15pm UTC](https://forum.oldboatshome.com/t/1941-temp-gauge/279 "2024-02-05T14:15:46Z")
Last summer the temp. gauge on my 1941 19’ Custom quit working. I tried taking the probe out of the engine head and heating with a hair dryer and still no results. During these long winter months, I want to remove the … --- ## [Using 8V battery for starting purposes in 6V system](https://forum.oldboatshome.com/t/using-8v-battery-for-starting-purposes-in-6v-system/175)
**Author:** [@Rss8544](https://forum.oldboatshome.com/u/Rss8544)\ **Replies:** 3\ **Last updated:** [January 20, 2024, 9:07pm UTC](https://forum.oldboatshome.com/t/using-8v-battery-for-starting-purposes-in-6v-system/175 "2024-01-20T21:07:25Z")
1947 CC Rocket with a Chrysler ACE 6 cylinder with 6V electrical system. I use an 8V battery for better starting. Last season generator stopped working. Any chance this is due to the battery choice? --- ## [I have an original engine and it always breaks down](https://forum.oldboatshome.com/t/i-have-an-original-engine-and-it-always-breaks-down/19)
**Author:** [@matt](https://forum.oldboatshome.com/u/matt)\ **Replies:** 0\ **Last updated:** [January 6, 2024, 6:05pm UTC](https://forum.oldboatshome.com/t/i-have-an-original-engine-and-it-always-breaks-down/19 "2024-01-06T18:05:41Z")
This is a sample post to give you all an idea of how to ask questions, and get answers that are helpful A general question like this will get you way to many answers, there about 1000 reasons your original engine bre…