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PintoMan1

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Your Pintos/Bobcats & Racers / Re: Too much compression?!
« Last post by pinto_one on Today at 03:56:55 PM »
What ! I thought everything on the internet was true  :o  , but good thing I did not go out and buy thinking they would work , have to double check that mith myself , but still do not know if the industral cam is any better , the head casting is diffrent also , it was made as a duel plug head but the extra hole for the spark plugs are not machined out at all , and has the small valves and valve seats , this one had a propane carb on it , thanks for the info , guess typos always waste time and money when they look to be legit , at least I can run the engine on a test fixture with the prop and swap out the cams to give me max rpm static and find out which one is the best ,
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General Help- Ask the Experts... / Re: "New" Pinto No Spark
« Last post by rob289c on Today at 01:59:36 PM »
I didn't see any external leaks so it is a good possibility that the vacuum modulator diaphragm is bad.  I'll check that when I get under to either tighten the exh manifold or take apart for a new gasket.  The new distributor came in yesterday but I'm not messing with it until the weekend.  70 hour work weeks and 95 degree temps make me stay out of the garage. The weekend will be cooler rainy.  Good shop weather.
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Your Pintos/Bobcats & Racers / Re: Too much compression?!
« Last post by 65ShelbyClone on Today at 11:38:45 AM »
The cam and rocker set up I got from a write up on Routh 66 hot rod high

Not that site again....

The 2.3 cam and rocker information on that site is entirely wrong and at this point I would argue entirely responsible for the roller follower "ratio upgrade" myth refusing to die. There is no difference in ratio between early and late roller followers.

https://turboford.org/thread-95-rocker-arm-swap?
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General Pinto Talk / Re: 357,000 miles!
« Last post by dga57 on Today at 08:36:00 AM »
Now at 375,000 and running strong on the original engine!    ;D


A testament to Ford engineering and great maintenance/upkeep! 

Dwayne :)
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Your Pintos/Bobcats & Racers / Re: Too much compression?!
« Last post by pinto_one on Today at 08:13:02 AM »
The cam and rocker set up I got from a write up on Routh 66 hot rod high , has a listing for what year cam and rockers , and what changed when you swap parts , Got both of them and also going to check to see if the industral 2.5 cam is any diffrent , ( got one of those also ) as for why the lima engine in a airplane is because they are very reliable and there is one airplane that will work with it , only is was built back in 1928 with the ford model A engine , yep only forty HP on a good day but it worked , not fast but it did work well , many engines were put in that aircraft but I wanted to keep it all ford , (model A engines are getting hard to find ) but I will be useing the 2.5 with the duel plug head so I will have a secondary ign like real aircraft , the ford industral book list the LRG425 at 65 HP @ 2700 rpm so power is enough and the weight of the engine is about the same as the model A engine , just need the low end grunt to swing the prop , as for how lnog it will last , it will out live me , I work at the airport and most of the tugs here have that engine in them , I look on the hour metter (HOBBS) they have over 6 to 7K on them , they overhaul the piston engines in aircraft at 2K some go more but not often ,
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General Pinto Talk / Re: 357,000 miles!
« Last post by mikerich1972 on Yesterday at 10:36:41 PM »
Now at 375,000 and running strong on the original engine!    ;D

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Your Pintos/Bobcats & Racers / Re: Too much compression?!
« Last post by Wittsend on Yesterday at 02:04:54 PM »
I've heard a lot of differing aspects regarding the rocker ratio change. I SOOOooo wanted to take one of each rocker and test them side by side. Virtually ever article I've read is all "talk" and I can't recall anyone giving proof.

 The only thing that changes is the position of the roller as it relates to the ratio. It would have to move closer to the lifter to improve the ratio. BUT, - and this is assuming the stock roller sits directly centered under the high point of the cam (we will call it 6 O'Clock) at full lift, then the greater lift rocker would be inclined towards 5 O'Clock at its full lift. It then becomes a factor of does the greater ratio give equal or greater compensating lift..., or does the high lift occurring at an angle (5 O'Clock)  therefore only be equal or less? I  did a drawing (limited skills) to illustrate the point.

BTW, why a Lima engine in a plane? It is one of the heavier 4 cylinder engines.
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Your Pintos/Bobcats & Racers / Re: Too much compression?!
« Last post by pinto_one on Yesterday at 01:31:47 PM »
one of the resons I am useing the roller , but you can change the rocker arms from the last year lima , its a diffrent ratio but brings in a tad of lift and a few more degres of duration and I am going to pull in a much advance as I can for lowi end torque , the max RPM will never see over 2700 , it will be swinging a 74 inch wooden propellor , yep it going on a airplane ,
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General Help- Ask the Experts... / Re: "New" Pinto No Spark
« Last post by pinto_one on Yesterday at 01:21:38 PM »
Good news and bet your happy it runs , now you just have to chase out the grimlims out the car and look and see any future problems that may be hiding , you put in 2 qts of trans flude so did you see any leaks , it had to go somewhere , so check the vac line to the transmission for oil , if there is the modulator has a hole in it and will zoop the fluld out the trans , soon you will be driving it , have a good one
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General Help- Ask the Experts... / Re: "New" Pinto No Spark
« Last post by rob289c on July 05, 2020, 05:20:31 PM »
Today I removed the supply and return lines from the fuel pump, extended the lines and dropped them into a 1-gallon gas can under the car and used that as a fuel cell.  It's on 4 jackstands so there is plenty of room under the car.  I got it to start and stay running.  I adjusted the idle up a little and played with the timing a bit and it will sit and idle without having to feather the throttle.  No knocking or other troubling noises.  When I put it in Drive and Reverse, nothing.  After adding 2 qts of Type F, it goes in both forward and reverse.  There is a terrible exhaust leak where the upper converter bolts to the exh manifold so it is loud and lots of fumes while under hood.  I'll have to get that tightened up to eliminate or minimize the leak.  I tried from above with 9/16, 5/8, 14 an 15  box ends, but none seemed to be the right size.  Can someone tell me what size it should be?  I'll try again another day from underneath with ratchet, socket, extension.

I made good progress this weekend; thanks again for all help provided.
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