Search found 1000 matches

by C3H8
Sat Sep 29, 2018 11:46 pm
Forum: Propane Forum
Topic: 377 small block chevy, dual 425s, many issues?
Replies: 18
Views: 1126

Re: 377 small block chevy, dual 425s, many issues?

Forklift tanks come in two styles. Some older versions could only be used in a vertical position. Later the dip tube location orientation was made so they could be vertical or horizontal provided they were rotated to the correct position. One other item to keep in consideration is that forklift tank...
by C3H8
Wed Aug 15, 2018 5:59 pm
Forum: Propane Forum
Topic: Vapour solenoid ..know this one?
Replies: 4
Views: 162

Re: Vapour solenoid ..know this one?

You can see the ends are different so it depends on whether you are using connectors. I believe many of the OEM's Ford for example use the solenoid you posted. If your just using slip on vacuum lines the one posted above should do the same thing depending on the connector for the electrical. They ap...
by C3H8
Wed Aug 15, 2018 5:56 pm
Forum: Propane Forum
Topic: Vapour solenoid ..know this one?
Replies: 4
Views: 162

Re: Vapour solenoid ..know this one?

Oops wrong picture.
vcs (Small).JPG
by C3H8
Wed Aug 15, 2018 5:52 pm
Forum: Propane Forum
Topic: Vapour solenoid ..know this one?
Replies: 4
Views: 162

Re: Vapour solenoid ..know this one?

IMG_20180813_142322.jpg Hi Jono. This is the new VCS (vacuum control solenoid) from IMPCO. This is a new design but I believe it is the same as yours. Hope the picture makes it into the reply. They are directional. You can usually determine direction by sucking on the nipple. If you can get air thr...
by C3H8
Sat Aug 04, 2018 1:06 am
Forum: Propane Forum
Topic: Newbie with dual fuel headache
Replies: 2
Views: 110

Re: Newbie with dual fuel headache

I have instructions for the 5924 if you want to PM me. I can send them to you through your private email. The power??? Sometimes it is more noticable. I am presuming the P30 has the 5.7 GM engine. Sounds like you have the SFI setup. The HP at wide open throttle when tested is almost identical. The k...
by C3H8
Sat Aug 04, 2018 12:53 am
Forum: Propane Forum
Topic: Convert from SU / CD Stromberg to Impco recommendations.
Replies: 5
Views: 169

Re: Convert from SU / CD Stromberg to Impco recommendations.

Hi Storm. I'm not familiar with the engines you mention, however I suspect they are not really hi revving hi HP engines based on the vehicles you describe. The 55 series is certainly the best consideration, however it is one of my least favourite IMPCO mixers. It tends to wear out quickly because of...
by C3H8
Sat Jul 14, 2018 1:58 pm
Forum: Propane Forum
Topic: 93gmc 7.4 timing
Replies: 4
Views: 195

Re: 93gmc 7.4 timing

I'm a little late jumping into this one. The 1993 GM's actually benefited very little from timing advancers. We ran many dyno tests back then on brand new engines and the HP difference between Gas and propane was negligible. We attributed this to the knock sensors used on the 350 which would advance...
by C3H8
Fri May 18, 2018 12:36 pm
Forum: Propane Forum
Topic: basics on tank gauge sender ?
Replies: 5
Views: 285

Re: basics on tank gauge sender ?

The old gauges and senders were fairly easy to check out. All GM's of this vintage OEM gauges were 0 to 90 ohms resistance. Check the dash gauge assuming it is using the OEM gauge. First by remove the signal wire from the sender at the tank. The dash gauge should read overfull. Then ground the wire....
by C3H8
Tue Mar 06, 2018 5:43 am
Forum: Propane Forum
Topic: Ford 4.9/300 Propane Problems
Replies: 21
Views: 1438

Re: Ford 4.9/300 Propane Problems

A little add on to my previous recommendation. It sounds like the system is older and should have everything checked out. I do believe though that the problem will be found post regulator. Depressing the primer button should not affect the fuel mixtures off idle. The fact it does means the secondary...
by C3H8
Mon Mar 05, 2018 2:23 pm
Forum: Propane Forum
Topic: Ford 4.9/300 Propane Problems
Replies: 21
Views: 1438

Re: Ford 4.9/300 Propane Problems

No. From here you need to return to basics and a uniform investigation. - Starting from the tank you need to check out each component. Initially it sounds like you have a fuel restriction somewhere ahead of the converter/regulator. Check your tank valve and make sure it is functioning properly and t...
by C3H8
Mon Feb 26, 2018 12:36 am
Forum: Propane Forum
Topic: Ford 4.9/300 Propane Problems
Replies: 21
Views: 1438

Re: Ford 4.9/300 Propane Problems

On a 125 mixer the power valve is an integral part of the mixer. It is located at the vapour inlet on the bottom side. Its the silver adjuster with a small pointer on it and has 2 wrench flats. Probably 1/2 inch(13MM) wrench size. The mixer will have an R and L stamped in it indicating Rich and lean...
by C3H8
Mon Feb 26, 2018 12:35 am
Forum: Propane Forum
Topic: Ford 4.9/300 Propane Problems
Replies: 21
Views: 1438

Re: Ford 4.9/300 Propane Problems

On a 125 mixer the power valve is an integral part of the mixer. It is located at the vapour inlet on the bottom side. Its the silver adjuster with a small pointer on it and has 2 wrench flats. Probably 1/2 inch(13MM) wrench size. The mixer will have an R and L stamped in it indicating Rich and lean...
by C3H8
Sun Feb 25, 2018 1:17 am
Forum: Propane Forum
Topic: Ford 4.9/300 Propane Problems
Replies: 21
Views: 1438

Re: Ford 4.9/300 Propane Problems

All valid comments ahead of this post. The 300 would stretch the capability of a J though. The problem is the fuel is taxing the capability of the reg to vapourize enough fuel. Your comment about pushing the primer help indicate that there is a problem with the J. A primer button is meant to depress...
by C3H8
Fri Feb 16, 2018 1:49 pm
Forum: Propane Forum
Topic: Catalytic convertor on a 2015 gas 2500hd
Replies: 3
Views: 344

Re: Catalytic convertor on a 2015 gas 2500hd

The post cat 02 sensor measures cat efficiency. The ECU compares the pre-cat O2 with the post-cat reading expecting to see a variation in the readings. If it see a wide variation is signals a problem. Misfires are a cats worst enemy. Your loss of mileage is probably due to the cat becoming plugged. ...
by C3H8
Thu Feb 08, 2018 2:59 pm
Forum: Propane Forum
Topic: Exhaust valve rotators
Replies: 2
Views: 305

Re: Exhaust valve rotators

Keep them. Back in the pre-unleaded days it was controversial. Ford said disable them and did so on all the 429 F700 and F800 trucks. I believe they continued to do this even after unleaded came to market. Chrysler and GM said keep them. After unleaded our company went right to the source and asked ...