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Old 01-30-2014, 10:10 AM   #1
volvo 4 life
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Default Will a 1991 240 fuel pump fit my 1979 242?

My main fuel pump stopped working on my car this week, hit it with a hammer and it turns a few times and stops so it's shot. The in tank pump works fine. I have a 1991 244 parts car with a good pump on it, will it fit my car without modification? I would buy a brand new one but I can't find any direct replacement k-jet pumps. My car is a 1979 242 with a turbocharged b21 and lh2.2, so if there's a specific pump recommended that would work best I'm up to suggestions, I just want to fix my car. Thanks
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Old 01-30-2014, 11:03 AM   #2
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Originally Posted by volvo 4 life View Post
My main fuel pump stopped working on my car this week, hit it with a hammer and it turns a few times and stops so it's shot. The in tank pump works fine. I have a 1991 244 parts car with a good pump on it, will it fit my car without modification? I would buy a brand new one but I can't find any direct replacement k-jet pumps. My car is a 1979 242 with a turbocharged b21 and lh2.2, so if there's a specific pump recommended that would work best I'm up to suggestions, I just want to fix my car. Thanks
No need for a k-jet pump to keep an LH2.2 regulator returning excess to the tank. Your question is just about fit now.

Also, I would encourage you, if you have the means, to take your dead pump apart and see if you can determine whether brush life or commutator life was what ended the pump's life. And see if your hammer taps were enough to crack the permanent magnets. You have an opportunity to learn something and teach us too.
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Old 01-30-2014, 12:03 PM   #3
volvo 4 life
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Yeah when I take it off I'll try and disassemble it. For right now I just need to know if the newer style pump will fit the existing lines under the car so I can get this thing back on the road because as of right now it's sitting in my driveway taking up space.
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Old 01-30-2014, 12:11 PM   #4
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Originally Posted by volvo 4 life View Post
My main fuel pump stopped working on my car this week, hit it with a hammer and it turns a few times and stops so it's shot. The in tank pump works fine. I have a 1991 244 parts car with a good pump on it, will it fit my car without modification? I would buy a brand new one but I can't find any direct replacement k-jet pumps. My car is a 1979 242 with a turbocharged b21 and lh2.2, so if there's a specific pump recommended that would work best I'm up to suggestions, I just want to fix my car. Thanks
http://www.ipdusa.com/products/6996/...pump-k-jet-200

Philski has one for $65 HERE
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Old 01-30-2014, 02:32 PM   #5
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Thank you. I couldn't find the k-jet pump on ipd when I searched for it under my car's model and year. Are there any differences in how the k-jet pump and lh pump are connected?
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Old 01-30-2014, 03:38 PM   #6
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Some replacement pumps for Kjet or LH have ring terminals instead of the original bullets. I make an adapter harness so it still unplugs rather than chopping the car harness.

But originally, they use the same electrical bullets.

Fuel hoses are a little different. You can swap the check valve? IIRC and re-use the k-jet fittings to the accumulator. YMMV on that. IIRC the pump bracket and mix and match from your 91 you ought to be able to do it.

Sometimes brand new is nice.

Bushings may have also worn in the pump from grit on a nearly empty tank/disintegrating sock/dead intank. Verify how the tank looks inside and how well the tank pump works.
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Old 01-30-2014, 11:38 PM   #7
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The style of fuel pump for K-jet changes in 1980.

Does your fuel pump look like this Bosch fuel pump for 1979 and earlier K-jet?







Or does your fuel pump look like this Bosch fuel pump for 1980 and later K-jet and LH?



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Old 06-22-2014, 10:17 PM   #8
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hey guys, I'm currently having the same problem with my 1979 242 GT, is it very hard to make my own connectors if i buy a different pump? how would i go about doing it? thanks
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Old 06-22-2014, 11:17 PM   #9
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hey guys, I'm currently having the same problem with my 1979 242 GT, is it very hard to make my own connectors if i buy a different pump? how would i go about doing it? thanks
The connectors are snip, crimp, heat.
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